Senior Full Stack Developer GuidehouseSenior Full Stack DeveloperTysons Corner, VirginiaWork collaboratively with user experience designers, platform engineers, product owners, solution architects, and business analysts, the Cloud Applications Full Stack Developer will design, build, test, and deploy high-value, operationally resilient software products on the AWS cloud platform that satisfy functional and non-functional requirements. Flask, Docker, EKS/Kubernetes, AWS Step Functions, Event Bridge, AWS Lambda, AWS API Gateway, Elasticsearch, Caching frameworks, Redis, Memcached, the Amazon Relational Database Service (RDS) for Postgres, and/or the MongoDB NoSQL database service.
Full Stack Developer GuidehouseFull Stack DeveloperMclean, VAWork collaboratively with user experience designers, platform engineers, product owners, solution architects, and business analysts, the Cloud Applications Full Stack Developer will design, build, test, and deploy high-value, operationally resilient software products on the AWS cloud platform that satisfy functional and non-functional requirements. Flask, Docker, EKS/Kubernetes, AWS Step Functions, Event Bridge, AWS Lambda, AWS API Gateway, Elasticsearch, Caching frameworks, Redis, Memcached, the Amazon Relational Database Service (RDS) for Postgres, and/or the MongoDB NoSQL database service.
Lead Full-Stack Developer GuidehouseLead Full-Stack DeveloperMclean, VACollaborate with user experience designers, platform engineers, product owners, solution architects, business analysts, and full-stack development teams to design, build, test, and deploy high-value, operationally resilient software products on AWS that meet functional and non-functional requirements. Serve as a key member of the modernization team, leading and mentoring full-stack development teams while providing technical guidance and architectural oversight for innovative solution prototypes using cloud architectures and modern software technologies.
Palantir Developer GuidehousePalantir DeveloperMclean, VA$85,000–$141,000 / yearGuidehouse seeks a Palantir Developer to support the Department of Defense (DoD) by designing, building, and operating data solutions in the Vantage platform, leveraging Palantir Foundry to enable authoritative, decision-grade financial and operational insights. Engineer and optimize data models, Delta tables, and curated datasets to support financial reporting, PPBE workflows, auditability, and mission analytics within Advana and downstream Foundry use cases.
Software Developer – Full-Stack / Systems Integration CACISoftware Developer – Full-Stack / Systems IntegrationFairfax, VirginiaYou'll design interconnected databases, full-stack web applications, and automated workflows that give end users real-time visibility into inventory, equipment configuration, logistics, and technical documentation and that integrate cleanly with our operational systems, IETM platform, and Learning Management System. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Senior Software Developer VTGSenior Software DeveloperHerndon, VirginiaFull timeUtilize tools like GitHub, Jira, Jenkins, and Confluence for version control, issue tracking, continuous integration/deployment (CI/CD), and documentation, while ensuring secure configurations. • Working with customer-specific IT tools, including Secure Token Service (STS) and DataHound, to integrate secure authentication and data management into applications.
Cleared Hybrid Full Stack AI Developer (5490) SmartronixCleared Hybrid Full Stack AI Developer (5490)Hanover, MD$135,100–$227,000 / yearThe SMX salary determination process takes into account a number of factors, including but not limited to, geographic location, Federal Government contract labor categories, relevant prior work experience, specific skills, education and certifications. Our delivery model and unique approaches harness our deep technical and domain knowledge, providing forward-looking insights and practical solutions to power secure mission acceleration.
Deep Learning Expert/Developer (On-Site) Ripple EffectDeep Learning Expert/Developer (On-Site)Bethesda, MD$90,267–$103,808 / yearEstablished in 2003, and named as one of the “Best and Brightest Companies to Work For” in 2024 and 2025 by the NABR, Ripple Effect has earned acclaim for delivering unparalleled consulting services and top-tier talent across federal, private, and non-profit sectors. Strong understanding of machine learning techniques, including Support Vector Machines (SVM), Multilayer Perceptron (MLP), and Convolutional Neural Networks (CNNs).
Cybersecurity Software Developer CACICybersecurity Software DeveloperChantilly, Virginia$86,600–$181,800 / yearJob Title: Cybersecurity Software DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * * The Opportunity: Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
AI Developer Engineer UnissantAI Developer EngineerAshburn, VARemoteFull timeEssential Duties and Responsibilities:Design, develop, and productionize RAG applications, chatbots, document translation and summarization services, predictive models, anomaly-detection capabilities, and routing/optimization solutions. Communication Skills:Excellent verbal and written communication skills, with the ability to explain AI/ML designs, model performance, technical risks, and solution tradeoffs to technical and nontechnical audiences.
NewSenior Palantir Foundry Developer Unissant IncSenior Palantir Foundry DeveloperHerndon, VAThe ideal candidate is a senior Foundry practitioner and founding technical leader capable of standing up the practice's build capability, mentoring junior staff, and owning delivery on day one. Communication Skills: Excellent verbal and written skills, ability to present proposals and performance data, comfortable interfacing all levels of organization.
NewFront End Application Developer Leidos Holdings IncFront End Application DeveloperSuitland, MD$73,450–$132,775 / yearYou will provide support to help our Navy customer with a new enterprise Production and Dissemination system, which includes the migration of backend systems into a new modern environment as well as the development/customization of a new enterprise-wide web interface/application. Provide support for advanced workflow trouble shooting and support the organization new workflows to support the dissemination of future products in the new production tool.
Full Stack Developer KBR IncFull Stack DeveloperMcLean, VAImpactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense. Innovative Projects: KBR's work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions.
Full Stack Developer Vantor ServicesFull Stack DeveloperMcLean, Virginia$150,000–$165,000 / yearVantor 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. We are seeking a Full Stack Developer with a strong frontend and data-integration focus to support the development of a mission-critical, web-based application used for data ingest, analytics, visualization, and dissemination.
Appian Developer IQUASAR LLCAppian DeveloperSterling, VARemoteFull timeDesign, develop, and maintain Appian applications, including workflows, interfaces, process models, and business rules supporting case management functions. We combine functional and technical expertise in cloud engineering, data management, cybersecurity and emerging technologies to deliver mission success.
Full Stack Developer GliaCell TechnologiesFull Stack DeveloperLaurel, MD$200,000–$280,000 / yearWe also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat. Bother the Seniors: Actively seek out our senior developers to review your code, explain complex architectural decisions, and absorb their hard-earned wisdom (they like it, we promise).
Senior Cloud Developer Agile5 Technologies IncSenior Cloud DeveloperChantilly, VAOperating onsite full-time in Chantilly, VA, this role is responsible for developing advanced cloud service delivery models (PaaS, IaaS, SaaS, DaaS) and executing complex migrations from on-premises systems to secure government enclaves. About Agile5: Agile5 Technologies, Inc., is a Woman-Owned Small Business (WOSB) and Information Technology (IT) services firm that specializes in the design, development, testing, integration, and maintenance of enterprise software systems.
Software Developer Intern Leidos Holdings IncSoftware Developer InternReston, VA$48,100–$86,950 / yearWork will consist of a wide range of project tasks to include: web application design and development, securing application components including communications, multi-factor authentication, AI/LLM integration, automated testing, and static/dynamic code analysis supporting 3D modeling, simulation, and visualization. Tasks also include integration and interface development of various security products, integration and interface development of various analytic products, implementation and integration of commercial off-the-shelf products, knowledge management, and modernization of web-based user interfaces.
Agentic AI Developer Leidos Holdings IncAgentic AI DeveloperChantilly, VA$69,550–$125,725 / yearFor 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. Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced capabilities throughout the entire USG arsenal.
Full Stack Developer Closure TechnologiesFull Stack DeveloperMclean, VAThe company specializes in custom software development, cloud infrastructure, cybersecurity, systems integration, and data analytics, delivering scalable solutions that improve operational efficiency and drive mission success. With a collaborative and problem-solving culture, Closure Technologies is committed to building high-impact technology solutions that are delivered on time, within budget, and tailored to each client's unique needs.
Full Stack Software Developer SwiftFull Stack Software DeveloperChantilly, VirginiaDetermination of official compensation or salary relies on several different factors including, but not limited to: level of position, complexity of job responsibilities, geographic location, work experience, education, certifications, Federal Government contract labor categories, and contract wage rates. Requirements: 5 - 7 years’ experience with Python with development of an application in Flask, Django, FastAPI; including developing associated testing (unit and integration).
RUST Software Developer - Multiple Levels (Minimum $10K Sign-on Bonus) L3Harris Technologies IncRUST Software Developer - Multiple Levels (Minimum $10K Sign-on Bonus)Herndon, VAResponsibilities include guiding adoption of Rust throughout the embedded development, managing integration or conversion of legacy software to Rust, providing best practices and architectural guidance for memory-safe usage of Rust, developing best practices and implementation guidance, and the translation of requirements into working and maintainable solutions for our C5 and Cyber Solution Centers. About L3Harris Technologies: L3Harris Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers' mission-critical needs.
Palantir Foundry Developer/ Analyst Sikich LLPPalantir Foundry Developer/ AnalystWashington, DC$155,000–$162,500 / yearSikich CPA LLC is a licensed CPA firm that provides audit and attest services to its clients, and Sikich LLC and its subsidiaries provide tax and business advisory services to its clients. Through a dedicated focus on key business priorities and intentionally creating a rewarding employee experience, Tantus, a Sikich Subsidiary has developed into a highly regarded provider of professional services and a sought-after employer of choice.
Senior Database Developer (5480) SmartronixSenior Database Developer (5480)Washington, DC$95,600–$160,700 / yearPerformance Optimization & Query Tuning: Proactively monitor system performance, optimize database parameters, design indexing/partitioning/distribution strategies, and refactor complex SQL stored procedures to accelerate query execution for reporting tools like WebFOCUS. Collaborative Data Support: Partner directly with Data Engineers, Business Analysts, and Software Architects to review schema designs, enforce data modeling best practices, and resolve complex data integration bottlenecks.
Business Intelligence Developer Pyramid, IncBusiness Intelligence DeveloperAshburn, VA$70–$80 / hourFull timeAs an experienced software developer with focus on data analytics, you are well versed in SQL language, databases, reporting platforms, business intelligence, and coding in at least one language. You will work with our existing tools to build reports, develop database schemas, document requirements, maintain existing databases and reports, and migrate reports from one platform to another.
New26-5021: Software Developer .Net Navitas Business Consulting26-5021: Software Developer .NetHerndon,, VAFull timeWith proven solutions, award-winning technologies, and a team of expert problem solvers, Navitas has consistently empowered customers to use technology as a competitive advantage and deliver cutting-edge transformative solutions. Since our inception back in 2006, Navitas has grown to be an industry leader in the digital transformation space, and we’ve served as trusted advisors supporting our client base within the commercial, federal, and state and local markets.
NewSenior Palantir Foundry Developer UnissantSenior Palantir Foundry DeveloperHerndon, VAFull timeThe ideal candidate is a senior Foundry practitioner and founding technical leader capable of standing up the practice's build capability, mentoring junior staff, and owning delivery on day one. Communication Skills:Excellent verbal and written skills, ability to present proposals and performance data, comfortable interfacing all levels of organization.
NewSenior Full Stack AI Developer CACISenior Full Stack AI DeveloperNational Harbor, Maryland$105,100–$231,100 / yearJob Title: Senior Full Stack AI DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: Public TrustEmployee Type: RegularPercentage of Travel Required: NoneType of Travel: None* * * The Opportunity: CACI is seeking a Senior Full Stack/AI Developer to join our team of technical experts supporting the U.S. Department of Homeland Security (DHS) Headquarters Artificial Intelligence and Emerging Technology (AI/ET) initiative. Significant professional Full-Stack development experience with expertise in multiple programming languages, proficiency with cloud services (Azure and AWS with Azure preferred), deep expertise in Python for back-end development, experience with front-end frameworks such as React and CSS and strong experience in API development and management.
Lead Application Developer Revolutional, LLCLead Application DeveloperSuitland, MD$130,000–$190,000 / yearThis role requires a technically hands-on leader who can drive delivery across modern cloud-native environments while working closely with architects, engineers, product teams, and external partners. We apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes.
NewCloud/.Net Developer Junior Science Applications International CorpCloud/.Net Developer JuniorVARemote$40,001–$80,000 / yearThe developer will participate in the system architecture design, systems engineering, development, integration testing and validation, and all aspects of the software life cycle of a web application with backend web services. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services.
NewApplications Developer III Solutions³ LLCApplications Developer IIIArlington, VAFull timeDesired Skills : Experience with two or more of the following: Python, Silk, JSON, Data Analytics, MongoDB, Elastic Search, Postgress, Ansible, Vue.js, React, HTML, Kubernetes, Docker, Podman, AWS, View Jazz Framework, Process Automation, UI Development, CI/CD knowledge. Solutions 3 LLC is supporting a U.S. Government Prime Contractor and its customer on a large mission critical development and sustainment program to design, build, deliver, and operate a network operations environment, including introducing new cyber capabilities to address emerging threats.
NewApplications Developer II Solutions³ LLCApplications Developer IIArlington, VAFull timeDesired Skills : Experience with two or more of the following: Python, JSON, Data Analytics, MongoDB, MinIO, Ansible, Vue.js, React, HTML, Kubernetes, Docker, Podman, Openshift, AWS, View Jazz Framework, Process Automation, Terraform, CI/CD knowledge. Solutions 3 LLC is supporting a U.S. Government Prime Contractor and its customer on a large mission critical development and sustainment program to design, build, deliver, and operate a network operations environment, including introducing new cyber capabilities to address emerging threats.
Software Developer - Multiple Levels - Ts/Sci Poly Required Leidos Holdings Inc.Software Developer - Multiple Levels - Ts/Sci Poly RequiredReston, VA$87,100–$157,450 / yearAdditional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. 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.
Software Developer - Multiple Levels - TS/SCI Poly Required Leidos Holdings IncSoftware Developer - Multiple Levels - TS/SCI Poly RequiredReston, VA$87,100–$157,450 / yearAdditional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. 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.
Software Engineer (Full Stack & Python) CACISoftware Engineer (Full Stack & Python)Chantilly, Virginia$113,200–$237,800 / yearJob Title: Software Engineer (Full Stack & Python)Job Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: None* * * The Opportunity : CACI is seeking a Software Engineer to fill a mission facing development position. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Senior Python Software Engineer GliaCell TechnologiesSenior Python Software EngineerLinthicum Heights, MD$170,000–$260,000 / yearYou will provide the development, test, deploy, and sustainment of various Python based REST end points, microservices, and data model management capabilities utilizing Django and Flask frameworks to interact with data models stored in MariaDB or MongoDB and send data upon request, in JSON format, to UI front ends. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.
Software Developer ElectrosoftSoftware DeveloperGaithersburg, MDRemoteBachelor's degree in computer science/ systems, information systems/ technology, engineering/ engineering technology, software engineering/ programming, management, natural sciences, social sciences, mathematics or business/ finance. At least ten (10) years of development experience and at least eight (8) years of specialized experience as: applications programmer on database management systems, knowledge of computer equipment and ability to develop complex software to satisfy design objectives.
Sr Cloud Developer AnaVationSr Cloud DeveloperChantilly, VAIn this role, you’ll automate cloud resources using DevSecOps best practices and help support a robust hybrid cloud infrastructure that delivers reliable, high-bandwidth services across the enterprise. AnaVation is seeking an experienced, senior-level Cloud Developer to design and implement cloud service delivery models and architectural frameworks.
Senior Full Stack Software Developer (Full Scope Poly) Concept PlusSenior Full Stack Software Developer (Full Scope Poly)Reston, VirginiaThe Senior Developer role will be part of a team of Data, Cloud, and Security engineers delivering a cloud-native, centralized platform that delivers end-to-end budget traceability. Passion for technology, the curiosity and willingness to constantly learn new skills, work with new tools and discover new and innovative approaches to solving complex technical challenges.
Senior UI/UX Developer (Full Scope Poly) Concept PlusSenior UI/UX Developer (Full Scope Poly)Reston, VirginiaStrong experience building responsive, accessible, and maintainable web applications using modern HTML, CSS, JavaScript, React component libraries, and API-driven front-end patterns. The Senior UI/UX Developer will be part of a team of Application, Data, Cloud, and Security engineers delivering a cloud-native, centralized platform that provides end-to-end budget traceability.
AI/ML Software Developer InterImageAI/ML Software DeveloperArlington, VirginiaThis role sits at the intersection of software engineering, data engineering, and AI innovation, supporting the development of enterprise solutions that leverage large datasets and advanced language models. We are seeking a highly skilled Full Stack Developer with strong software design expertise to design, build, and scale modern applications that integrate data-intensive systems and Generative AI capabilities.
Full Stack Developer Maxar Technologies Inc (Inactive)Full Stack DeveloperMcLean, VA$220,000–$242,000 / yearVantor 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. We are seeking a Full Stack Developer with a strong frontend and data-integration focus to support the development of a mission-critical, web-based application used for data ingest, analytics, visualization, and dissemination.
Data Visualization Developer Quantum SkyData Visualization DeveloperWashington, Washington, DC$95,000–$105,000 / yearFull timeWork with large datasets, performing ETL (extract, transform, load) using languages like Python or R and database systems such as SQL Server or MySQL. This role involves designing and developing data-driven visualizations, dashboards, and web applications to support mission-critical analytics initiatives.
NewSoftware Developer AmentumSoftware DeveloperChantilly, VirginiaAs appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
NewSenior ETL Developer Maxar Technologies Inc (Inactive)Senior ETL DeveloperChantilly, VA$187,000–$205,700 / yearYour Project: We're a diverse, strong team of developers and analysts supporting an enterprise-level analytic and visualization tool that serves vast amounts of time-critical data to a broad user base in support of national security. 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.
NewSoftware Developer Amentum Services IncSoftware DeveloperChantilly, VA$190,000–$220,000 / yearAs appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
NewSenior Software Developer TeamWorx Security LLCSenior Software DeveloperColumbia, MDRemoteDesign, develop, test, deploy, and maintain applications, automation, and integrations using technologies such as Python, JavaScript, Google Apps Script, APIs, cloud services, and modern web frameworks. We are a team of data scientists, software engineers, researchers, product developers, and operation-minded folks who specialize in developing applications and products that our customers love.
Lead Full-Stack Developer Guidehouse IncLead Full-Stack DeveloperMcLean, VACollaborate with user experience designers, platform engineers, product owners, solution architects, business analysts, and full-stack development teams to design, build, test, and deploy high-value, operationally resilient software products on AWS that meet functional and non-functional requirements. Serve as a key member of the modernization team, leading and mentoring full-stack development teams while providing technical guidance and architectural oversight for innovative solution prototypes using cloud architectures and modern software technologies.
Backend Developer, Data Platform Maxar Technologies Inc (Inactive)Backend Developer, Data PlatformReston, VAMinimum Qualifications: • 5+ years of professional software engineering experience, with strong backend development skills • Strong proficiency in Python • Experience building backend systems, APIs, or distributed services in production environments • PostgreSQL and Elasticsearch proficiency • Familiarity with AWS, especially S3, RDS, and other data centric services • Current/active TS/SCI with a current CI polygraph or be willing and able to obtain a CI polygraph. Preferred Qualifications: • Experience working with data platforms, data pipelines, ETL/ELT workflows, or large-scale data processing systems • Gitlab and Gitlab CI experience • Openshift and Helm experience • Docker and containerization experience • DoD 8570 IAT II and Privileged User Access requirements met (Security+, CySA+, CCNA Security, GICSP, GSEC, SSCP).
Red Team Close Access Network Capability/Wi-Fi Developer Oak Grove Technologies IncRed Team Close Access Network Capability/Wi-Fi DeveloperFort Belvoir, VARed Team Close Access Network Capability/Wi-Fi Developer to support the Defense Threat Reduction Agency (DTRA) Cyber Assessment Red Team (DCART) through the design, development, integration, and validation of wireless and proximity-enabled access capabilities used during authorized red team assessments. This position is a development-focused role responsible for creating mission-tailored tooling, embedded access platforms, and wireless exploitation capabilities in support of close access operations conducted by DCART operators.