Job Title: Senior Selenium Automation Tester (.NET OR Java Environment)
Clearance Requirement: Must have continuously resided in the U.S. for the past 3 years (Public Trust eligibility required)
Experience: 8+ years Must
Position Overview:
Our Client is seeking a highly skilled Senior Selenium Automation Tester with at least 8+ years of experience in automation testing, particularly within .NET environments. The ideal candidate will be proficient in MS SQL and possess a strong background in designing and executing automated test suites using Selenium. This individual will play a critical role in ensuring the quality and reliability of mission-critical applications within the federal healthcare domain.
Key Responsibilities:
Design, develop, and maintain robust automated test scripts using Selenium WebDriver within a .NET framework.
Collaborate with developers, QA engineers, and business analysts to define comprehensive test strategies and acceptance criteria.
Execute automated and manual test plans; log, track, and follow up on defects through resolution.
Perform backend data validation and analysis using MS SQL queries.
Participate in sprint planning, code reviews, and quality assurance best practices to support Agile development cycles.
Generate detailed test reports, documentation, and traceability matrices.
Continuously improve and maintain the test automation framework.
Required Qualifications:
Minimum 8 years of hands-on experience with Selenium-based automation testing.
Solid experience testing applications developed in .NET.
Proficiency with MS SQL for backend data validation and query development.
Familiarity with testing frameworks such as NUnit, MSTest,
$71k-90k yearly est. 2d ago
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Senior Test Engineer - Active TS/SCI with CI Poly
ENS Solutions, LLC
Software tester job in Washington, DC
Analyze system requirements and concept of operations documents, acquisition plans, and system descriptions to develop evaluation and test plans and procedures, prepare for and conduct the data collection and analysis, and report status and results
Support the development of Government test and evaluation documentation e.g., Test & Evaluation (T&E) Strategy, Test & Evaluation Master Plan, Event Test Plans, Test Readiness Assessments, and T&E Reports.
Work with other test organizations to support T&E program integration
Provide specialized T&E capabilities tailored to system functions, level, maturity, and performance areas
Requirements
Bachelor's degree and 10+ years of relevant experience.
Must have an Active TS/SCI Clearance; willingness to obtain and maintain a CI Poly.
Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly regarded IT consulting and management firm. ENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. Our strong technical and management experts have been able to maintain a standard of excellence in their relationships while delivering innovative, scalable and collaborative infrastructure to our clients.
Why ENS?
Free Platinum-Level Medical/Dental/Vision coverage, 100% paid for by ENS
401k Contribution from Day 1
PTO + 11 Paid Federal Holidays
Long & Short Term Disability Insurance
Group Term Life Insurance
Tuition, Certification & Professional Development Assistance
Workers' Compensation
Relocation Assistance
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$77k-101k yearly est. 4d ago
RUST Software Engineers
L3Harris Technologies 4.4
Software tester job in Herndon, VA
L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.
L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers' mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
L3Harris Engineering Career Fair - Herndon, VA
Date: Wednesday, January 28th, 2026
Time: 2:00 pm - 6:00 pm EST
Location: DoubleTree by Hilton McLean Tysons, 1960 Chain Bridge Rd, McLean, VA 22102
L3Harris Surface & C5 Systems - Herndon is a worldwide leader in the engineering, development, manufacture and integration of high assurance encryption systems for defense and governmental applications. The company's encryption solutions can be found in a wide range of demanding military environments around the world. Join our dynamic team!
Qualified engineering & program management applicants must be US citizens and possess active government issued security clearance. Applicants withoutan active government issued security clearance will not be eligible for hire.
This is a hiring event for experienced professionals, not aimed at recent college graduates, and all positions will be onsite.
We will be interviewing and hiring for the following positions:
RUST Software Engineers/Developers
Embedded / C++ Software Engineers with experience
Systems Security/Network Engineers
VHDL/Electrical Design Engineers
Click 'APPLY NOW' to confirm your attendance.
#LI-IK1
L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.
Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.
By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.
L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.
$72k-95k yearly est. 1d ago
Software Engineer - R&D Systems
Novateur Research Solutions
Software tester job in Ashburn, VA
Software Engineer - Entry to Mid-Level (R&D Systems)
Novateur stands for Innovation. We value creativity, vision, collaboration, and above all, ambition to innovate. Novateur Research Solutions is an R&D firm located in Northern Virginia, developing intelligent systems that push the boundaries of computer vision, AI, and large-scale learning.
We are looking for Software Engineers eager to build scalable systems and deploy machine learning models in real-world environments. You will work closely with our researchers and engineers to develop software for real-time perception, geospatial analytics, and distributed systems.
Responsibilities:
• Develop and deploy production-grade software in Python and C++.
• Build APIs, data pipelines, and visualization tools to support machine learning workflows.
• Collaborate with researchers to translate algorithms into efficient implementations.
• Contribute to system design, cloud deployment (AWS), and automation.
Requirements:
• BS or MS in Computer Science, Engineering, or a related field.
• Proficiency in modern programming and software engineering practices.
• Familiarity with Docker, Kubernetes, or AWS.
• Enthusiasm for learning and applying machine learning or computer vision methods.
• U.S. Citizen or Permanent Resident.
Why Novateur?
Join a team that values creativity and initiative. Our engineers have freedom to innovate, collaborate with top researchers, publish research in major scientific conferences, and see their ideas deployed in impactful applications.
Company Benefits:
Novateur offers competitive pay and benefits comparable to Fortune 500 companies that include a wide choice of healthcare options with generous company subsidy, 401(k) with generous employer match, paid holidays and paid time off increasing with tenure, and company paid short-term disability, long-term disability, and life insurance.
We offer a work environment which fosters individual thinking along with collaboration opportunities within and beyond Novateur. In return, we expect a high level of performance and passion to deliver enduring results for our clients.
$72k-99k yearly est. 1d ago
Enterprise Software Engineering Director & CoE Leader
Northrop Grumman Corp. (Au 4.7
Software tester job in McLean, VA
A leading defense technology company is seeking a Corporate Software Engineering Director to shape the vision and execution of software engineering across the enterprise. This role requires extensive experience in software engineering management and systems engineering. Candidates must hold a Bachelor's or Master's degree in a STEM field and have a current secret-level security clearance. Duties include leading change management initiatives and developing a unified talent development framework. It is a full-time position based in McLean, Virginia.
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$82k-104k yearly est. 3d ago
Pncpl Software Engineer
Deltek, Inc. 4.8
Software tester job in Herndon, VA
08-Jan-2026
Principal AI Applications Engineer
US Herndon, VA
10558BR
As the recognized global standard for project-based businesses, Deltek delivers software and information solutions to help organizations achieve their purpose. Our market leadership stems from the work of our diverse employees who are united by a passion for learning, growing and making a difference. At Deltek, we take immense pride in creating a balanced, values-driven environment, where every employee feels included and empowered to do their best work. Our employees put our core values into action daily, creating a one-of-a-kind culture that has been recognized globally. Thanks to our incredible team, Deltek has been named one of America's Best Midsize Employers by Forbes, a Best Place to Work by Glassdoor, a Top Workplace by The Washington Post and a Best Place to Work in Asia by World HRD Congress. **************
Business Summary
The Deltek Engineering and Technology team builds best-in-class solutions to delight customers and meet their business needs. We are laser-focused on software design, development, innovation and quality. Our team of experts has the talent, skills and values to deliver products and services that are easy to use, reliable, sustainable and competitive. If you're looking for a safe environment where ideas are welcome, growth is supported and questions are encouraged - consider joining us as we explore the limitless opportunities of the software industry.
Position Responsibilities
About the Role
We're building an enterprise ERP system from scratch where AI isn't a feature-it's the foundation.
Join Deltek's Engineering and Technology team to create the first truly AI-native SMB ERP. Users will chat with their system instead of clicking through forms. Intelligent agents will handle routine tasks autonomously. And you'll use AI to write better code faster.
This is a greenfield project. No legacy constraints. No technical debt. Just the opportunity to reimagine what enterprise software can be when designed for AI from day one.
As a principal engineer, you'll solve the hardest technical problems, create reference implementations that set the standard, and mentor engineers in a development paradigm that's still emerging. You'll prove that AI-native enterprise software isn't just possible-it's superior.
Key Responsibilities
Implement the most technically challenging features of the AI-powered ERP platform, serving as the go-to expert for complex integration and performance challenges
Develop reference implementations and coding patterns that other engineers follow when building AI-enhanced features
Implement sophisticated prompt engineering and LLM integration solutions, ensuring security, performance, and cost-effectiveness
Build production-ready ML integration code utilizing infrastructure provided by the dedicated AI/ML infrastructure team
Provide deep technical expertise on critical implementation challenges affecting multiple teams, offering solutions based on extensive hands-on experience
Collaborate with architects to validate technical approaches through proof-of-concepts and prototypes
Champion code quality, comprehensive testing, security best practices, and operational excellence
Identify and resolve complex technical debt that impacts multiple teams
Serve as technical advisor to architects and engineering leadership on implementation feasibility and development best practices
Mentor and develop senior engineers, elevating implementation capabilities across the engineering organization
Drive innovation through hands-on proof-of-concepts exploring novel approaches to ERP challenges
Qualifications
Education & Experience
Bachelor's or Master's degree in Computer Science, Engineering, Mathematics, Data Science, or related field
10+ years of professional software engineering experience with extensive hands-on AI/ML systems implementation
Demonstrated history of technical leadership through exceptional implementation quality on large-scale, business-critical systems
Proven track record of solving complex implementation challenges that enabled significant business outcomes
Experience providing technical guidance and mentoring senior engineers
Deep expertise in implementing enterprise software and AI/ML integrations with production deployments at scale
Technical Skills
Programming Languages: Master-level expertise in Java, Python, and ability to work effectively in multiple languages
Implementation Expertise: Deep expertise in implementing distributed systems, microservices, event-driven patterns, and domain-driven design
Database: Expert-level implementation skills with PostgreSQL including performance optimization, complex query development, and multi-tenant data patterns
AI/ML Integration: Comprehensive expertise in implementing LLM systems, prompt engineering at scale, RAG architectures, and model integration
Development Best Practices: Experience establishing coding standards, testing patterns, and development workflows that improve team productivity
Cloud & Infrastructure: Expert knowledge of implementing cloud solutions and working with managed services across AWS/Azure/OCI
API & Integration: Deep expertise in implementing robust APIs, integration patterns, and extensible features
Observability & Reliability: Expert in leveraging comprehensive monitoring, logging, and error handling
Security: Strong understanding of implementing security controls, authentication/authorization, and data protection
Leadership & Communication: Exceptional ability to communicate complex technical concepts and influence development approaches through collaboration
Pragmatic Thinking: Ability to balance code quality with delivery timelines, provide practical technical guidance, and align development work with business goals
AI-First Mindset
This role requires embracing an AI-first approach where GenAI and agentic AI tools are essential collaborators, not optional supplements. We expect team members who naturally think in AI-enhanced workflows and proactively integrate intelligent automation to solve ERP development challenges more efficiently.
The ideal candidate has strong interest in prompt engineering techniques and conversational AI systems, with understanding of how to craft effective prompts for business contexts. You should be curious about natural language processing and how AI enhances user experiences, along with basic awareness of AI ethics and prompt safety considerations.
We're looking for someone who approaches ERP feature development by first asking: "How can AI help me build this functionality faster and better?" This includes being comfortable with rapid AI tool evolution, eager to experiment with new AI capabilities for prompt engineering and ERP optimization, and committed to sharing AI-enhanced approaches with the team.
We value those who apply prompt engineering to solve real-world ERP business problems and see AI as a productivity multiplier for strategic development decisions, rather than a replacement for human expertise.
Compensation Info
The U.S. salary range for this position is $91,000.00-$160,750.00. This range is subject to change as Deltek takes a number of factors into consideration when determining individual base pay, such as location, job-related knowledge, skills and experience. Certain roles are eligible for additional rewards, including incentive compensation and equity.
Benefits and perks listed here may vary depending on the nature of employment with Deltek. Employees have access to healthcare benefits, a 401(k) plan and company match, paid vacation time and holidays, well-living programs, short-term and long-term disability coverage, basic life insurance and tuition reimbursement.
Position Type
FT
Travel Requirements
10%
Compliance Requirements
Certain roles may have additional privacy, security and compliance requirements to the extent they support Costpoint GCCM or similar product offerings.
EEO Statement
Deltek, Inc. is an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status.
E-Verify Statement
Deltek, Inc., utilizes the E-Verify program with every potential new hire. This makes it possible for us to make certain that every employee who works for Deltek is eligible to work in the United States. To learn more about E-Verify you can call or visit their website by clicking the logo below. E-Verify is a registered trademark of the United States Department of Homeland Security.
Applicant Privacy Notice
Deltek is committed to the protection and promotion of your privacy. In connection with your application for employment with us at Deltek, it is necessary for us to collect, store and use information about you ("Personal Data") to administer and evaluate your application. We are the "controller" of the Personal Data you provide us and will process any such Personal Data in accordance with applicable law and the statements contained in this Employment Candidate Privacy Notice. Additionally, we have not sold and do not sell Personal Data you provide to us through the job application process.
$91k-160.8k yearly 2d ago
Test Enginer
Crystal Management | CMIT
Software tester job in Vienna, VA
SENIOR TEST ENGINEER
The Scalable Ways to Implement Flexible Tasks (SWIFT) contract spans apps across four domains: Platform-as-a-Service (PaaS), collaborative services, visualization and hyperautomation, covering agile development, operations and maintenance of applications within a new center of excellence for evaluating emerging technologies.
The Test Engineer will support the SWIFT contract services to include the development of workflow automation to improve user experience through self-service and mobility of ServiceNow and Dynamics systems as well as emerging technologies; combining technologies like robotic process automation (RPA) and machine learning (ML) to identify, vet and automate IT processes using UiPath and Power Automate; and buildout of dashboards and reporting using Tableau, Qlik, PowerBI and emerging services.
Location: Remote position with occasional local travel to the Reston, VA office.
Responsibilities
Develop and execute test plans, test cases, and test scripts for software applications.
Conduct manual and automated testing to ensure the quality and functionality of systems and applications.
Report and document defects, collaborate with development teams for resolution, and re-test fixes to ensure the quality of the software.
Assist in maintaining test automation frameworks and scripts to streamline testing processes.
Work in coordination with senior test engineers to ensure that testing efforts are aligned with project requirements.
Support the implementation of robotic process automation (RPA) within the SWIFT initiative.
Participate in occasional in-person meetings at the Reston office, as required.
Qualifications
Education/Certification Required
Bachelor's Degree in Computer Science, Information Systems, Engineering, or a related field.
Qualifications Required
3 years of experience in software testing or quality assurance, ideally in a government or regulated environment.
Experience with automation tools and familiarity with robotic process automation (RPA) solutions.
Preferred Qualifications:
DHS Trusted Tester certification is a plus
Clearance Requirements
Ability to obtain ICE clearance
$69k-89k yearly est. 2d ago
Back End Software Engineer
LMI Consulting, LLC 3.9
Software tester job in Tysons Corner, VA
Job ID 2025-13455 # of Openings 1 Category Information Technology Benefit Type Salaried High Fringe/Full-Time
LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.
Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors-helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.
Our team is laser-focused on creating cutting-edge RFID solutions for the DoD that bring passive and active RFID tech to life, solving tough integration challenges across global sites. If you're ready to dive in, take ownership, and ship real value, keep reading.
Responsibilities
The Opportunity
We're looking for a Backend Software Engineer with strong C# / .NET, Entity Framework, and Relational Database skills to join our logistics app team. You'll work closely with product owners, designers, and fellow engineers to quickly iterate on features, improve performance, and build out a secure, scalable platform for real-world military and government users.
This role blends hands-on coding with architectural input, and you'll be exposed to everything from UI workflows to backend API logic to deployment automation.
What You'll Do
Write clean and secure back-end services using C# / .NET, with a focus on REST APIs and modular design.
Design and optimize data access layers using Entity Framework.
Participate in code reviews and contribute to best practices and documentation.
Collaborate across design, product, DevSecOps, and field teams to launch features quickly and securely.
Participate in rapid prototyping cycles while maintaining production-grade coding standards.
Write unit and integration tests to support automated testing/validation and code quality gates.
Troubleshoot bugs, squash performance bottlenecks, and help build towards FedRAMP and IL5 deployment requirements.
Qualifications
What We're Looking For:
3+ years of relevant software engineering experience.
Proficiency in C# and modern .NET, with hands-on experience with Entity Framework and relational databases.
Solid understanding of SQL, indexing, and query optimization.
Familiarity with dependency injection, async/await, and LINQ.
Experience building REST APIs and understanding the relationship between frontend and backend systems.
Familiarity with secure software development practices and CI/CD pipelines (GitHub Actions, GitLab, etc).
Comfortable working in Agile or Lean environments, with rapid delivery cycles and direct user feedback loops.
US Citizenship with the ability to obtain and maintain a government security clearance. Active Secret or TS clearance preferred.
Bonus Points For:
Experience with Docker, Kubernetes, or containerized deployment pipelines.
Hands-on work with secure government environments (DoD, IL5+, FedRAMP).
Familiarity with AWS GovCloud.
Experience building logistics, supply chain, or asset tracking applications.
Exposure to message brokers like Kafka or RabbitMQ.
Certifications like Security+ and AWS Developer/Architect.
Past experience at a startup or in rapid-growth teams.
Target salary range: $100,000 - 170,000. Final compensation will be determined by a variety of factors including but not limited to your skills, experience, education, and/or certifications.
#LI-SH1
LMI is an Equal Opportunity Employer. LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities. LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, disability, age, protected veteran status, citizenship status, genetic information, or any other characteristic protected by applicable federal, state, or local law. If you are a person with a disability needing assistance with the application process, please contact
Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
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$100k-170k yearly 3d ago
Software Engineer - TS/SCI Required
Expedition Technology
Software tester job in Herndon, VA
Software Engineer - TS/SCI Required Are you a software engineer who thrives on building robust, scalable systems? Do you enjoy crafting clean, maintainable code that powers mission-critical environments? At Expedition Technology (EXP), we're looking for a Software Engineer with a DevOps mindset to help us design and implement services that support verification, validation, testing, and evaluation workflows for the DoD and Intel communities. This role is ideal for someone who is a software engineer first-someone who writes production-grade Python, understands modern software architecture, and can contribute across the stack. DevOps experience is a bonus, especially if you've worked with containerized deployments and CI/CD pipelines, but your primary focus will be building the services that run in our mission environments. What You'll Do:
Design and implement Python-based services and internal tools to support mission workflows
Build scalable, maintainable, and testable software systems for verification and validation environments
Collaborate across teams to establish best practices in software engineering, testing, and observability
Contribute to the design and evolution of mission-critical environments
Support deployment and automation efforts using containerization and CI/CD tools (bonus)
Mentor teammates and help grow engineering capabilities across the team
What You Bring:
U.S. Citizenship
An active TS/SCI security clearance
Bachelor's degree in Computer Science, Electrical Engineering, or a related field
5+ years of experience in software engineering with a strong foundation in Python
Ability to write clean, modular, and well-tested code using modern software engineering practices
Solid understanding of software architecture, design patterns, and system integration
Familiarity with containerization (e.g., Docker) and CI/CD tools (e.g., GitLab) is a plus
Experience with Kubernetes is a bonus, but not required
Familiarity with cloud platforms (e.g., AWS) is helpful, but not the primary focus
A collaborative mindset and a passion for engineering excellence
Why EXP? We're solving some of the nation's hardest problems with cutting-edge technology and a culture of innovation, collaboration, and autonomy. If you're ready to build systems that matter-and do it with a team that values engineering excellence-let's talk. Why Join Us?
At Expedition Technology, you'll work on impactful projects that push the boundaries of what's possible with machine learning. You'll be part of a collaborative team that values innovation, technical excellence, and mission success.
Join our expedition and help shape the future of intelligent systems.
Clearance Required: TS/SCI
Who is Expedition Technology?
Expedition Technology (EXP) designs, develops, and delivers innovative, advanced signal, image, and multi-INT solutions for the defense and intelligence communities. We leverage advanced algorithms, platforms, and technologies to solve our customers' most complex, demanding, and urgent C4ISR challenges. Our culture promotes individual growth and opportunity, prioritizes a collaborative team spirit, and invites the intellectually curious to creatively solve challenging problems. Headquartered in Northern Virginia's high-tech corridor, EXP is a rapidly growing, privately held, employee-owned company that pushes the boundaries of what is possible every day.
Interested in joining our team? Let's explore together.
To learn more about EXP and discover why we are an award-winning workplace, visit ourweb siteand follow us on LinkedIn.
Join Our Team and Enjoy Exceptional Benefits!
Expedition Technology (EXP) offers a flexible, self-directed benefits package that is designed to fit your individual needs.Here's a glimpse of the outstanding benefits you can enjoy when you join our team:
Company-paid medical, dental, and vision insurance
Generous Time Off: Enjoy 12 paid holidays, up to 33 days of PTO, and generous sick leave
Robust 401(k) Plan: Benefit from up to a 12% company contribution, including a 3% safe harbor, 6% match, and up to 3% additional as a form of profit sharing.
Student Loan Repayment: Take advantage of our unique option to reallocate a portion of your 401(k) match funds to repay student loans, helping you achieve financial freedom faster.
Paid Parental Leave: Six weeks of paid leave for the primary caregiver and 2 weeks of paid leave for the secondary caregiver for you to bond with your new family member.
Tuition Reimbursement: Pursue further education with up to $5,250/year available to support your continuous learning and growth.
Referral Bonus Program: Earn rewards for bringing talented individuals into our team.
Exclusive Entertainment Perks: Enjoy free tickets to sporting events, theater, concerts, and more, adding fun and excitement to your life.
Onsite Amenities: Stay fit and healthy with our free, onsite fitness center, active workstations featuring treadmill and bike desks, and enjoy our onsite cafeteria with reduced-cost options.
Inspiring Work Culture: Thrive in a collaborative, creative, and supportive culture where you are encouraged to push boundaries, take risks, and enjoy the rewards.
Join us and be part of a team that values your well-being and professional growth. Apply today and take the first step towards a fulfilling career with us!
EXP is proud to be an Equal Opportunity Employer that believes a diverse range of talent creates an environment that fosters creativity and innovation
.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, genetic information, or protected veteran status.
$71k-94k yearly est. 2d ago
Software Engineer - Graph Technologies
Raft 3.9
Software tester job in Chantilly, VA
This is a U.S. based position. All of the programs we support require U.S. citizenship to be eligible for employment. All work must be conducted within the continental U.S.
Who we are:
Raft () is a customer-obsessed non-traditional small business with a purposeful focus on Distributed Data Systems, Platforms at Scale, and Complex Application Development, with headquarters in McLean, VA. Our range of clients includes innovative federal and public agencies leveraging design thinking, cutting-edge tech stack, and cloud-native ecosystem. We build digital solutions that impact the lives of millions of Americans.
About the role:
As a Software Engineer - Graph Technologies, you will be diving deeper into the software lifecycle, taking on more complex tasks and leading smaller project initiatives. You will not only write code but also be involved in design discussions, code reviews, and mentoring Associate and Standard Engineers, helping to maintain the high standards of our organization.
This role is contingent on contract award.
What we are looking for:
3+ years of hands-on experience as a software engineer
Design and develop graph-based applications using Neo4j, Amazon Neptune, or similar graph databases
Implement graph algorithms and analytics for complex data relationship analysis and visualization
Build and maintain scalable microservices and APIs supporting Intelligence Community requirements
Develop semantic data models and ontological frameworks, particularly Common Core Ontology implementations
Collaborate with analysts and stakeholders to translate mission requirements into technical solutions
Optimize graph queries and data structures for performance in high-security environments
Participate in agile development practices including code reviews, testing, and continuous integration
Support deployment and maintenance of applications in classified computing environments
Bachelors degree in Computer Science, Engineering, Physics, Mathematics or a related field
Graph Technology Experience - Hands-on experience with graph databases (Neo4j, Neptune, ArangoDB) and graph processing frameworks
Highly preferred:
Previous work supporting IC missions and familiarity with classified environments
Direct experience with National Reconnaissance Office programs, data systems, or mission requirements
Common Core Ontology (CCO) - Hands-on experience implementing CCO standards and semantic modeling frameworks
Container Technologies - Experience with Kubernetes orchestration and Helm chart development/management
Advanced Graph Skills - Experience with graph visualization tools, complex graph algorithms, or distributed graph processing
Cloud Platforms - Familiarity with AWS/Azure services, particularly graph and analytics offerings
Security+ or Similar - Current DoD 8570 baseline certification or equivalent
Advanced Degree - Master's in Computer Science, Data Science, or related field
Clearance Requirements:
Active Top Secret clearance with ability to obtain and maintain SCI
Preference for those with Polygraph
Work Type:
Onsite in Chantilly, VA
Ability to work from a SCIF at least 3 days a week
May require up to 25% travel
Salary Range:
$150,000 - $200,000
The determination of compensation is predicated upon a candidate's comprehensive experience, demonstrated skill, and proven abilities
What we will offer you:
Highly competitive salary
Fully covered healthcare, dental, and vision coverage
401(k) and company match
Take as you need PTO + 11 paid holidays
Education & training benefits
Generous Referral Bonuses
And More!
Our Vision Statement:
We bridge the gap between humans and data through radical transparency and our obsession withthemission.
Our Customer Obsession:
We will approach every deliverable like it's a product. We will adopt a customer-obsessed mentality. As we grow, and our footprint becomes larger, teams and employees will treat each other not only as teammates but customers. We must live the customer-obsessed mindset, always. This will help us scale and it will translate to the interactions that our Rafters have with their clients and other product teams that they integrate with. Our culture will enable our success and set us apart from other companies.
How do we get there?
Public-sector modernization is critical for us to live in a better world. We, at Raft, want to innovate and solve complex problems. And, if we are successful, our generation and the ones that follow us will live in a delightful, efficient, and accessible world where out-of-box thinking,and collaboration is a norm.
Raft's core philosophy is Ubuntu: IAm, BecauseWe are. We support our
"nadi"
by elevating the other Rafters. We work as a hyper collaborative team where each team member brings a unique perspective, adding value that did not exist before. People make Raft special. We celebrate each other and our cognitive and cultural diversity. We are devoted to our practice of innovation and collaboration.
We're an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.
$70k-89k yearly est. 2d ago
Software Engineer, Public Sector
Scale Ai, Inc. 4.1
Software tester job in Washington, DC
Scale AI is seeking highly skilled and motivated Software Engineers to join our dynamic Federal Engineering team. As a part of this team, you will play a critical role in delivering high-impact AI-powered mission solutions for government customers. Our scalable and high-performance platform forms the foundation for these solutions, and your expertise will be instrumental in designing and implementing systems that can handle billions of data points with exceptional performance.
You will:
Design and implement scalable backend systems for Federal customers, leveraging Scale's modern and cloud-native AI infrastructure
Collaborate with cross-functional teams to define and execute the vision for backend solutions, ensuring they meet the unique needs of government agencies operating in secure environments
Develop distributed systems, data-intensive applications, and machine learning infrastructure to enable real impact for mission owners
Build robust and reliable backend systems that can serve as standalone products, empowering customers to accelerate their own AI ambitions
Participate actively in customer engagements, working closely with stakeholders to understand requirements and deliver innovative solutions
Contribute to the platform roadmap and product strategy for Scale AI's Federal business, playing a key role in shaping the future direction of our offerings
This role will require an active TS/SCI security clearance or the ability to obtain a security clearance.
Ideally you'd have:
Full Stack Development: Proficiency in both front-end and back-end development, including experience with modern web development frameworks, programming languages, and databases
Cloud-Native Technologies: Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and experience in developing and deploying applications in a cloud-native environment. Understanding of containerization (e.g., Docker) and container orchestration (e.g., Kubernetes) is a plus
Data Engineering: Knowledge of ETL (Extract, Transform, Load) processes and experience in building data pipelines to integrate and process diverse data sources. Understanding of data modeling, data warehousing, and data governance principles
Machine Learning Infrastructure: Familiarity with machine learning frameworks (e.g., TensorFlow, PyTorch) and experience in designing and implementing machine learning infrastructure. Understanding of model serving, monitoring, and deployment strategies is beneficial
Problem Solving: Strong analytical and problem-solving skills to understand complex challenges and devise effective solutions. Ability to think critically, identify root causes, and propose innovative approaches to overcome technical obstacles
Collaboration and Communication: Excellent interpersonal and communication skills to effectively collaborate with cross-functional teams, stakeholders, and customers. Ability to clearly articulate technical concepts to non-technical audiences and foster a collaborative work environment
Adaptability and Learning Agility: Willingness to embrace new technologies, learn new skills, and adapt to evolving project requirements. Ability to quickly grasp and apply new concepts and stay up-to-date with emerging trends in software engineering
Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position, determined by work location and additional factors, including job-related skills, experience, interview performance, and relevant education or training. Scale employees in eligible roles are also granted equity based compensation, subject to Board of Director approval. Your recruiter can share more about the specific salary range for your preferred location during the hiring process, and confirm whether the hired role will be eligible for equity grant. You'll also receive benefits including, but not limited to: Comprehensive health, dental and vision coverage, retirement benefits, a learning and development stipend, and generous PTO. Additionally, this role may be eligible for additional benefits such as a commuter stipend.
Please reference the job posting's subtitle for where this position will be located. For pay transparency purposes, the base salary range for this full-time position in the locations of San Francisco, New York, Seattle is:$184,000-$292,560 USDThe base salary range for this full-time position in the locations of Washington DC, Texas, Colorado is:$165,600-$263,304 USDThe base salary range for this full-time position in the location of Hawaii/St. Louis is:$138,000-$219,420 USD
PLEASE NOTE:
Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.
About Us:
At Scale, our mission is to develop reliable AI systems for the world's most important decisions. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Cisco, DLA Piper, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications.
We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status.
We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at . Please see the United States Department of Labor's
Know Your Rights poster
for additional information.
We comply with the United States Department of Labor's
Pay Transparency provision
.
PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants' needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.
$77k-108k yearly est. 2d ago
Senior Test & Evaluation Engineer - DoD/IC T&E Expert
ENS Solutions, LLC
Software tester job in Washington, DC
A service-disabled veteran owned IT consulting firm located in Washington, DC is seeking a professional with a Bachelor's degree and over 10 years of relevant experience. The job includes analyzing system requirements, supporting test and evaluation documentation development, and integrating with test organizations. Applicants must have an Active TS/SCI Clearance and a willingness to obtain a CI Poly. This role offers comprehensive medical coverage, 401k contributions from day one, and generous PTO.
#J-18808-Ljbffr
$77k-101k yearly est. 4d ago
Pncpl Software Engineer
Deltek, Inc. 4.8
Software tester job in Herndon, VA
08-Jan-2026
Principal Software Engineer
US Remote
10550BR
As the recognized global standard for project-based businesses, Deltek delivers software and information solutions to help organizations achieve their purpose. Our market leadership stems from the work of our diverse employees who are united by a passion for learning, growing and making a difference. At Deltek, we take immense pride in creating a balanced, values-driven environment, where every employee feels included and empowered to do their best work. Our employees put our core values into action daily, creating a one-of-a-kind culture that has been recognized globally. Thanks to our incredible team, Deltek has been named one of America's Best Midsize Employers by Forbes, a Best Place to Work by Glassdoor, a Top Workplace by The Washington Post and a Best Place to Work in Asia by World HRD Congress. **************
Business Summary
The Deltek Engineering and Technology team builds best-in-class solutions to delight customers and meet their business needs. We are laser-focused on software design, development, innovation and quality. Our team of experts has the talent, skills and values to deliver products and services that are easy to use, reliable, sustainable and competitive. If you're looking for a safe environment where ideas are welcome, growth is supported and questions are encouraged - consider joining us as we explore the limitless opportunities of the software industry.
Position Responsibilities
We are seeking a highly skilled and experienced C# Software Engineer to join our dynamic team. In this senior role, the developer will be responsible for leading complex software development projects, designing robust solutions, and mentoring junior developers. The ideal candidate will have a deep understanding of C#, .NET technologies, and software design principles, coupled with a proven track record of delivering high-quality software solutions.
Responsibilities:
Work closely with product managers, business analysts, and designers to gather requirements and translate them into technical solutions.
Stay current with evolving technologies, requirements, and processes, and adapt quickly to new developments
Lead the design and architecture of complex software systems, ensuring scalability, performance, and reliability.
Develop complex functionality and integrations, ensuring alignment with business requirements and technical standards.
Address and resolve complex technical issues, including performance optimization and debugging.
Take ownership of project deliverables, ensuring timely and high-quality execution.
Develop and review technical specifications and design documents.
Provide technical leadership and guidance to development teams, promoting best practices and coding standards.
Mentor junior and mid-level developers, conducting code reviews, and facilitating knowledge sharing.
AI-First Mindset Requirement:
This role requires embracing an AI-first approach to work, where GenAI and agentic AI tools are viewed as essential collaborators rather than optional supplements. We expect team members who naturally think in terms of AI-enhanced workflows, proactively seek opportunities to integrate intelligent automation, and demonstrate curiosity about leveraging AI to solve complex testing challenges more efficiently.
The ideal candidate approaches quality assurance challenges by first considering: "How can AI help me accomplish this faster and better?" while maintaining high standards for quality, security, and reliability. This mindset includes being comfortable with rapid AI tool evolution, eager to experiment with new AI capabilities for testing optimization, and committed to sharing AI-enhanced QA approaches with team members.
We value professionals who see AI as a productivity multiplier that enables focus on higher-value strategic testing and quality analysis work, rather than a replacement for human expertise and judgment.
Focus Areas:
AI Standards Development: Establish team guidelines for AI tool usage and quality standards
Cross-functional AI Collaboration: Work with non-technical stakeholders to implement AI solutions
AI Change Management: Lead teams through AI tool adoption and workflow changes
Innovation Identification: Spot emerging AI capabilities relevant to organizational goals
Qualifications
A college degree in Computer Science, Software Engineering, Information Systems, or a related field is required.
Minimum of 7 years of software development experience.
Expertise in C# programming, including advanced features and best practices.
Proficiency in the .NET Framework, with a strong understanding of its components, libraries, and tools, and demonstrated experience in using it to develop, deploy, and maintain high-quality software solutions.
Experience with development tools and environments, such as Visual Studio, TFS, or similar.
Strong understanding of software design patterns, object-oriented programming (OOP), and SOLID principles.
Proficient in SQL Server, Oracle or other relational databases, including writing complex queries, stored procedures, and performance optimization.
Proficiency in Object-Relational Mapping (ORM) tools and frameworks, such as Entity Framework.
Experience in leading development projects and mentoring teams.
Experience in writing and maintaining unit tests and using testing frameworks.
Experience working in Agile development environments and familiarity with Scrum.
Excellent problem-solving and analytical abilities.
Excellent in documenting code, processes, and systems to ensure clarity and maintainability.
Strong communication skills, with the capability to convey technical concepts to non-technical stakeholders.
Ability to work independently and collaboratively in a fast-paced environment.
Compensation Info
The U.S. salary range for this position is $91,000.00-$160,750.00. This range is subject to change as Deltek takes a number of factors into consideration when determining individual base pay, such as location, job-related knowledge, skills and experience. Certain roles are eligible for additional rewards, including incentive compensation and equity.
Benefits and perks listed here may vary depending on the nature of employment with Deltek. Employees have access to healthcare benefits, a 401(k) plan and company match, paid vacation time and holidays, well-living programs, short-term and long-term disability coverage, basic life insurance and tuition reimbursement.
Position Type
FT
Travel Requirements
10%
Compliance Requirements
Certain roles may have additional privacy, security and compliance requirements to the extent they support Costpoint GCCM or similar product offerings.
EEO Statement
Deltek, Inc. is an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status.
E-Verify Statement
Deltek, Inc., utilizes the E-Verify program with every potential new hire. This makes it possible for us to make certain that every employee who works for Deltek is eligible to work in the United States. To learn more about E-Verify you can call or visit their website by clicking the logo below. E-Verify is a registered trademark of the United States Department of Homeland Security.
Applicant Privacy Notice
Deltek is committed to the protection and promotion of your privacy. In connection with your application for employment with us at Deltek, it is necessary for us to collect, store and use information about you ("Personal Data") to administer and evaluate your application. We are the "controller" of the Personal Data you provide us and will process any such Personal Data in accordance with applicable law and the statements contained in this Employment Candidate Privacy Notice. Additionally, we have not sold and do not sell Personal Data you provide to us through the job application process.
$91k-160.8k yearly 2d ago
Front End Software Engineer
LMI Consulting, LLC 3.9
Software tester job in Tysons Corner, VA
Job ID 2025-13454 # of Openings 2 Category Information Technology Benefit Type Salaried High Fringe/Full-Time
LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.
Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors-helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.
Our team is laser-focused on creating cutting-edge RFID solutions for the DoD that bring passive and active RFID tech to life, solving tough integration challenges across global sites. If you're ready to dive in, take ownership, and ship real value, keep reading.
Responsibilities
The Opportunity
We're looking for a Frontend Software Engineer with strong React, Javascript, Typescript, CSS, and HTML skills to join our logistics app team. You'll work closely with product owners, designers, and fellow engineers to quickly iterate on features, improve performance, and build out a secure, scalable platform for real-world military and government users.
This role blends hands-on coding with architectural input, and you'll be exposed to everything from UI workflows to backend API logic to deployment automation.
What You'll Do
Build intuitive and responsive front-end experiences using React and modern component libraries.
Translate product and design requirements into clean, reusable UI components.
Participate in code reviews and contribute to best practices and documentation.
Collaborate across design, product, DevSecOps, and field teams to launch features quickly and securely.
Participate in rapid prototyping cycles while maintaining production-grade coding standards.
Write unit and integration tests to support automated testing/validation and code quality gates.
Troubleshoot bugs, squash performance bottlenecks, and help build towards FedRAMP and IL5 deployment requirements.
Qualifications
What We're Looking For
3+ years of relevant software engineering experience.
Proficiency in React, including component design, hooks, and modern front-end patterns.
Strong Javascript/Typescript background and solid understanding of HTML, CSS, and responsive design principles.
Experience with state management, REST APIs, and async data fetching.
Experience with frontend testing tools like Jest, Vitest, and React Testing Library.
Familiarity with secure software development practices and CI/CD pipelines (GitHub Actions, GitLab, etc).
Comfortable working in Agile or Lean environments, with rapid delivery cycles and direct user feedback loops.
US Citizenship with the ability to obtain and maintain a government security clearance. Active Secret or TS clearance preferred.
Bonus Points For:
Experience with Docker, Kubernetes, or containerized deployment pipelines.
Hands-on work with secure government environments (DoD, IL5+, FedRAMP).
Familiarity with AWS GovCloud.
Experience building logistics, supply chain, or asset tracking applications.
Exposure to message brokers like Kafka or RabbitMQ.
Certifications like Security+ and AWS Developer/Architect.
Past experience at a startup or in rapid-growth teams.
Target salary range: $100,000 - $165,000. Final compensation will be determined by a variety of factors including but not limited to your skills, experience, education, and/or certifications.
#LI-SH1
LMI is an Equal Opportunity Employer. LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities. LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, disability, age, protected veteran status, citizenship status, genetic information, or any other characteristic protected by applicable federal, state, or local law. If you are a person with a disability needing assistance with the application process, please contact
Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
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$100k-165k yearly 3d ago
Software Engineer
Expedition Technology
Software tester job in Herndon, VA
Are you passionate about developing innovative software solutions that can make a difference in our nation's defense and intelligence communities? Do you have experience in full-stack software engineering and a desire to work on cutting-edge projects that will challenge the status quo? If so, Expedition Technology (EXP) has stimulating opportunities for you to apply your skills.
If you join us, you will be welcomed to a team of engineers who work on applied research and development programs to design and develop software applications addressing our nation's most intricate defense and intelligence needs. Our work incorporates cutting edge machine learning research with RF signals data and wraps it into fully functioning software applications.
If you're an experienced software engineer who is passionate about building technology that makes a positive impact, apply today to join our expedition!
At Expedition Technology, you will:
Design and implement complex software solutions that support US defense and intelligence agencies
Integrate advanced machine learning algorithms into cutting edge software solutions
Develop software for specializations including radar, electronic warfare, sonar, SIGINT, RF geo-location, and image processing
Transition signal processing-based neural networks to field-ready, real-time software applications and systems
Collaborate with domain experts in small teams to build full stack systems from the ground up
Embrace cutting edge software tools and technologies and apply them to your solutions
Build extensible software that can be applied to multiple applications
What do you need to succeed?
United States citizenship and an active U.S. Government Secret security clearance or higher
BA/BS, MS and/or PhD degree in computer science, physics, applied mathematics, electrical engineering, or related technical discipline
Minimum, 4 years' experience with Python, Java or similar scientific computing languages
Experience defining, designing, and integrating architectures for signal processing systems
Ability to rapidly prototyping algorithm concepts and ideas
Experience making insightful decisions on software design solutions
Drive to continually learn and apply new software tools and design principles
Ability to translate customer requirements to determine development focus
Strong communication skills to convey complex technical concepts
Who is Expedition Technology?
Expedition Technology (EXP) designs, develops, and delivers innovative, advanced signal, image, and multi-INT solutions for the defense and intelligence communities. We leverage advanced algorithms, platforms, and technologies to solve our customers' most complex, demanding, and urgent C4ISR challenges. Our culture promotes individual growth and opportunity, prioritizes a collaborative team spirit, and invites the intellectually curious to creatively solve challenging problems. Headquartered in Northern Virginia's high-tech corridor, EXP is a rapidly growing, privately held, employee-owned company that pushes the boundaries of what is possible every day.
Interested in joining our team? Let's explore together.
To learn more about EXP and discover why we are an award-winning workplace, visit ourweb siteand follow us on LinkedIn.
Join Our Team and Enjoy Exceptional Benefits!
Expedition Technology (EXP) offers a flexible, self-directed benefits package that is designed to fit your individual needs.Here's a glimpse of the outstanding benefits you can enjoy when you join our team:
Company-paid medical, dental, and vision insurance
Generous Time Off: Enjoy 12 paid holidays, up to 33 days of PTO, and generous sick leave
Robust 401(k) Plan: Benefit from up to a 12% company contribution, including a 3% safe harbor, 6% match, and up to 3% additional as a form of profit sharing.
Student Loan Repayment: Take advantage of our unique option to reallocate a portion of your 401(k) match funds to repay student loans, helping you achieve financial freedom faster.
Paid Parental Leave: Six weeks of paid leave for the primary caregiver and 2 weeks of paid leave for the secondary caregiver for you to bond with your new family member.
Tuition Reimbursement: Pursue further education with up to $5,250/year available to support your continuous learning and growth.
Referral Bonus Program: Earn rewards for bringing talented individuals into our team.
Exclusive Entertainment Perks: Enjoy free tickets to sporting events, theater, concerts, and more, adding fun and excitement to your life.
Onsite Amenities: Stay fit and healthy with our free, onsite fitness center, active workstations featuring treadmill and bike desks, and enjoy our onsite cafeteria with reduced-cost options.
Inspiring Work Culture: Thrive in a collaborative, creative, and supportive culture where you are encouraged to push boundaries, take risks, and enjoy the rewards.
Join us and be part of a team that values your well-being and professional growth. Apply today and take the first step towards a fulfilling career with us!
EXP is proud to be an Equal Opportunity Employer that believes a diverse range of talent creates an environment that fosters creativity and innovation
.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, genetic information, or protected veteran status.
$71k-94k yearly est. 2d ago
Mission Software Engineer, Public Sector
Scale Ai, Inc. 4.1
Software tester job in Washington, DC
Scale AI is seeking a highly skilled and motivated Mission Software Engineer to join our dynamic Federal Engineering team. As a part of this team, you will play a critical role in supporting Scale's government customers by scoping and developing onsite solutions. Our scalable, high-performance platform is the foundation for these customer solutions, and your expertise will be instrumental in designing and implementing systems that can handle interactions with existing customer systems to help our products integrate into existing customer workflows.
You will:
Work directly with customers to understand their problems and translate those into features in Scale's platform.
Be open to >50% travel or relocation to a key customer geographic location.
Collaborate with cross-functional teams to define and execute the vision for backend solutions, ensuring they meet the unique needs of government agencies operating in secure environments.
Implement end-to-end data integrations, syncing customer's data to Scale's platform and back
Deploy and maintain Scale software at customer sites
Develop customer requested features and work closely with them to ensure that they win customer love.
Build robust and reliable backend systems that can serve as standalone products, empowering customers to accelerate their own AI ambitions.
Participate actively in customer engagements, working closely with stakeholders to understand requirements and deliver innovative solutions.
This role will require an active TS/SCI security clearance or the ability to obtain a security clearance.
Ideally you have:
Track record of success as a hybrid customer facing engineer, forward deployed software engineer, and ability to quickly adapt to different roles.
Prior experience developing with Python and JavaScript, or other modern software languages. Familiarity with Node and React is a plus.
Cloud-Native Technologies: Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and experience in developing and deploying applications in a cloud-native environment. Understanding of containerization (e.g., Docker) and container orchestration (e.g., Kubernetes) is a plus
Linux experience: Understanding of shell scripting, operating systems, etc
Networking experience: Understanding of networking technologies, configuration (ports, protocols, etc)
Data Engineering: Knowledge of ETL (Extract, Transform, Load) processes and experience in building data pipelines to integrate and process diverse data sources. Understanding of data modeling, data warehousing, and data governance principles
Problem Solving: Strong analytical and problem-solving skills to understand complex challenges and devise effective solutions. Ability to think critically, identify root causes, and propose innovative approaches to overcome technical obstacles
Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position, determined by work location and additional factors, including job-related skills, experience, interview performance, and relevant education or training. Scale employees in eligible roles are also granted equity based compensation, subject to Board of Director approval. Your recruiter can share more about the specific salary range for your preferred location during the hiring process, and confirm whether the hired role will be eligible for equity grant. You'll also receive benefits including, but not limited to: Comprehensive health, dental and vision coverage, retirement benefits, a learning and development stipend, and generous PTO. Additionally, this role may be eligible for additional benefits such as a commuter stipend.
Please reference the job posting's subtitle for where this position will be located. For pay transparency purposes, the base salary range for this full-time position in the locations of San Francisco, New York, Seattle is:$184,000-$292,560 USDThe base salary range for this full-time position in the locations of Washington DC, Texas, Colorado is:$165,600-$263,304 USDThe base salary range for this full-time position in the location of Hawaii/St. Louis is:$138,000-$219,420 USD
Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position, determined by work location and additional factors, including job-related skills, experience, interview performance, and relevant education or training. Scale employees in eligible roles are also granted equity based compensation, subject to Board of Director approval. Your recruiter can share more about the specific salary range for your preferred location during the hiring process, and confirm whether the hired role will be eligible for equity grant. You'll also receive benefits including, but not limited to: Comprehensive health, dental and vision coverage, retirement benefits, a learning and development stipend, and generous PTO. Additionally, this role may be eligible for additional benefits such as a commuter stipend.
The base salary range for this full-time position in the location of Honolulu, Hawaii is:$138,000-$219,420 USD
PLEASE NOTE:
Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.
About Us:
At Scale, our mission is to develop reliable AI systems for the world's most important decisions. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Cisco, DLA Piper, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications.
We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status.
We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at . Please see the United States Department of Labor's
Know Your Rights poster
for additional information.
We comply with the United States Department of Labor's
Pay Transparency provision
.
PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants' needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.
$77k-108k yearly est. 2d ago
Software Engineer
Deltek, Inc. 4.8
Software tester job in Herndon, VA
08-Jan-2026
ML/AI Engineer
US Remote
10573BR
As the recognized global standard for project-based businesses, Deltek delivers software and information solutions to help organizations achieve their purpose. Our market leadership stems from the work of our diverse employees who are united by a passion for learning, growing and making a difference. At Deltek, we take immense pride in creating a balanced, values-driven environment, where every employee feels included and empowered to do their best work. Our employees put our core values into action daily, creating a one-of-a-kind culture that has been recognized globally. Thanks to our incredible team, Deltek has been named one of America's Best Midsize Employers by Forbes, a Best Place to Work by Glassdoor, a Top Workplace by The Washington Post and a Best Place to Work in Asia by World HRD Congress. **************
Business Summary
The Deltek Engineering and Technology team builds best-in-class solutions to delight customers and meet their business needs. We are laser-focused on software design, development, innovation and quality. Our team of experts has the talent, skills and values to deliver products and services that are easy to use, reliable, sustainable and competitive. If you're looking for a safe environment where ideas are welcome, growth is supported and questions are encouraged - consider joining us as we explore the limitless opportunities of the software industry.
Position Responsibilities
Job Summary
As an ML/AI Engineer at Deltek, you will be responsible for developing and deploying advanced machine learning models to solve complex business challenges. You will build robust data pipelines, create production-ready ML services, and collaborate with cross-functional teams to deliver scalable solutions. This role offers the opportunity to work with large-scale enterprise data, implement cutting-edge ML techniques, and contribute to the continuous improvement of Deltek's AI-driven products.
Key Responsibilities:
Develop and deploy machine learning models for classification, regression, forecasting, and NLP tasks using production-grade code and best practices.
Build data pipelines for ML model training and inference; work with structured and unstructured data from multiple enterprise systems.
Implement model training workflows including data preprocessing, feature engineering, hyperparameter tuning, and model evaluation.
Create production-ready ML services with RESTful APIs for web and mobile applications; ensure proper error handling, logging, and monitoring.
Process large-scale datasets from enterprise ERP systems, including time-series data, transactional data, and unstructured documents.
Collaborate with data scientists to productionize research models and optimize for latency, throughput, and cost.
Participate in code reviews and contribute to the team's ML engineering practices; document solutions and share knowledge.
Support deployed models through troubleshooting, performance optimization, and implementing improvements based on production metrics.
Qualifications
Required Qualifications:
2-4 years of ML engineering experience with hands-on model development and production deployment.
Strong Python programming skills, including experience with scikit-learn, pandas, numpy; familiarity with PyTorch or TensorFlow.
Solid understanding of supervised and unsupervised learning, model evaluation, cross-validation, and feature engineering.
Experience building RESTful APIs (Flask, FastAPI, or similar); understanding of microservices architecture.
Proficiency in SQL; experience with data pipelines, ETL processes, and working with databases (PostgreSQL, MySQL, or similar).
Working knowledge of AWS, Azure, or GCP; experience with cloud storage, compute, and managed ML services.
Experience with Git workflows, agile methodologies, and working in cross-functional teams.
Bachelor's degree in Computer Science, Data Science, Mathematics, or a related technical field.
This position requires US Citizenship
Preferred Qualifications:
Exposure to NLP techniques, LLMs, embedding models, or vector databases.
Experience in B2B SaaS environments.
Why Join Deltek?
At Deltek, you will be part of a forward-thinking team that values innovation, collaboration, and professional growth. Our commitment to leveraging advanced AI capabilities empowers employees to solve meaningful problems and drive impactful results. Deltek offers a flexible work environment, opportunities for continuous learning, and a culture that fosters creativity and development. Join us to help shape the future of enterprise solutions with cutting-edge machine learning and AI technologies
Compensation Info
The U.S. salary range for this position is $63,500.00-$111,750.00. This range is subject to change as Deltek takes a number of factors into consideration when determining individual base pay, such as location, job-related knowledge, skills and experience. Certain roles are eligible for additional rewards, including incentive compensation and equity.
Benefits and perks listed here may vary depending on the nature of employment with Deltek. Employees have access to healthcare benefits, a 401(k) plan and company match, paid vacation time and holidays, well-living programs, short-term and long-term disability coverage, basic life insurance and tuition reimbursement.
Position Type
FT
Travel Requirements
No
Compliance Requirements
Certain roles may have additional privacy, security and compliance requirements to the extent they support Costpoint GCCM or similar product offerings.
EEO Statement
Deltek, Inc. is an Equal Opportunity / Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or protected veteran status.
E-Verify Statement
Deltek, Inc., utilizes the E-Verify program with every potential new hire. This makes it possible for us to make certain that every employee who works for Deltek is eligible to work in the United States. To learn more about E-Verify you can call or visit their website by clicking the logo below. E-Verify is a registered trademark of the United States Department of Homeland Security.
Applicant Privacy Notice
Deltek is committed to the protection and promotion of your privacy. In connection with your application for employment with us at Deltek, it is necessary for us to collect, store and use information about you ("Personal Data") to administer and evaluate your application. We are the "controller" of the Personal Data you provide us and will process any such Personal Data in accordance with applicable law and the statements contained in this Employment Candidate Privacy Notice. Additionally, we have not sold and do not sell Personal Data you provide to us through the job application process.
$63.5k-111.8k yearly 2d ago
Digital Signal Processing Software Engineer
Expedition Technology
Software tester job in Herndon, VA
Are you looking for an exciting opportunity to work with a dynamic team and make a difference in our defense and intelligence efforts? Expedition Technology (EXP) in Herndon, VA, is seeking highly motivated software engineers with a digital signal processing (DSP) background to join our team. If you join us, you will work a variety of programs in support of the US Department of Defense and Intelligence Community. The problems we solve are challenging and stimulating and our solutions create an impact on our National Security interests.
What do we look for? We're looking for team members who are:
Intellectually curious and are stimulated by researching new and advanced techniques and technologies in the areas of digital signal processing and machine learning
Eager to embrace investigating complex problems without obvious solutions
Motivated by applying apply groundbreaking research to create software and hardware products that get deployed in the real world
Happy working solo and as part of highly motivated, collaborative teams
Passionate about working meaningful programs that protect our nation's security and impact people's lives,
If this sounds like you, read on to see what you'll be doing as part of our team.
As a member of our collaborative team , you will:
Design and implement complex signal processing solutions that support US defense and intelligence agencies
Research and develop advanced machine learning algorithms and techniques in application areas including radar, electronic warfare, sonar, SIGINT, RF geo-location, and image processing
Create signal processing and machine learning models that process and understand signal data faster, more accurately, and more efficiently
Transition signal processing-based neural networks to field-ready, real-time software applications and systems
What do you need to succeed?
United States citizenship and an active Top Secret/SCI security clearance
BA/BS in electrical engineering, physics, applied mathematics, computer science, or related technical discipline
Strong communication skills to convey complex technical concepts
Ability to conduct literature reviews to determine state-of-the-art technologies, incorporate recent research, and apply it to current problem sets
Relevant, practical applied digital signal processing and communication theory experience
Interest in defining, designing, and integrating architectures for communication and/or radar systems
Experience creating, developing, and implementing signal processing solutions in complex systems
Ability to rapidly prototyping algorithm concepts and ideas
Programming experience in Python or similar scientific computing languages
Clearance Required: Top Secret/SCI
Who is Expedition Technology?
Expedition Technology (EXP) designs, develops, and delivers innovative, advanced signal, image, and multi-INT solutions for the defense and intelligence communities. We leverage advanced algorithms, platforms, and technologies to solve our customers' most complex, demanding, and urgent C4ISR challenges. Our culture promotes individual growth and opportunity, prioritizes a collaborative team spirit, and invites the intellectually curious to creatively solve challenging problems. Headquartered in Northern Virginia's high-tech corridor, EXP is a rapidly growing, privately held, employee-owned company that pushes the boundaries of what is possible every day.
Interested in joining our team? Let's explore together.
To learn more about EXP and discover why we are an award-winning workplace, visit ourweb siteand follow us on LinkedIn.
Join Our Team and Enjoy Exceptional Benefits!
Expedition Technology (EXP) offers a flexible, self-directed benefits package that is designed to fit your individual needs.Here's a glimpse of the outstanding benefits you can enjoy when you join our team:
Company-paid medical, dental, and vision insurance
Generous Time Off: Enjoy 12 paid holidays, up to 33 days of PTO, and generous sick leave
Robust 401(k) Plan: Benefit from up to a 12% company contribution, including a 3% safe harbor, 6% match, and up to 3% additional as a form of profit sharing.
Student Loan Repayment: Take advantage of our unique option to reallocate a portion of your 401(k) match funds to repay student loans, helping you achieve financial freedom faster.
Paid Parental Leave: Six weeks of paid leave for the primary caregiver and 2 weeks of paid leave for the secondary caregiver for you to bond with your new family member.
Tuition Reimbursement: Pursue further education with up to $5,250/year available to support your continuous learning and growth.
Referral Bonus Program: Earn rewards for bringing talented individuals into our team.
Exclusive Entertainment Perks: Enjoy free tickets to sporting events, theater, concerts, and more, adding fun and excitement to your life.
Onsite Amenities: Stay fit and healthy with our free, onsite fitness center, active workstations featuring treadmill and bike desks, and enjoy our onsite cafeteria with reduced-cost options.
Inspiring Work Culture: Thrive in a collaborative, creative, and supportive culture where you are encouraged to push boundaries, take risks, and enjoy the rewards.
Join us and be part of a team that values your well-being and professional growth. Apply today and take the first step towards a fulfilling career with us!
EXP is proud to be an Equal Opportunity Employer that believes a diverse range of talent creates an environment that fosters creativity and innovation
.
All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, genetic information, or protected veteran status.
$71k-94k yearly est. 5d ago
Backend Software Developer (Clearance Required)
LMI Consulting, LLC 3.9
Software tester job in Washington, DC
Job ID 2025-12810 # of Openings 1 Category Intelligence Benefit Type Salaried High Fringe/Full-Time
LMI is seeking a skilled mid to senior level Backend Software Developer to support a client in the Washington, DC metro area.
LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.
Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors-helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.
Responsibilities
In this role you will work directly with the architect, software developers, engineers, and data analysts to expand an existing framework of the enterprise version of our core modeling and simulation (M&S) software. Experience with Python and Java is a must, with knowledge of Gitlab CI/CD processes being a plus. You will also work with node.js and TypeScript when interacting with the front-end developers. This is a chance to use your skills to build and rapidly scale a micro-service-based architecture on a cloud solution. The software will support collaborative simulations and analysis for the warfighter and potentially many other areas of the U.S. Government. The successful candidate must enjoy working in a highly innovative fast-paced environment, where you not only answer difficult questions, but you also help formulate the questions themselves.
Further you will be an inovative and pivotal team meber supporting the following areas:
Rapidly developing code using best practices and test-driven-development in a fast-paced environment
Expanding existing code for micro-services in a distributed, elastic, environment
Breaking complex systems down into simple services for simulation and modeling of scenarios
Collaborating with other engineers to leverage feature development across projects
Actively participate in all agile sprint ceremonies
Demonstrating your developments to customers
Qualifications
Required:
Bachelor's degree in a STEM field with 7+ years of professional development experience or master's degree in a STEM field with 5+ years of professional development experience
Proven experience in an agile environment
Agile software development experience, with the ability to develop products both collaboratively and independently with minimal supervision
Ability to work across disciplines
Ability to give and take feedback
Self-start, follow-through, complete projects from start to finish
Active TS/SCI with full-scope polygraph
Advanced degree in related discipline
Experience using both Scrum and Kanban
Java: 5 year experience
Python: 5 year experience
TypeScript: 5 year experience
Desired:
Experience with Simulation software
LMI is an Equal Opportunity Employer. LMI is committed to the fair treatment of all and to our policy of providing applicants and employees with equal employment opportunities. LMI recruits, hires, trains, and promotes people without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, pregnancy, disability, age, protected veteran status, citizenship status, genetic information, or any other characteristic protected by applicable federal, state, or local law. If you are a person with a disability needing assistance with the application process, please contact
Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
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$78k-103k yearly est. 2d ago
Software Engineer, Infrastructure & Security
Scale Ai, Inc. 4.1
Software tester job in Washington, DC
Scale AI is seeking a highly skilled and motivated Software Engineer, AI Infrastructure & Security to join our dynamic Public Sector Engineering team. As a part of this team, you will play a critical role in delivering high-impact AI-powered mission solutions for government customers. Our scalable and high-performance platform forms the foundation for these solutions, and your expertise will be instrumental in designing and implementing systems that can handle billions of data points with exceptional performance.
You will:
Design and implement secure scalable backend systems for Public Sector customers, leveraging Scale's modern and cloud-native AI infrastructure.
Own services or systems and define their long-term health goals, while also improving the health of surrounding components
Improve our high engineering standards, tooling, and process
Collaborate with cross-functional teams to define and execute the vision for backend solutions, ensuring they meet the unique needs of government agencies operating in secure environments.
Participate actively in customer engagements, working closely with stakeholders to understand requirements and deliver innovative solutions.
Contribute to the platform roadmap and product strategy for Scale AI's Public Sector business, playing a key role in shaping the future direction of our offerings.
Ideally you'd have:
An active security clearance, and the ability to obtain a TS/SCI with CI Poly. This is a requirement and candidates will not be considered who do not hold this level of clearance
Full Stack Development: Proficiency in both front-end and back-end development, including experience with modern web development frameworks, programming languages, and databases. Experience with developing & delivering software to air-grapped & isolated environments is a plus.
Cloud-Native Technologies: Understanding of containerization (e.g., Docker) and container orchestration (e.g., Kubernetes) is desired. Familiarity with cloud platforms (e.g., AWS, Azure, GCP) and experience in developing and deploying applications in a cloud-native environment.
Security Focused: Experience with Federal Compliance frameworks, and requirements(e.g, Cloud SRG, FedRAMP, STIG Benchmarks, etc). Experience developing software & technical solutions that meet strict security & regulatory compliance requirements.
Problem Solving: Strong analytical and problem-solving skills to understand complex challenges and devise effective solutions. Ability to think critically, identify root causes, and propose innovative approaches to overcome technical obstacles.
Collaboration and Communication: Excellent interpersonal and communication skills to effectively collaborate with cross-functional teams, stakeholders, and customers. Ability to clearly articulate technical concepts to non-technical audiences and foster a collaborative work environment.
Adaptability and Learning Agility: Willingness to embrace new technologies, learn new skills, and adapt to evolving project requirements. Ability to quickly grasp and apply new concepts and stay up-to-date with emerging trends in software engineering.
Must be able to support work 3-4 days a week from the DC or STL office.
Compensation packages at Scale for eligible roles include base salary, equity, and benefits. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position, determined by work location and additional factors, including job-related skills, experience, interview performance, and relevant education or training. Scale employees in eligible roles are also granted equity based compensation, subject to Board of Director approval. Your recruiter can share more about the specific salary range for your preferred location during the hiring process, and confirm whether the hired role will be eligible for equity grant. You'll also receive benefits including, but not limited to: Comprehensive health, dental and vision coverage, retirement benefits, a learning and development stipend, and generous PTO. Additionally, this role may be eligible for additional benefits such as a commuter stipend.
Please reference the job posting's subtitle for where this position will be located. For pay transparency purposes, the base salary range for this full-time position in the locations of San Francisco, New York, Seattle is:$184,000-$259,440 USDThe base salary range for this full-time position in the locations of Washington DC, Texas, Colorado is:$165,600-$233,496 USDThe base salary range for this full-time position in the location of Hawaii/St. Louis is:$138,000-$194,580 USD
PLEASE NOTE:
Our policy requires a 90-day waiting period before reconsidering candidates for the same role. This allows us to ensure a fair and thorough evaluation of all applicants.
About Us:
At Scale, our mission is to develop reliable AI systems for the world's most important decisions. Our products provide the high-quality data and full-stack technologies that power the world's leading models, and help enterprises and governments build, deploy, and oversee AI applications that deliver real impact. We work closely with industry leaders like Meta, Cisco, DLA Piper, Mayo Clinic, Time Inc., the Government of Qatar, and U.S. government agencies including the Army and Air Force. We are expanding our team to accelerate the development of AI applications.
We believe that everyone should be able to bring their whole selves to work, which is why we are proud to be an inclusive and equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability status, gender identity or Veteran status.
We are committed to working with and providing reasonable accommodations to applicants with physical and mental disabilities. If you need assistance and/or a reasonable accommodation in the application or recruiting process due to a disability, please contact us at . Please see the United States Department of Labor's
Know Your Rights poster
for additional information.
We comply with the United States Department of Labor's
Pay Transparency provision
.
PLEASE NOTE: We collect, retain and use personal data for our professional business purposes, including notifying you of job opportunities that may be of interest and sharing with our affiliates. We limit the personal data we collect to that which we believe is appropriate and necessary to manage applicants' needs, provide our services, and comply with applicable laws. Any information we collect in connection with your application will be treated in accordance with our internal policies and programs designed to protect personal data. Please see our privacy policy for additional information.
How much does a software tester earn in Ashburn, VA?
The average software tester in Ashburn, VA earns between $62,000 and $102,000 annually. This compares to the national average software tester range of $61,000 to $100,000.
Average software tester salary in Ashburn, VA
$80,000
What are the biggest employers of Software Testers in Ashburn, VA?
The biggest employers of Software Testers in Ashburn, VA are: