Principal software engineer jobs in Ellicott City, MD - 6,407 jobs

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 #J-18808-Ljbffr

A leading non-profit policy institute is seeking a Director of Technology & Innovation Policy to manage its tech policy portfolio. The ideal candidate will have over three years of experience in a relevant policy field and possess strong writing and research skills. Responsibilities include proactive research and effective communication of complex policy issues. A commitment to sensible policy solutions is essential. The position is based in Washington, DC and offers competitive benefits including health coverage and a retirement savings plan. #J-18808-Ljbffr

A leading agricultural firm located in Washington, D.C. is seeking a savvy Public Policy Manager. This role involves working closely with government officials and stakeholders on issues that affect the business. Candidates should have over 12 years of experience in public policy, strong analytical skills, and an understanding of the Congressional process. The compensation ranges from $156,800 to $196,000, plus an annual bonus. Benefits include health plans, 401(k) matching, parental leave, and generous PTO. #J-18808-Ljbffr

A private equity-backed technology company in Bethesda, MD is seeking a Head of FP&A. This role involves leading budgeting, forecasting, and reporting processes, demanding strong financial modeling and reporting skills. The ideal candidate will have over 15 years of FP&A experience, preferably in tech or SaaS industries, and will thrive in a small, fast-paced environment. Competitive salary of $175-225K plus incentive compensation based on experience. #J-18808-Ljbffr

An engineering firm in Washington is seeking a Substation Physical Engineer with over 10 years of experience to join their Power Delivery team. This role requires proficiency in HV and MV Substation design, leadership skills, and the ability to work in a fast-paced environment. The base salary range is between $135,000 and $150,000, with eligibility for performance-based bonuses. Professional Engineering (P.E.) License is preferred or must be obtained within 12 months. #J-18808-Ljbffr

A leading construction firm is seeking a Senior Structural Technical Manager in Baltimore, MD. The role requires overseeing the engineering team, implementing industry standards, and providing mentorship to team members. The ideal candidate will have 15 years of experience in structural engineering and strong leadership skills. Proficient knowledge of CAD software and project management is essential for success in this position. Competitive compensation and opportunities for professional growth are offered. #J-18808-Ljbffr

A proposal management firm is seeking a Senior Proposal Professional in Washington, D.C. The role involves leading the entire proposal lifecycle for government RFPs and ensuring compliance with submission standards. Candidates must have over 7 years of experience, exceptional attention to detail, and strong writing skills. The position offers a competitive compensation package in a collaborative work environment, where you will directly impact the company's growth. #J-18808-Ljbffr

A leading engineering firm in Herndon, Virginia is seeking a Drainage and Stormwater Senior Technical Manager. The role involves managing multiple drainage and stormwater design projects while mentoring junior staff. The ideal candidate will have over 10 years of experience in civil engineering and a Professional Engineer license. Competitive compensation and an opportunity for growth are offered in this globally recognized firm. #J-18808-Ljbffr

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.

We have a client in Reston, VA, seeking a Lead Azure Cloud Engineer to play a pivotal role in designing, implementing, and optimizing their Azure cloud infrastructure. In this strategic position, you'll collaborate with enterprise technology leaders and cross-functional teams-development, operations, and security-to build a secure, scalable, and high-performing cloud environment. Requirements: Bachelor's degree in Computer Science, Engineering, or related field. 4+ years of experience as an Azure Cloud Engineer or similar role. Strong knowledge of Azure service models (Serverless, IaaS, PaaS, SaaS). Expertise in cloud security, compliance, and cost optimization. Azure certifications (minimum: Azure Administrator). Excellent problem-solving, troubleshooting, and collaboration skills. What You'll Do: Architect and manage scalable, secure Azure solutions across multiple environments. Ensure availability, performance, and security of all Azure resources. Develop and maintain Infrastructure as Code (IaC) using Terraform, Bicep, or ARM templates. Deploy and configure hybrid solutions integrating on-premises and cloud environments. Monitor and optimize infrastructure for cost efficiency and reliability. Troubleshoot and resolve complex system issues escalated from support or design phases. Stay ahead of emerging Azure technologies and best practices to drive innovation. Maintain comprehensive documentation-requirements, architecture diagrams, design specs, and test plans. Bonus: Experience with M365, Intune, PP&C, UEM, and IAM is highly valued. About Us: Endurance IT Services provides Managed IT Services, Cybersecurity Solutions, and IT Consulting to help businesses stay secure and productive. We also offer IT Staffing for Direct-Hire, Contract-to-Hire, and Contract roles, plus internal full-time positions. Note: Some opportunities may not be exclusive and can change as we work with clients but our goal is always to help candidates find the right job.

A consulting firm in Washington, D.C. is seeking an experienced Senior Consultant for their engineering department. The role involves planning and developing infrastructure projects, ensuring compliance with regulations, and offering analytical support to clients. Ideal candidates will have a B.A. or B.S. in computer science, experience in software engineering, and strong general programming skills. The position offers a competitive salary ranging from $75,000 to $100,000 annually. #J-18808-Ljbffr

10 + years of solid hands-on experience as a lead DevOPS Engineer · Expertise in AWS cloud Infrastructure such as EC2, Linux, S3, EKS / Kubernetes, RDS · Expertise in CI/CD tools (Jenkins, GitLab CI, CircleCI), configuration management tools (Ansible, Chef, Puppet), Artifactory and containerization technologies · Experience in Airflow & Python · Hands on experience in creating branches for build check in, Release / Deployment process, automation of build, release, across Development, Test and Production environments. · Strong scripting and automation skills, preferably with experience in Bash, Python, or similar languages. · Excellent troubleshooting and problem-solving skills with a knack for identifying and resolving complex technical issues. · Work Experience in Agile methodology and testing frameworks · Ability to work independently and as part of a collaborative team, effectively communicating technical concepts to both technical and non-technical stakeholders. Reviewing, creating, managing, performing engineering, design, testing, and deployment tasks on AWS Infrastructure and CI/CD related user stories. Be proactive in monitoring and applying required compliance upgrades to infrastructure, as necessary. Perform and/or lead others on production support, platform monitoring, job monitoring, troubleshooting and issue resolution. Mentor engineers on AWS environment, infrastructure, architecture, and design patterns. Perform lead role to business partners (product owner and team business analysts) on new work including estimates and proposed designs for new solutions. Supporting developers/teams as necessary to complete user stories. Ensuring Agile board is up to date on a daily basis

Are you enthusiastic about technology and eager to make an impact in the defense sector? Join us as a Software Engineering Intern for the summer of 2026 and gain practical experience with state-of-the-art technologies that safeguard our nation. At Expedition Technology (EXP), you'll have the chance to work on significant projects that enhance national security, collaborate with seasoned professionals, hone your skills, and contribute to solving real-world challenges. If you're excited about a dynamic and fulfilling internship where you'll be part of the action, apply now to be part of a team addressing the issues of tomorrow! What will you do as a summer intern at EXP? Learn & Develop: You'll delve into a real-world Agile software development environment where you will utilize tools such as Python, React, Docker, and Git to create forward leaning solutions Implement: You'll develop solutions to support our work in web development, machine learning and signal processing Collaborate: You'll engage with your team and other domain experts to design new features, prioritize work, and mitigate risks Additional details: Location: On-site at Expedition Technology's headquarters in Herndon, VA Duration: Full-time (40 hours/week), Summer of 2026 Compensation: $33.50/hr. Is this the right internship for you? To be qualified for an internship position you should have the following qualifications: United States citizenship is required for security clearance purposes Must be a currently enrolled student who is pursuing a college degree in computer science, electrical engineering, math, physics, or other STEM-related field Must be entering your final year of an undergraduate or graduate program with an anticipated graduation date of December 2026 or May 2027 Have proficiency in modern programming languages (Python preferred) Be familiar with command line and version control (Git) experience Demonstrate interest in software engineering (courses, clubs, projects, etc.) Interest in working in defense and/or intelligence related careers post-graduation Must be willing to undergo background investigation process for a US-government issued security clearance What's it like being a summer intern at Expedition Technology? Get a first-hand perspective from our 2025 summer intern team by reading this blog post. Still hungry for more information? Read about our work, our culture and our accoladeson our website and LinkedIn. About Expedition Technology (EXP) Positioned in Northern Virginia's tech hub, EXP is an innovative engineering company that crafts advanced solutions for the defense and intelligence sectors. We champion innovation, promote individual growth, and thrive on collaboration. We're committed to embracing diversity: At EXP, we believe in the power of diverse minds. All applicants will be considered without bias. We're an Equal Opportunity Employer that cherishes creativity sparked by varied backgrounds. 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.

Company - Our client is a leading cybersecurity services provider, trusted by some of the most recognized brands in the U.S. They partner closely with Fortune 500 enterprises to deliver cutting-edge identity, cloud, and security solutions. Known for their technical excellence and white-glove client service, they are consistently recognized as one of the top MSSPs in North America. Job Title - Senior Identity (Ping) Engineer Location - Tysons, Virginia (Hybrid - onsite 3 days per week) Role Type - 6-Month Contract (1,040 hours) Must Have Skills: 7+ years of Identity & Access Management (IAM) engineering and architecture experience 5+ years of hands-on experience with the full Ping Identity suite across enterprise and/or CIAM use cases Deep expertise with PingFederate, PingID, Ping Directory, and PingOne (Enterprise + Customer) Proven experience designing and implementing modern passwordless authentication (FIDO2/WebAuthn/Passkeys) at enterprise scale Expert-level understanding of IAM protocols (SAML, OAuth 2.0, OIDC, SCIM, LDAP) and demonstrated ability to lead large-scale Ping deployments Responsibilities and Job Details: Serve as the Ping Identity SME and platform owner across a large financial services enterprise Architect, design, deploy, and scale Ping Identity solutions for both workforce SSO and CIAM use cases Perform hands-on configuration across the Ping suite supporting on-prem, private cloud, and SaaS (PingOne) architectures Design and implement identity workflows using PingOne DaVinci or similar orchestration tools Lead enterprise-wide rollout of passwordless authentication (FIDO2/WebAuthn/Passkeys) Provide advanced troubleshooting and root cause analysis across Ping environments Drive integration with Azure Identity (Entra ID) and other IdP/IdM technologies Manage multiple concurrent IAM projects, meeting key milestones and delivering required documentation Communicate effectively with technical and executive stakeholders Scripting skills in Python, PowerShell, or Groovy are highly desired for automation Candidate must commit exclusively to this contract for its duration

A leading aerospace and defense company is seeking a full-time Corporate Software Engineering Director 1 to shape vision and strategy at the corporate level. The role involves establishing a centralized Software Engineering function, leading the Software Engineering Council, and partnering with sector leaders to enhance talent development. The qualified candidate should have a strong background in software engineering and management, with at least 12 years of experience and a current DOD Secret clearance required. This position is located in the continental U.S. near a Northrop Grumman facility. #J-18808-Ljbffr

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

A leading construction firm is seeking a Senior Structural Technical Manager in Baltimore, MD, to oversee technical development and team training. The ideal candidate will manage engineering processes, ensure compliance with industry standards, and promote innovation. A minimum of fifteen years in structural engineering is required, along with strong leadership and communication skills. This role offers a dynamic work environment with opportunities for professional growth. #J-18808-Ljbffr

A leading consulting firm in Washington is seeking a Senior Consultant to join their engineering department. This role involves planning, designing, and developing infrastructure projects while ensuring compliance with governmental regulations. Candidates should have a strong background in software development with a Bachelor's degree in computer science or related fields. The position offers a competitive salary range of $75,000 to $100,000 annually, and requires a minimum of four years of related experience. #J-18808-Ljbffr

Kimley-Horn's DC office is seeking a Substation Physical Engineer with 10+ years of experience to join their Power Delivery team! This is not a remote position. Responsibilities Perform conceptual and detailed HV and MV Substation Physical/Electrical design for utilities/substations (including basic layout, electrical arrangement, one line, three-line drawings, plan-section, grounding, AC and DC system drawings) Perform engineering studies and calculations Perform Quality Control reviews on substation physical design projects Assume the role of technical lead on projects with limited guidance Create and review bill of materials for substation physical projects Develop and review proposals, and scopes of work for smaller substation physical projects Plan and lead client meetings (or meeting sections) relating to physical design, as required Provide support for continued professional development of less experienced engineers in team, including technical guidance, and recommending training needs to the group Possess excellent communication skills and the ability to interact with the internal teams and clients to meet project objectives Develop leadership skills in preparation for future roles on the team Qualifications 10+ years of relevant engineering experience in Substation Physical Design Professional Engineering (P.E.) License (or ability to obtain within 12 months) Enjoys working in a fast-paced environment on multiple projects Proficiency in using industry-standard design software such as AutoCAD Experience with grounding studies/lightning protection and lighting studies Experience with bus calculation Experience with CDEGS Base Salary Range: $135,000- $150,000 Eligible for performance-based bonus compensation #J-18808-Ljbffr