Java Developer (SME) LeidosJava Developer (SME)Bethesda, Maryland$154,050–$278,475 / yearDocument and perform systems software development, including deployment of build artifacts across different environments leveraging GitFlow constructs and using industry leading DevOps tools like GitHub, Jenkins, and scripting (e.g., python, bash). Support the Agile software development lifecycle following Program SAFe practices while coordinating closely with team members, Product Owners and Scrum Masters to ensure User Story alignment and implementation to customer use cases.
MarkLogic Developer (SME) LeidosMarkLogic Developer (SME)Bethesda, Maryland$154,050–$278,475 / yearAdditionally, based on a DevOps framework, you will participate in and/or direct major deliverables of projects through all aspects of the software development lifecycle, including scope and work estimation, architecture and design, coding, and unit testing. January 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Angular UI Developer (TS/SCI w/ Polygraph required) Red AlphaAngular UI Developer (TS/SCI w/ Polygraph required)Herndon, Virginia$195,000–$265,000 / yearOur total compensation package was strategically designed with our members in mind with the intention to: reward our members for their hard work and commitment to our customers' missions; allow members to share in Red Alpha's success as we continue to grow and expand our footprint; provide long-term career opportunities through stability and internal mobility; and provide the resources our members need to support themselves and their dependents in the form of a robust benefits package. Our approach in determining final salaries takes into consideration a number of factors such as education, certifications, total years of relevant professional experience, actual level of expertise, and the responsibilities of the role itself.
Software Developer, Senior Booz Allen HamiltonSoftware Developer, SeniorHerndon, Virginia$86,800–$198,000 / yearOnsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.
Full Stack Developer - with AI LeidosFull Stack Developer - with AIAshburn, VirginiaThe Homeland Sector within Leidos is seeking a Full Stack Developer with strong systems, software, cloud, and Agile experience to support a complex program to provide Agile development and operations and maintenance for critical systems on a mission-critical program supporting the Passenger Systems Program Directorate (PSPD) within Customs and Border Protection (CBP). August 7, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Principal Software Developer LeidosPrincipal Software DeveloperGaithersburg, MarylandThis work aligns with the FAA’s broader initiative to modernize legacy flight service capabilities, replacing aging infrastructure with scalable, cloud-based platforms designed to improve safety and operational efficiency—particularly in remote and high-dependency aviation environments. Leidos is seeking Principal Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight service and air traffic systems.
Senior PeopleSoft/Oracle Developer NSSSenior PeopleSoft/Oracle DeveloperHerndon, VirginiaYou’ll work closely with engineering teams to support, enhance, and maintain critical PeopleSoft environments and Oracle-based applications — with a strong focus on security compliance, data integrity, and system performance. This role is ideal for a senior engineer who can work across application, middleware, and infrastructure layers to ensure stable, secure, and high-performing systems.
Windows Kernel Developer Nightwing Intelligence SolutionsWindows Kernel DeveloperSterling, Virginia$122,000–$253,000 / yearThe ideal candidates will bring strong expertise in kernel-level development, Windows internals, and advanced debugging techniques to deliver high-performance, reliable solutions. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization.
Mid-Level Software Developer SITEC ConsultingMid-Level Software DeveloperLaurel, MDFull timeMid-Level Software DeveloperLocation: Laurel, MDSchedule: Full-Time, On-SiteClearance Required: TS/SCI with PolygraphSITEC Consulting is seeking a Mid-Level Software Developer to support the sustainment, enhancement, and production support of enterprise business applications in a secure mission environment. The selected candidate will join a collaborative team of developers and systems engineers responsible for ensuring enterprise applications remain reliable, effective, and responsive to operational needs.
AI Developer Fall Intern HCIAI Developer Fall InternEllicott City, MD$30–$40 / hourWe are looking for a highly motivated AI Developer Intern for a 90-day summer internship / trial period , with the shared intention of transitioning into a full-time role immediately afterward if the fit is strong for both the candidate and HCIactive . During the 90-day period, the candidate will have the opportunity to demonstrate their technical ability, communication skills, learning speed, initiative, and alignment with HCIactive’s AI-first development approach.
Application Developer 3 Bigbear.aiApplication Developer 3Columbia, MarylandFull timeOverview: BigBear.ai is seeking a Application Developer to join exciting, up-and-coming projects where you will design, develop, prototype, modify, and integrate solutions to deliver mission-centric results. This fast-paced and dynamic environment demands a flexible, highly motivated engineer with a strong desire to learn new skills and tackle evolving challenges that are critical to national security.
Senior CNO Developer (Onsite) Nightwing Intelligence SolutionsSenior CNO Developer (Onsite)Annapolis Junction, Maryland$99,000–$206,000 / yearOur capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges.
Data Integration Developer, Journeyman KAIROS IncData Integration Developer, JourneymanPax River, MD$135,000–$155,000 / yearEstablished in July 2013, KAIROS, Inc. is a growing Woman Owned Small Business (WOSB) specializing in Life Cycle Program Management, Engineering, Cybersecurity, Logistics and Sustainment, Enterprise Platforms and AI, and Additive Manufacturing services focused on optimizing customers’ program performance and mission through proven methodologies and ethical practices. Pipeline Operations & Scalability: Monitor and troubleshoot data pipelines and onboarding activities, identify technical blockers and dependencies, communicate status to program leadership, and implement reusable patterns and automation to improve the speed, reliability, and scalability of future data acquisitions..
Principal Senior CNO Developer (Onsite) Nightwing Intelligence SolutionsPrincipal Senior CNO Developer (Onsite)Annapolis Junction, Maryland$122,000–$253,000 / yearOur capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. For over four decades, our team has been providing some of the world’s most technically advanced full-spectrum cyber, data operations, systems integration and intelligence support services to the U.S. government on its most important missions.
Software Developer ExcelitySoftware DeveloperHerndon, VirginiaResponsibilities: Designs and develops user interfaces and visualizations that support capabilities such as data discovery and query, analytic visualizations, link-node analysis, AI/ML big data analytics, and object production and relationships. Required Skills: A Bachelor’s degree with 9 years of relevant experience OR a Master’s degree with 7 years of relevant experience OR A PhD with 4 years of relevant experience; An additional 4 years of experience maybe considered in lieu of a degree requirement.
Lead Developer GuidehouseLead DeveloperRockville, MD$113,000–$188,000 / yearRelevant certifications such as: AWS Certified Developer, AWS Solutions Architect, or equivalent cloud certification; Certified Secure Software Lifecycle Professional (CSSLP) or equivalent secure development certification; SAFe Practitioner, SAFe DevOps, or Agile software delivery certification; ITIL, Security+, or other relevant federal IT, cybersecurity, or service management certification. You will work closely with federal stakeholders, architects, product owners, scrum masters, developers, testers, operations staff, security teams, IV&V partners, helpdesk partners, and modernization teams to design, build, troubleshoot, and deploy reliable, secure, scalable, and user-centered solutions.
9133 - Senior Software Developer (Lead) Indrasoft9133 - Senior Software Developer (Lead)Columbia, MarylandRemoteMaintain job knowledge by studying state-of-the-art development tools, programming techniques, and computing equipment, participating in educational opportunities, reading professional publications, maintaining personal networks, and participating in professional organizations. Write well-designed, testable, and efficient code for software components, units and modules that meet product specifications and development schedules using structured development processes.
9128 - Front-End Developer Indrasoft9128 - Front-End DeveloperColumbia, MarylandRemoteMaintain job knowledge by studying state-of-the-art development tools, programming techniques, and computing equipment, participating in educational opportunities, reading professional publications, maintaining personal networks, and participating in professional organizations. Write well-designed, testable, and efficient code for software components, units and modules that meet product specifications and development schedules using structured development processes.
UI Developer CymertekUI DeveloperAnnapolis Junction, MarylandFrontend Developer, Web Developer, User Interface Designer, UI Engineer, Frontend Engineer, Web Application Developer, Interaction Designer, UI/UX Developer, Visual Designer, React Developer, ect. Computer Science, Software Engineering, Web Development, Graphic Design, Human-Computer Interaction, Information Technology, Interaction Design, Multimedia Design, Digital Media, Applied Mathematics, ect.
CNO Software Developer with C and Python CymertekCNO Software Developer with C and PythonAnnapolis Junction, MarylandCNO Software Engineer, Network Security Software Developer, Network Operations Engineer, Cybersecurity Software Developer, C and Python Software Engineer, Systems Software Developer, Embedded Software Engineer, Security Systems Developer, Network Infrastructure Developer, Cyber Defense Software Engineer, etc. Computer Science, Cybersecurity, Network Engineering, Software Engineering, Information Technology, Computer Engineering, Electrical Engineering, Applied Mathematics, Information Systems, Data Science, Telecommunications, etc.