Developer jobs in Bowie, MD

WHO WE ARE As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things and help fight climate change. Join us to lead the clean energy future. TOTAL REWARDS Constellation offers a wide range of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, we offer a bonus program, 401(k) with company match, employee stock purchase program comprehensive medical, dental and vision benefits, including a robust wellness program paid time off for vacation, holidays, and sick days and much more. Expected salary range of $127,800 to $142,000, varies based on experience, along with comprehensive benefits package that includes bonus, commission, and 401(k). LOCATION This is a hybrid position based in the Mid-Atlantic US. Up to 30% travel is required, to support projects concentrated in the Mid-Atlantic region. Candidates must reside in the territory to best support client site visits and other travel expectations. Additionally, occasional travel to the Baltimore, MD office, remote project sites and other Constellation offices will be required, for in-person meetings and collaboration, as requested by leadership. Our ideal candidate will reside in the Maryland / D.C. / Virginia area, in order to best accommodate regular travel needs. PRIMARY PURPOSE OF POSITION As Technical Sales Manager (TSM), you will lead project development and collaborate with customers to deliver energy solutions. You will use your expertise in building systems and project design to support sales for energy efficiency infrastructure projects. The Principal TSM identifies and develops Energy Conservation Measures and manages technical aspects from project conception to contract award. This customer-facing role balances technical oversight with client engagement to drive business objectives. PRIMARY DUTIES AND ACCOUNTABILITIES Serve as the technical subject matter expert throughout the project development and sales cycle, focusing on building systems, mechanical and engineering design/performance, systems interactions, and utility rates/tariffs. Expand project scopes by integrating Energy Efficiency, Sustainability, and Resiliency offerings beyond traditional measures. Collaborate with the Business Development Manager and cross-functional teams to evaluate the technical and financial feasibility of project opportunities. Provide technical expertise and support during customer presentations led by the Business Development Manager. Coordinate activities related to legal review of documentation and financing procurement. Evaluate utility profiles and facility infrastructure to establish project direction, scope, and financial elements, including development of accurate financial pro formas and technical scopes of work. Conduct initial facility and infrastructure assessments to identify Energy Conservation Measures (ECMs), infrastructure improvements, and corresponding energy, operational, and financial benefits. Lead cross-functional teams through the development of all required project deliverables from initial qualification to contract award. Identify and align appropriate resources to define project scope, develop cost and savings models, and complete all related documentation. Negotiate scope and pricing with subcontractors to ensure alignment with project goals. Work collaboratively with cross-functional teams to develop and manage project deliverables, budgets, and schedules, ensuring timely completion. Oversee resource allocation and associated expenditures. Throughout the sales cycle, coordinate efforts to secure all necessary project approvals. Conduct quality control reviews of all project deliverables and supporting work products to ensure accuracy and completeness. MINIMUM QUALIFICATIONS Bachelor's degree in Engineering and 8-years of project development or sales engineering experience developing facilities-based or building infrastructure projects or equivalent combination of education and relevant experience Demonstrated technical knowledge and understanding of building systems and technologies, and the interaction of building systems Experience performing cost savings analysis and leveraging customers' operational data to gauge value of potential project engagement opportunities Demonstrated technical writing skills combined with strong financial and business acumen, including the ability to develop project pro formas and detailed scope-of-work documentation Superior interpersonal and communication skills, including the ability to present complex solutions to both technical and non-technical audiences Proven ability to develop, cultivate, and leverage professional networks and business relationships, including engineering firms and contractors Experience managing project teams and internal peer groups, to meet project deliverable goals Ability to obtain all required security clearances Proficiency in speaking, reading, and writing English Microsoft Office Suite experience PREFERRED QUALIFICATIONS Experience developing energy efficiency projects under Energy Savings Performance Contract (ESPC), Energy as a Service (EaaS), Utility Energy Savings Contract, and/or GSA Schedule 84 Contract programs Experience with cost estimating and building modeling software RSMeans, eProject Bulider, Trane TRACE & Energy Star Professional Engineering (PE) registration, Certified Energy Manager (CEM) and/or LEED Accreditation Certified Energy Auditor (CEA) Federal project experience is preferred for this position. In depth knowledge of mechanical, electrical, and building automation controls systems. TS/SCI or secret clearance is a plus.

MANTECH seeks a motivated, career and customer-oriented Senior CNO Developer to join our team in Annapolis Junction, Maryland. We're looking for a Senior Capability Developer to join our elite team. In this role, you'll apply your deep technical expertise to analyze, reverse-engineer, and develop mission-critical capabilities that directly support national security objectives. You will be a key player in a fast-paced environment, tackling unique challenges at the intersection of hardware, software, and embedded systems. Responsibilities include but are not limited to: Develop custom software tools and applications using Python, C, and Assembly, focusing on embedded and resource-constrained systems. Conduct rigorous code reviews to ensure the quality, security, and performance of developed software. Reverse engineer complex hardware and software systems to understand their inner workings and identify potential vulnerabilities. Perform in-depth vulnerability research to discover and analyze weaknesses in a variety of targets. Collaborate with a team of skilled engineers to design and implement innovative solutions to challenging technical problems. Minimum Qualifications: Bachelor's degree and 12 years of experience; or, a high school diploma with 16 years of experience; or, an Associate's degree with 14 years of experience. A Master's degree may substitute for 2 years of experience, and a PhD may substitute for 4 years of experience. Must have 7 years of position-relevant work experience Proficiency in programming and application development. Strong scripting skills, particularly in Python, C, and Assembly. Deep expertise in managing, configuring, and troubleshooting Linux. Experience in embedded systems. Experience in reverse engineering and vulnerability research of hardware and software. Experience in code review. Preferred Qualifications: Experience in CNO (Computer Network Operations) Development. Experience in virtualization. Knowledge of IoT (Internet of Things) devices. Experience with Linux Kernel development and sockets. Knowledge of integrating security tools into the CI/CD (Continuous Integration/Continuous Delivery) pipeline. Networking skills. Clearance Requirements: Must have a current/active Top Secret/SCI clearance. Physical Requirements: The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. To be eligible for this position, you must be a U.S. Person, defined as a U.S. citizen, permanent resident, Asylee, or Refugee. Note on Cleared Roles: If this position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. Vantor is currently seeking a cleared to join our team. This role will be performed in our Vantor facility located in Herndon, Virginia. As a Vantor team member, you will have the opportunity to closely support our mission partners, and your work will have direct mission impact. In this role, you'll work closely with other software developers as well our infrastructure and cybersecurity teams leveraging open-source tools to create and maintain a diverse range of applications served out to thousands of users. About Us: We are a multi-faceted software development and systems administration team working to build and maintain software applications backed by a self-managed, on-prem private cloud and big data stack, housing over 15 petabytes of data. Our diverse background of experience in mission support and software development serves as a catalyst to solve unique and challenging technical problems in support of special operations analysts and their on-going activities. Rapid development and frequent, iterative feedback are core to our delivery approach, anchored by a need to work quickly in support of our mission customers What You'll Be Doing: Developing web applications for real-time query and analysis of our petabyte-scale data store, creating distributed analytics purpose-built to support our mission partners, and helping to construct new and maintain existing data pipelines tasked with automatically retrieving and ingesting data. Your Career: We're very serious about professional development and continuing education. We offer everyone the opportunity to define their own career trajectory. Supporting our people in the pursuit of becoming true experts in their craft enables not only individual growth but also the collective team to have a high degree of mission impact. We strive to create an environment where team members can do their best work. We provide resources to support learning, set aside time for dedicated professional development and offer benefits that enrich our team members' lives. Minimum Requirements: Must be a US citizen. Current Top Secret security clearance w/ SCI Eligibility and willing to get a CI poly. Bachelor's degree in Computer Science, Information Systems, Software Engineering or a related field (4 additional years of experience may be substituted for a Bachelor's degree. A Master's degree may count as an additional 2 years of experience.). 5 years demonstrated experience with programming, design, and development. In-depth knowledge in Python, Java, or similar programming language. Working knowledge of containerization (Docker, Podman) and container orchestration (Kubernetes, Nomad, etc.). Experience with ORM software (Django, SQLAlchemy, Hibernate, etc.) Working knowledge of Linux operating systems (navigating the filesystem, common management commands, etc.) Understanding of TCP/IP networking and working knowledge of remote system workflows (SSH, port forwarding, server/client architecture, etc.) Exposure to building and supporting solutions in a cloud like environment (such as OpenStack). Working knowledge of agile software development practices and tools, such as GitLab. Must be able to work on-site in Hendon, VA. Preferred Qualifications: Experience deploying, maintaining, and utilizing an Elasticsearch cluster. Experience with Spark. Experience with Hadoop (HDFS, YARN). Experience using Python web frameworks (Django, FastAPI, etc.). Experience with front-end development using React, Angular, or other JS framework. API Rest Framework development/maintenance. Data flow orchestration using Nifi or similar. Experience with provision and configuration management tools such as Ansible, Terraform, or similar. You are a creative and driven problem-solver who wants to apply breakthrough technologies to support a platform actively used by thousands of users supporting mission. Strong verbal, written, and organizational skills. #cjpost #LI-CJ1 #LI-Onsite Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate's starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range. ● The base pay for this position within the Washington, DC metropolitan area is: $113,000.00 - $188,000.00 annually. For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range. Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: ****************************** The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. The date of posting can be found on Vantor's Career page at the top of each job posting. To apply, submit your application via Vantor's Career page. EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.

Who We Are As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things and help fight climate change. Join us to lead the clean energy future. Total Rewards Constellation offers a wide range of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, we offer a bonus program, 401(k) with company match, employee stock purchase program comprehensive medical, dental and vision benefits, including a robust wellness program paid time off for vacation, holidays, and sick days and much more. Expected salary range of $100,800 to $112,000, varies based on experience, along with comprehensive benefits package that includes bonus, commission, and 401(k). Primary Purpose of Position The Technical Sales Manager (TSM) provides building-systems knowledge & development/design expertise in support of sales efforts for Energy Efficiency focused Infrastructure Renewal and Building Upgrade & Improvement projects. The Senior TSM will lead identification and development of Energy Conservation Measures. This role will act as a Project Developer / Sale Engineer, managing the technical aspects of project development from qualification/conception to contract award. The TSM plays a critical role in supporting the early-stage qualification & development of energy efficiency project opportunities, balancing customer engagement with technical expertise to achieve business objectives. Primary Duties and Accountabilities Serve as the technical subject matter expert throughout the project development and sales cycle, focusing on building systems, mechanical and engineering design/performance, systems interactions, and utility rates/tariffs. Collaborate with the Business Development Manager and cross-functional teams to assess and qualify the technical and financial feasibility of project opportunities. Provide technical support during customer presentations. Conduct initial facility and infrastructure assessments to identify Energy Conservation Measures (ECMs), infrastructure improvements, and corresponding energy, operational, and financial benefits. Evaluate utility profiles and facility infrastructure to establish project direction, scope, and financial elements, including development of accurate financial pro formas and technical scopes of work. Lead cross-functional teams to develop all required project deliverables from initial qualification through contract award. Manage resource alignment, cost and savings modeling, subcontractor negotiations, and quality control reviews. Expand project scopes by integrating Energy Efficiency, Sustainability, and Resiliency offerings beyond traditional measures. Oversee legal documentation reviews, financing procurement, and coordination of all necessary project approvals. Manage project budgets, schedules, and resource allocations in collaboration with internal stakeholders to ensure deliverables are completed on time and within scope. Minimum Qualifications Bachelor's degree in Engineering and 3-5 years of project development or sales engineering experience developing facilities-based or building infrastructure projects or equivalent combination of education and relevant experience Demonstrated technical knowledge and understanding of building systems and technologies, and the interaction of building systems Experience performing cost savings analysis and leveraging customers' operational data to gauge value of potential project engagement opportunities Demonstrated technical writing skills combined with strong financial and business acumen, including the ability to develop project pro formas and detailed scope-of-work documentation Proven ability to develop, cultivate, and leverage professional networks and business relationships, including engineering firms and contractors Proficiency in speaking, reading, and writing English Advanced interpersonal skills, communications skills, and presentation skills up to corporate leadership audience Ability to obtain all required security clearances Preferred Qualifications Experience leading infrastructure-based building projects, including managing cross-functional teams and internal stakeholders to successfully meet project deliverables Experience developing energy efficiency projects under Energy Savings Performance Contract (ESPC), Energy as a Service (EaaS), Utility Energy Savings Contract, and/or GSA Schedule 84 Contract programs Experience with cost estimating and building modeling software RSMeans, eProject Bulider, Trane TRACE & Energy Star Professional Engineering (PE) registration, Certified Energy Manager (CEM) and/or LEED Accreditation Certified Energy Auditor (CEA)

Support Engineer We are seeking an experienced Support Engineer to join our FILLIP development team on a contractor basis. This hybrid role bridges user support and development, serving as the technical escalation point for complex user issues while maintaining and improving our test infrastructure. You will perform deep technical troubleshooting, analyze logs across our cloud infrastructure, implement and execute test strategies, and drive bug fixes. When support workload permits, you'll contribute to testing automation and software quality initiatives. This role is ideal for a hands-on engineer who thrives in both reactive problem-solving and proactive quality improvement. Key Responsibilities Technical Support & User Engagement: Serve as the primary escalation point for complex, technically challenging user issues that exceed standard Product Management support capabilities; work directly with users to understand problems, communicate findings, and guide them through resolutions Log Analysis & Debugging: Perform detailed analysis using Splunk and CloudWatch to diagnose issues, identify root causes, and trace system behavior Bug Fixes & Implementation: Implement bug fixes and minor code changes based on findings from user reports, log analysis, and testing Test Strategy & Automation: Design, implement, and maintain comprehensive automated testing strategies, including unit tests, integration tests, and end-to-end testing Testing Execution: Execute manual and automated testing to validate fixes, identify regressions, and ensure system reliability Documentation & Communication: Document issues, resolutions, and test results; communicate findings clearly to both technical and non-technical stakeholders Proactive Quality Improvements: When support workload permits, identify opportunities to improve test coverage, automate repetitive testing tasks, and reduce technical debt Required Qualifications 5+ years of software development experience, with demonstrated expertise in Python Strong proficiency in PostgreSQL and relational database concepts Solid understanding of AWS ecosystem (EC2, ECS, S3, RDS, Aurora, Lambda) Hands-on experience with application logging and log analysis tools (Splunk and CloudWatch) Demonstrated experience designing and implementing test strategies and automated testing frameworks Strong problem-solving skills and ability to investigate complex technical issues methodically Excellent written and verbal communication skills Ability to work autonomously and adapt to shifting priorities between support and development work Technical Skills Backend: Python Databases: PostgreSQL (required), basic relational database design Cloud: AWS proficiency across EC2, ECS, S3, RDS, Aurora, Lambda Logging & Monitoring: Splunk, CloudWatch Testing: Test automation frameworks, test design methodologies, CI/CD integration Frontend (Optional): VueJS or similar frameworks

MANTECH seeks a skilled and innovative Senior CNO Developer to join our team in Hanover, MD. In this role, you will contribute to the development of mission-critical cyber capabilities, drive excellence in CNO development and lead efforts in advanced Computer Network Operations (CNO). You'll be part of a dynamic team working on next-generation solutions that safeguard national security systems. Responsibilities include but are not limited to: Designing and developing new hardware- or software-based Computer Network Operations (CNO) capabilities Managing the design, development, documentation, testing, and debugging of software applications and systems Applying expert knowledge of network and security concepts to support capability development Communicating status updates and technical progress to leadership and stakeholders Ensuring software quality and compliance with development standards Minimum Qualifications: High school diploma and 8+ years of technical work experience, or BS degree and 4+ years of technical work experience, or MS Degree and 2+ years of technical work experience, or PhD and 0+ years of relevant experience Experience in Python and C/C++ programming languages Experience with troubleshooting and debugging Experience with low-level system internals across one or more platforms (e.g., Windows, Unix, Mobile, or network devices) Experience with networking protocols (TCP/IP) and socket-level programming Experience with developing CNO capabilities Experience in managing and leading development teams Preferred Qualifications: Experience in software analysis or reverse engineering Understanding of assembly language programming concepts Familiarity with unit testing frameworks and practices Experience using Atlassian tools (JIRA, Confluence, Crucible) Clearance Requirements: An active/current TS/SCI with Polygraph is required. Physical Requirements: Must be able to remain in a stationary position at least 50% of the time.

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Development Engineer II Who is Mastercard? Mastercard is a global technology company in the payments sector. We power payments and provide products and services for individuals and industries all around the world. Our people, technology, data and brand provide the capabilities that drive our success. We believe in connecting people to priceless possibilities. As a company, we know that our success is driven by the skills, experience, integrity and mindset of the talent we hire. By building an inclusive, world-class culture, our employees have once-in-a-career opportunities to be a part of teams that have a greater impact on our community and our world. We invite you to join our team to find out how you too can start something priceless. Program Overview [ CCE]Mastercard's Commercial Solutions team is a rapidly growing organization with responsibilities to deliver innovative solutions to help our customers grow and expand their business. Focused on thinking big and scaling fast around the globe, this dynamic team is responsible for end-to-end solutions for a diverse global customer base. We are seeking a Senior Software Engineer to play a pivotal role in a cross-functional development team within the Commercial Solutions organization. Role: • A hands-on full stack engineer that can code and build high quality secure front end and REST API/backend that is modular, functional, and testable. • Contribute to all parts of the software's development including design, development, test, deployment, support, documentation, configuration • Build performant, scalable and secure web applications. • Follow given directions and procedures in software delivery tasks (code development, test, deployment) • Provide guidance and direction on systems and web application architecture and system design. • Guide and coach less experienced engineers. • Focus on user-centered design and problem solving • Participate and drive design, technical and code reviews. • Implement coding standards and approaches. • Promote an Agile approach to software development. Insist on a culture of continuous integration and delivery, automation and minimizing blast radius. • Demonstrate active learning and sharing of software practices via Guild/Engineering community initiatives All About You: • Successfully designed and developed externally facing web applications utilizing modern single page application frameworks. Good knowledge of Spring, Spring Data JPA, REST and other frameworks • Full stack developer with ability to write secure code in backend & frontend programming languages (Java, JavaScript, Angular, SQL) and familiar with secure coding standards and vulnerability management • Possess an understanding of multi-tier web development; including knowledge of server-side technologies and databases. • Passion for improving code quality using approaches such as unit and end to end testing. • Understanding of web application optimizations such as progressive web apps, web workers, browser repaints and reflows, performance and memory optimizations, debugging leaks, caching, flame graphs. • Experience and knowledge of authentication and authorization workflows using concepts like JWT. • Deep knowledge of continuous integration and delivery and toolsets that provide this ability. • Understanding of agile principles and methodologies. • Use and understand Git based source control systems. • Previous experience implementing and complying with ADA and WCAG requirements. • Strong analytical and excellent problem-solving skills Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations. Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD

-----------ONLY W2-------------ONLY W2-------------ONLY W2--------- Title: Java Full Stack Developer Duration: 12 Months Contract to hire Job Description: Terms of Employment 12 months contract with potential to hire Remote at Baltimore, MD 1-2 days onsite per month. Open to candidates from surrounding states or from the EST/CST time zones, provided they can travel onsite at their own expense when requested. Overview We're looking for a skilled Full Stack Developer to join our dynamic team and help build scalable, cloud-native web applications on AWS. You'll work across the stack-from front-end interfaces to back-end services-using a modern technology suite in a Kubernetes-based environment. This role blends hands-on development with architectural thinking, and emphasizes performance, security, and maintainability. Our platform is built on key principles: API-First Design, Event-Driven Communication, Security by Design, Separation of Concerns, Scalability, and Observability Responsibilities Design, develop, and maintain full stack applications using TypeScript, React, and Node.js Build and optimize RESTful APIs following API-First Design principles Implement event-driven communication using Redis Streams Integrate role-based access control (RBAC) across the application stack Ensure clear service boundaries and maintain Separation of Concerns Develop horizontally scalable services and data stores to support growth Enhance performance through caching strategies using Amazon ElastiCache (Redis) Implement logging, monitoring, and tracing using tools like CloudWatch or Prometheus Deploy and manage applications in Kubernetes environments via Amazon EKS Collaborate with cross-functional teams to define, design, and deliver new features Write clean, maintainable, and well-documented code following best practices Participate in code reviews, testing, and debugging to ensure high-quality deliverables Contribute to architectural decisions aligned with platform principles Required Skills & Experience Bachelor's degree in Computer Science, Engineering, or related field (or equivalent experience) 8+ years of experience in full stack development with TypeScript, React, and Node.js Proven, expert-level experience with TypeScript for large-scale application development. Expert proficiency in CSS for advanced styling and interface design. Strong experience building RESTful APIs and working with event-driven systems Hands-on experience with Aurora PostgreSQL and DynamoDB Familiarity with Redis and caching strategies Experience deploying applications on AWS using Amazon EKS and Kubernetes Solid understanding of containerization, orchestration, and horizontal scaling Knowledge of RBAC and cloud-native security best practices Proficient in Git and CI/CD pipelines Experience with observability tools (e.g., CloudWatch, Prometheus) Strong problem-solving skills and attention to detail Excellent communication and collaboration skills Preferred Skills & Experience Experience with microservices architecture and related components (e.g., API gateways, workflow engines, messaging systems) Familiarity with Redis Streams for asynchronous communication AWS certifications (e.g., Developer, Solutions Architect) Experience with GraphQL and advanced API design Familiarity with infrastructure-as-code tools (e.g., Terraform, AWS CDK) Knowledge of security best practices for cloud-native applications Sincerely, Preetam Raj Lead Technical Recruiter nTech Workforce Inc. D: ************ EXT: 726 E: ************************** preetam(at)ntechworkforce(dot)com

Systecon provides industry leaders world-wide with the capability to excel in optimization and decision-making, enabling clients to design, develop, procure and implement solutions that are cost effective throughout the life cycle. Our analytics platform for predictive analytics, optimization, simulation and cost analysis, makes it possible to optimize and analyze any scenario, from small conceptual studies to the largest and most complex and demanding technology programs in the world. Systecon has the expertise, know-how and experience from hundreds of projects and applications, providing clients with guidance, methodology, training, and support, to successfully manage complex systems. Being a small business allows us to have a tight-knit, collaborative, family-like culture across our company. Every member of our team makes an impact to our customers and our organization every day. Having the ability to avoid red-tape and bureaucracies that often come along with working at a large organization often feels like a breath of fresh air for our team members with prior experiences and allows us to always move at a fast pace. We pride ourselves on being a great place to work where we can have fun while accomplishing our customer's and company's objectives at the same time. Job Overview We are seeking a versatile Software Developer / Full Stack Engineer with Digital Operations experience to join our development team. This hybrid role combines full lifecycle software development-front-end and back-end-with digital operations support for our external websites and marketing platforms. The ideal candidate is passionate about modern web development, rapid prototyping, cloud environments, and end-user interaction. You'll build and maintain web applications using modern JavaScript frameworks (Vue.js or React), Python (FastAPI or equivalent), REST APIs, and relational databases. You will also manage site operations, content updates, analytics, and digital asset workflows across our public-facing websites. If you thrive in a fast-paced environment, enjoy solving complex problems, and can work comfortably across development and digital operations, we encourage you to apply. Core Responsibilities Software Development Lead full-stack development across the software lifecycle-from concept and design through deployment and sustainment. Rapid application prototyping, including gathering requirements and conducting proofs of concept. Implement responsive and user-friendly front-end interfaces using Vue.js or React, HTML5, and CSS3. Develop, maintain, and enhance back-end software using Python (FastAPI) and integrate with APIs. Design RESTful API integrations (REST, JSON), connect applications to backend services, and manage data flows. Create and manage database architectures and schemas (PostgreSQL or similar relational database). Develop and execute automated test plans using Vitest, Playwright, or comparable tools. Build, deploy, and troubleshoot applications in containerized environments (Docker). Debug, refactor, and improve existing applications and scripts. Participate in technical design discussions with cross-functional teams. Digital Operations & Web Platform Support Maintain and operate company marketing/brand websites (Squarespace, Webflow, or similar CMS). Manage domains, hosting environments, SSL certificates, redirects, and plugin updates. Integrate media tools into brand websites (podcast hosting platforms, streaming/recording tools). Oversee site performance, analytics dashboards (GA4), SEO basics, RSS feeds, and accessibility compliance. Troubleshoot and resolve technical issues (uploads, site errors, content embedding). Maintain digital asset structure, backups, and version control. Support digital marketing workflows: landing pages, blogs, social updates, newsletters, campaigns. Collaborate on creative assets (graphics, thumbnails, templates) using Canva or similar tools. Required Qualifications Education and Experience: Bachelor's degree in Computer Science, Information Systems, or a related field and 1+ years of experience working in Agile environments, with proven hands-on experience in rapid prototyping, troubleshooting and enhancing applications, collaborating with cross-functional teams (design, marketing, product owners), and managing digital content platforms (e.g., Webflow, Squarespace, CMS). Technical Proficiency: Front-End Development Proficiency in modern JavaScript frameworks, preferably Vue.js or React. Strong command of HTML5, CSS3, and responsive UI design. Back-End Development Hands-on experience developing or maintaining applications using Python (FastAPI preferred). Knowledge of REST API development and integration with APIs (REST/JSON). Databases & Data Architecture Proficiency with relational databases (PostgreSQL preferred). Ability to design and manage database schemas, queries, and integrations. Testing & DevOps Experience writing automated tests using tools such as Vitest, Playwright, or similar. Experience deploying and troubleshooting applications using Docker. Understanding of cloud environments and CI/CD workflows. Digital Operations & Web Presence Experience managing website hosting, content operations, and updates via platforms such as Webflow or Squarespace. Familiarity with web performance, analytics, and basic SEO (GA4, SSL, RSS feeds, redirects). Ability to integrate third-party content platforms (e.g., podcast hosting or media tools). Professional Attributes Self-Starter and Autonomous: Ability to balance competing priorities between engineering tasks and digital operations responsibilities without direct supervision. Ownership mindset - proactive, accountable, and committed to high-quality delivery. Communication: Strong verbal and written communication skills to collaborate with the end user as well as technical and non-technical staff. Other U.S. Citizen Willingness to undergo a background check and drug screening Nice-to-Haves Master's degree Security clearance Experience with Go, R, or other programming languages. Familiarity with Git or other version control platforms. Experience with Canva or multimedia content workflows. Understanding of analytics tracking, paid campaigns, SEO strategy, and/or audience engagement tools. Experience integrating or managing podcast platforms (Buzzsprout, Podbean, or Captivate). Benefits Package: Health and Dental Insurance for the employee and their dependents with no monthly premium charged to the employee (Systecon pays the entire monthly premium). 401(K) Life Insurance plan 15 days of PTO a year Dependent Care Flexible Spending Account Commuting stipend Access to fitness center at our Arlington, VA office Tuition Assistance Program 9-80 work schedule (every other Friday is an off day)

Clearance Required: Top Secret/SCI with Polygraph Seeking an experienced Software Engineer who will support mission-critical systems for a Federal customer at Fort Meade, Maryland. This entry-level role focuses on developing and maintaining Java-based applications in a secure environment. The engineer will work closely with senior developers and system engineers to deliver reliable and scalable software solutions. Key Responsibilities · Design, develop, test, and maintain Java applications. · Participate in software development lifecycle activities including requirements analysis and design. · Write clean, efficient, and well-documented code. · Collaborate with cross-functional teams to troubleshoot and resolve issues. · Support integration and deployment of software in secure environments. Qualifications Education: Bachelor's degree in Computer Science, Software Engineering, or related field. Experience: 4+ years of experience in software development, preferably in Java. Preference: Java certification or relevant coursework preferred. Skills: · Proficiency in Java programming language. · Understanding of object-oriented design and development. · Familiarity with development tools such as Eclipse or IntelliJ. · Basic knowledge of secure coding practices and federal IT standards.

As a back-end developer, you know that a good site or system needs the right combination of clean code, APIs, analytics, and infrastructure to develop a user-focused solution. We're looking for a back-end developer with the software engineering skills it takes to help identify potential risks, contribute to solution development, and create efficient and effective systems for our clients. As a back-end developer, you'll use the latest architectural approaches and open-source frameworks and tools to help deliver solutions. Using your software engineering knowledge, you'll work with and learn from the development team to create custom tools, systems, and sites with consistent performance and scalability. In this role, you'll make a mission-forward impact as you sharpen your skillset and grow your career. Work with us as we shape systems for the better. Qualifications Experience with programming languages such as Ruby, Python, C#, Java, or PowerShell TS/SCI clearance HS diploma or GED and 7+ years of experience as a Software Engineer, or Bachelor's degree and 3+ years of experience as a Software Engineer Certified Secure Software Lifecycle Professional (CSSLP) Certification Additional Qualifications Experience working on multiple OS platforms, including Linux and Windows Experience with the Windows Computing Environment (CE) Linux CE Certification DoD Approved 8570 - Information Assurance Technician (IAT) Level II Certification such as CCNA Security, CySA+, GICSP, GSEC, Security+ CE, CND, or SSCP Certification, or higher level IAT Certification Clearance: Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance is required. Compensation and Benefits Salary Range: $100,000 - $140,000 MAX (Compensation is determined by various factors, including but not limited to location, work experience, skills, education, certifications, seniority, and business needs. This range may be modified in the future.) Benefits: Gridiron offers a comprehensive benefits package including medical, dental, vision insurance, HSA, FSA, 401(k), disability & ADD insurance, life and pet insurance to eligible employees. Full-time and part-time employees working at least 30 hours per week on a regular basis are eligible to participate in Gridiron's benefits programs. Gridiron IT Solutions is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status or disability status. Gridiron IT is a Women Owned Small Business (WOSB) headquartered in the Washington, D.C. area that supports our clients' missions throughout the United States. Gridiron IT specializes in providing comprehensive IT services tailored to meet the needs of federal agencies. Our capabilities include IT Infrastructure & Cloud Services, Cyber Security, Software Integration & Development, Data Solution & AI, and Enterprise Applications. These capabilities are backed by Gridiron IT's experienced workforce and our commitment to ensuring we meet and exceed our clients' expectations.

Software Engineer (TS/SCI + CI Polygraph) Employment Type: 6-Month Contract (On-Site, Full-Time) Contract Term: 6 months with possibility to extend Work Schedule : On-Site, 5 Days/Week Available Locations: • Kent, Washington • El Segundo, California • Colorado Springs, Colorado • Chantilly, Virginia Clearance Required: Active TS/SCI with CI Polygraph (No exceptions) About the Role We are seeking a highly skilled Software Engineer with strong experience in Python, AWS cloud technologies, DevSecOps, and Atlassian toolsets. This contract supports mission-critical government programs in secure environments. The role is fully on-site and requires hands-on development, secure practices, and close collaboration with cross-functional engineering teams. Key Responsibilities • Design, develop, and maintain Python applications aligned with mission and cybersecurity requirements. • Implement and manage DevSecOps pipelines including secure automation, CI, and CD for cloud and on-prem systems. • Develop and support AWS-based solutions with secure, resilient, and scalable architectures that meet DoD/IC cloud standards. • Collaborate with cross-functional teams to gather requirements, contribute to technical milestones, and deliver secure, high-quality software. • Apply secure coding practices ensuring compliance with DoD, IC, RMF, and STIG/SRG requirements. • Use Atlassian tools (Jira, Confluence, Bitbucket) for task tracking, documentation, and code management. • Troubleshoot and optimize applications, pipelines, and cloud workloads for performance, security, and reliability. • Support integration, testing, and deployment of cloud and on-prem systems in classified environments. Required Qualifications • Active TS/SCI with CI Polygraph (mandatory). • 5+ years of professional software engineering experience with strong hands-on Python skills. • Experience with AWS services such as Lambda, ECS/EKS, S3, IAM, API Gateway, Terraform/CloudFormation, etc. • Proven ability to build and operate secure DevSecOps pipelines with automated security scanning. • Strong understanding of secure development practices and DoD/IC cybersecurity frameworks and accreditation. • Proficiency with Atlassian tools: Jira, Confluence, Bitbucket. • Experience working in classified hybrid cloud/on-prem environments. • Ability to work on-site 5 days per week at one of the designated locations. • Excellent communication, documentation, and problem-solving skills. Preferred Qualifications • Experience supporting DoD, Intelligence Community, defense, or aerospace programs. • Knowledge of: o Infrastructure as Code (IaC): Terraform, CloudFormation o CI/CD Tools: GitLab CI, Jenkins, AWS CodePipeline o Containers: Docker, Kubernetes o Automated Security Tools: SAST, DAST, SCA, IaC scanning • Familiarity with Zero Trust architectures, identity services, or cross-domain solutions

Samtek Inc., located in Job Location: Herndon, Virginia, is seeking a full-time Software Engineer. Before applying for this role, please read the following information about this opportunity found below. May req to trvl (apprx 25% to 50% of the time) to various unanticipated client worksites across the US. Send resume to Samtek xevrcyc Inc., 205 Van Buren St., Ste. 120, Herndon, VA 20170 OR e-mail:

10+ years of experience in Design and Development of applications using Java 8+/J2EE, Spring, Spring-Boot, RESTful Services and UI Framework • Should have exp in Leading a team. • 5+ years of experience in design and development of Microservice using Spring-Boot and REST API • Strong knowledge/experience in ORM Framework - JPA / Hibernate • Good knowledge and experience in Docker and Kubernetes • 2+ years of experience in any one of the UI Framework - Angular / ReactJS • 1+ years of experience in designing and Implementing cloud-based solutions in various AWS Services (EC2, IAM, S3, Lambda, etc) • Good knowledge and experience in any RDBMS/PostgreSQL • Strong experience in DevOps tool chain (Jenkins, Artifactory, Maven/Gradle, GIT/BitBucket) • Good knowledge in technical concepts - Security, Transaction, Monitoring, Performance Nice to have: • Experience with OAuth implementation using Ping Identity • Familiarity with API Management (Apigee) and Service Mesh (Istio)

The candidate must have experience with both Java and Python, in addition to PowerShell and AI/ML tools. Must Have Qualifications: Python and Java development, strong understanding of design and explain and educate developers. Key Responsibilities: Design and implement developer workspaces using physical, virtualized, or browser-based solutions. Develop tools primarily in Python and Java to enhance developer workflows. Advocate for and implement CI/CD improvements through new tooling and commonly available libraries. Create patterns to manage desktop provisioning and software package management using SCCM, VDI, or similar technologies. Lead initiatives to integrate Generative AI capabilities into Developer workflows, enhancing the value proposition for customers. Partner with end-user collaboration suites to create seamless developer experiences. Ensure all solutions meet audit, risk, and governance requirements. Evangelize best practices and solutions within the developer community.

Looking for a strong Back End Software Engineer to support high impact intelligence missions. If you meet the required certifications and want to work on meaningful tech, I want to hear from you today. Minimum Qualifications • Bachelor's Degree plus 4 years of software engineering experience • CSSLP certification • Strong mission knowledge • U.S. Citizen with active TS SCI

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. To be eligible for this position, you must be a U.S. Person, defined as a U.S. citizen, permanent resident, Asylee, or Refugee. Note on Cleared Roles: If this position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status. Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3). Please review the job details below. This position requires an active U.S. Government Security Clearance at the TS/SCI level with CI Polygraph. The Back-end Developer will work independently and as part of a cross-functional team comprised of technical experts supporting an established and growing Intelligence Community (IC) mission. You will need to quickly understand complex technical concepts, make assessments, and articulate your recommendations to the customer. Previous experience working on-site to support the Department of Defense (DoD) and the Intelligence Community (IC) is highly desirable. Responsibilities: Enable the development of system architectures, software systems, or software applications. Focus of work will primarily be back-end development. Develop new software from algorithm definitions and prototypes. Work with program teams to plan future operations. Practice and improve on agile development methodologies and tools. Work in a collaborative environment to support sensor system design and fielding, special communications, and C2. Work with a multi-disciplinary team to compile complex products to inform leadership on technical risks and chances for success of projects. Brief customer project, program and senior leadership, as well as mission partners on modeling efforts, results, conclusions and recommendations. Minimum Qualifications: Must have active TS/SCI security clearance with CI Polygraph. Bachelor's degree in engineering, sciences, Computer Science, Physics, Applied Mathematics, or related technology field. 4 additional years of experience may be substituted in lieu of a degree. 6 years of relevant experience in software development, technology, engineering and/or science. Strong programming skills in C++, Java, Lambda, Go, AWS, etc. Experience creating task based native software Experience with algorithms, RESTful APIs, RESTful Web Services, Orchestration and Containerization (e.g. Kubernetes, Docker) Ability to communicate highly technical analyses at a level comprehensible to non-technical audiences and senior-level government representatives. Expert knowledge and use of Microsoft Word, Excel, and PowerPoint. Preferred Qualifications: Experience working with High Performance Computing (HPC) and/or distributed computing systems Experience with Digital Signal Processing, Image Processing, Matlab Knowledge in Synthetic Aperture Radar (SAR), Electro-Optical (EO), Geographic Information Systems (GIS), Geospatial Data. Experience with ArcGIS, ERDAS Imagine, STK, SIMDIS, Global Mapper, ENVI, QT Modeler and/or SocetGXP. Advanced education in Math, Physics. Experience working on-site at a customer location. Experience working in DOD / IC. Demonstrated ability to work effectively as a lead or within a team of peers, as well as excellent interpersonal and communications skills. Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate's starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range. ● The base pay for this position within the Washington, DC metropolitan area is: $137,000.00 - $228,000.00 annually. For all other states, we use geographic cost of labor as an input to develop market-driven ranges for our roles, and as such, each location where we hire may have a different range. Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: ****************************** Additionally, this position is incentive eligible with a target based on contribution, company performance, and/or individual results achieved; the specific incentive plan and target amount will be determined based on the role and breadth of contributions. The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire. The date of posting can be found on Vantor's Career page at the top of each job posting. To apply, submit your application via Vantor's Career page. EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II Who is Mastercard? At Mastercard technology, we work to connect and power an inclusive, digital economy that benefits everyone, everywhere, by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships, and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. We cultivate a culture of inclusion for all employees that respects their individual strengths, views, and experiences. We believe that our differences enable us to be a better team - one that makes better decisions, drives innovation, and delivers better business results. Technology at Mastercard What we create today will define tomorrow. Revolutionary technologies that reshape the digital economy to be more connected and inclusive than ever before. Safer, faster, more sustainable. And we need the best people to do it. Technologists who are energized by the challenges of a truly global network. With the talent and vision to create the critical systems and products that power global commerce and connect people everywhere to the vital goods and services they need every day. Working at Mastercard means being part of a unique culture. Inclusive and diverse, a rich collaboration of ideas and perspectives. A place that celebrates your strengths, values your experiences, and offers you the flexibility to shape a career across disciplines and continents. And the opportunity to work alongside experts and leaders at every level of the business, improving what exists, and inventing what's next. About the Role • Successfully lead multiple initiatives and complex assignments with broad scope and long-term business implications. • Develop innovative solutions that meet specific business needs. • Partner with TPMs, PMTs, and lead SDE across the initiatives to lead SDLC efforts. • Assist and collaborate with solution architects and cross functional teams across the different regions. • Create proof of concept applications • Collaborate with business and technical partners • Assist in the evaluation of 3rd parties and 3rd party products. • Ensure adherence to established quality control practices. • Create and maintain technology roadmaps. • Ensure adherence to established software development process. • Effectively communicate to management, business owners, and other stake holders. All About You • Bachelor's degree in Information Systems, Information Technology, Computer Science or Engineering or equivalent experience. • Seasoned tech lead having experienced technologists with technical breadth and depth coupled with strong interpersonal skills. • An architect who loves to solve complex problems and passionate about designs, quality of deliverables, and collaborating with high performing teammates towards product delivery and support • Contribute to the delivery of decoupling the existing platforms into smaller reusable services by maintain a technology roadmaps • Brings in cloud based architect experience and integrating vendor and open source products into an overall systems • Experience on integration using external third party libraries and APIs, payment gateways, CI understanding • Expertise and advanced skills in designing, analyzing, troubleshooting, implementing large-scale, robust solutions systems that perform faultlessly at scale, with high availability resilience • Ability to quickly learn and implement new technologies, frameworks and tools and support & manage multiple concurrent initiative/projects under Strategic Growth and working as a member of a matrix based diverse and geographically distributed project team. • Experience in delivering secure solutions in Financial Services Sector is preferred. • Advanced knowledge and understanding of Software Engineering Concepts and Methodologies are required. • Expertise in TPL [The pattern Language, formerly Tideway Pattern Language] versions 1.12+ and associated Query Language or similar languages (Python/Jython/Perl) Skills • Ability to be high-energy, detail-oriented, proactive and able to function under pressure in an independent environment along with a high degree of initiative and self-motivation to drive results. • Strong communication skills -- both verbal and written - and strong relationship, collaboration skills and organizational skills. • Ability to quickly learn and implement new technologies, frameworks and tools and support multiple concurrent activities and to interface with external / internal resources, working as a member of a matrix based diverse and geographically distributed project team. • Experience architecture, design patterns and responsible for designing, developing and running micro services. • Ability to innovate and develop new approaches to complex design problems and experience leading design efforts and providing technical leadership to developers • Ability to work with PMT, TPM, PO & software engineering team to translate requirements to design, implementation of quality deliverables. • Supervise & review design & implementation to comply with industry standard practices and quality attributes. • Generate and manage reference architecture to preserve & reuse the knowledge, reproduce artifacts to leverage for architecture & design description. Key Technology Areas • Object-oriented design and programming • Open source frameworks such as Spring, Springboot, Spring batch and Hibernate • Oracle, PL/SQL, JDBC, Postgress, redis • Web Services (SOAP, REST, XML, XSL) • Object-oriented design and programming Preferred Knowledge • Cloud Technologies (PCF/AWS/Azure) • Linux/Bash skills • CI/CD with Jenkins or equivalent tooling • Agile development methodology • Knowledge of REGx in pattern Matching • Working with a preferred IDE such as Visual Studio Code, Eclipse or Notepad ++Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations. Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Software Engineer II Job Overview: Provides support of applications software through programming, analysis, design, development and delivery of software solutions. Researches alternative technical solutions for changing business needs. Major Accountabilities: •Responsible for programming, testing, implementation, documentation, maintenance and support of systems application software in adherence with MasterCard standards, processes and best practices. •Develop high quality, secure, scalable software solutions based on technical requirements specifications and design artifacts within expected time and budget. •Research, create and evaluate technical solution alternatives for the business needs current and upcoming technologies and frameworks. •Perform feasibility studies, logic designs, detailed systems flowcharting, analysis of input-output flow, cost and time analysis. •Work with project team to meet scheduled due dates, while identifying emerging issues and recommending solutions for problems and independently perform assigned tasks, perform production incident management. Participate in on-call pager support rotation. •Document software programs per Software Development Best Practices. Follow MasterCard Quality Assurance and Quality Control processes. •Assist Senior Team members in modification of the documentation templates per the needs of the project and technology. •Contribute ideas to help ensure that required standards and processes are in place and actively look for opportunities to enhance standards and improve process efficiency. •Support collection and reporting of project and software metrics. Education: •Bachelor's degree in Information Technology, Computer Science or Management Information Systems or equivalent work experience. Knowledge / Experience: •Thorough knowledge and understanding of Software Engineering Concepts and Methodologies is required. •Must demonstrate MC Core Competencies. •1 to 3 years of experience in software engineering field. Skills/ Abilities: •Must be high-energy, detail-oriented and proactive with the ability to function under pressure in an independent environment. •Must provide the necessary skills to have a high degree of initiative and self-motivation with a willingness and ability to learn and take on challenging opportunities. •Strong communication skills -- both verbal and written - with strong relationship, collaborative skills and organizational skills. •Ability to work as a member of matrix based diverse and geographically distributed project team. Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact reasonable_accommodation@mastercard.com and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: Abide by Mastercard's security policies and practices; Ensure the confidentiality and integrity of the information being accessed; Report any suspected information security violation or breach, and Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. In line with Mastercard's total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: insurance (including medical, prescription drug, dental, vision, disability, life insurance); flexible spending account and health savings account; paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave); 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire; 10 annual paid U.S. observed holidays; 401k with a best-in-class company match; deferred compensation for eligible roles; fitness reimbursement or on-site fitness facilities; eligibility for tuition reimbursement; and many more. Pay Ranges O'Fallon, Missouri: $92,000 - $147,000 USD