CNO Focused Sr. Software Engineer Set of XCNO Focused Sr. Software EngineerAnnapolis Junction, MD$120,000–$247,000 / yearSoftware Engineer will be supporting analysts and operators in multiple product groups by designing, developing, and integrating tools to automate data collection, analysis, and presentation. With a shared desire to give back, grow the community, and do great work, the Set of X team is building an elite group of engineers with a strong sense of shared responsibility and ownership.
SSDS Software Engineer - JobID-0291 INNOVATIVE DEFENSE TECHNOLOGIESSSDS Software Engineer - JobID-0291Arlington, VA$114,000–$231,000 / yearThis SSDS Software Engineer will focus heavily on designing, developing, integrating, and testing tactical combat system software interfaces, specifically interacting with naval combatants (SSDS), fire control loops, and self-defense systems (RAM/CIWS). Integrate software components with complex Navy tactical combat systems, specifically developing interfaces and middleware wrappers for SSDS, RAM, or CIWS data streams.
Full Stack Software Engineer ANDURIL INDUSTRIESFull Stack Software EngineerWashington, DC$132,000–$198,000 / yearLead the development of prototypes to demonstrate advanced concepts in areas like autonomous and multi-agent systems, GenAI, advanced data analytics, quantum computing/sensing/networking/comms/machine learning, modeling, simulation, optimization, visualization, next-gen human-machine interfaces, heterogenous computing, and cybersecurity. unsupervised learning, regression, classification, clustering, deep learning neural networks, NLP, LLMs, SLMs, model fine-tuning, prompt engineering, RAG) and hands-on experience developing (Gen)AI-enhanced applications or services.
Cyber Full-Stack Technical Software Engineer Deloitte Touche Tohmatsu LtdCyber Full-Stack Technical Software EngineerVA$122,000–$240,500 / yearExperience with one of the following Frontier GenAI Platforms: Anthropic, Google or Open AI, including hands on experience with one of the following key platforms/products; Claude API, Claude for Enterprise, tool use, extended thinking, Claude Code, Gemini API, Vertex AI Agent Builder, Grounding, Google Workspace integration, GPT-4o, Assistants API, Responses API, OpenAI Agents SDK. Our purpose comes through in our work with clients that enables impact and value in their organizations, as well as through our own investments, commitments, and actions across areas that help drive positive outcomes for our communities.
Software Engineer V, AI Digital & Engineering Software X Energy LLCSoftware Engineer V, AI Digital & Engineering SoftwareRockville, MD$220,000–$245,000 / yearDesign and implement integrations between customer, partner, and supplier engineering systems (Siemens Teamcenter, PTC Windchill, Dassault 3DEXPERIENCE, Aras Innovator, Siemens Polarion, IBM DOORS/DOORS Next, Jama Connect, Oracle Primavera P6, Procore, SAP ERP, Box) and X-energy's platform and lakehouse, using AWS Glue, DMS, Kinesis, EventBridge, API Gateway, and Lambda. Working in a fast-paced, collaborative team environment, this engineer applies modern large language models, agentic AI, and cloud-native engineering to move X-energy from siloed documents toward a living, queryable engineering model spanning requirements, design, manufacturing, regulatory, and deployment processes.
Associate Software Engineer Johns Hopkins University Applied Physics Laboratory LLCAssociate Software EngineerLaurel, MDAre well-versed in using professional software development tools such as integrated development environments (IDE), version control, issue trackers, debuggers and continuous integration tools and willing to lead teams through integration processes. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.
Software Engineer in Deployment - JobID-0241 Innovative Defense TechnologiesSoftware Engineer in Deployment - JobID-0241Arlington, Virginia$135,000–$273,000 / yearWho You Are (Required): Bachelor’s Degree in Information Technology, Computer Science, Computer Engineering, Electrical Engineering, Systems Engineering, Physics, or Math, or equivalent full-time professional experience; Master’s Degree in Engineering or other technical field highly desired. Manage, mentor, and lead a small team of engineers working operational and development tasks while championing the use of AI to streamline the team’s workflow, incorporating AI-driven approaches to optimize automation and reduce the complexity of installations.
US Military Skillbridge Internship (Software Engineer)_Arlington, VA Black CapeUS Military Skillbridge Internship (Software Engineer)_Arlington, VAArlington, VARemoteWe know this is a Skillbridge internship program that bridges the gap from your military training to practical application in the civilian technical world, but we have found that candidates with three to six months (or more) of technical experience usually thrive best in our program. This company model combines lessons learned from developing and deploying multiple applications to production on JWICS and Amazon Web Services (AWS) with commercial best practices in DevOps and Agile development.
Associate Software Engineer Johns Hopkins Applied Physics LaboratoryAssociate Software EngineerLaurel, MarylandFull timeAre well-versed in using professional software development tools such as integrated development environments (IDE), version control, issue trackers, debuggers and continuous integration tools and willing to lead teams through integration processes. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.
Model-Based Systems Engineer LeidosModel-Based Systems EngineerWashington, DC$69,550–$125,725Bachelor’s degree in engineering or related field with 2+ years of prior relevant experience or a master’s degree with at least a year experience in one of these areas: systems engineering, software engineering, test engineering or related field. March 30, 2026For 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.
Enterprise - Cloud Software Engineer - JavaScript, Hobbit, Nagios Erias VenturesEnterprise - Cloud Software Engineer - JavaScript, Hobbit, NagiosAnnapolis Junction, MarylandExperience A bachelor's degree in computer science or related discipline; or an associate's degree in computer science or related discipline and two (2) years programming experience; or five (5) years programming experience may be substituted for a bachelor's degree. Within the last five (5) years, a minimum of three (3) years experience with OpenSource (NoSQL) products that support highly distributed, massively parallel computation needs such as Hbase, CloudBase/Accumulo, and/or Big Table.
608 Software Engineer 3 ARSIEM608 Software Engineer 3Annapolis Junction, MDFull timeProvides specific input to the software components of system design to include hardware/software trade-offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. Develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements.
Software Engineer, Level III Seneca HoldingsSoftware Engineer, Level IIIAberdeen, MDVendor and tool training that carries weight: GitLab CI/CD; Windows Army Gold Master administration; DISA STIG and SCAP tooling; architecture modeling tools; Angular; design system tooling (Storybook); Figma; front-end performance profiling tools; Classified pipeline design; Windows Army Gold Master hardening; eMASS; cross-domain delivery practice; Red Hat RHCE; Spark and Delta Lake architecture; Kafka; data mesh/lakehouse patterns; cross-domain (NIPR/SIPR/JWICS) data movement practices; advanced Python ML; MLOps pipelines in GitLab; model risk and validation practice; Multi-domain (NIPR/SIPR/JWICS) architecture; DoD Cloud Computing SRG; zero trust reference architecture; cross-domain solution patterns. C#, or Python development; Agile/Scrum delivery; GitLab CI/CD pipelines; REST API design; unit and integration testing; STIG-compliant secure coding; Windows Army Gold Master (AGM) target environment; software installation package assembly (source, executables, Build Version Description, Help); System User's Manual authoring; software architecture; classified enclave deployment; Windows AGM compatibility engineering; technical leadership and code review; cross-baseline integration; front-end architecture in a modern JavaScript framework (Angular); design system and component library governance; Section 508 / WCAG 2.1 AA conformance; usability testing; cross-product interaction design; front-end performance optimization.
Cross-Domain Software Developer CymertekCross-Domain Software DeveloperAnnapolis Junction, MarylandCross-Domain Solutions Developer, Secure Data Transfer Developer, Information Assurance Developer, Software Security Engineer, Cybersecurity Software Developer, Secure Systems Developer, Data Protection Software Engineer, Network Security Developer, Cross-Domain Architect, Secure Application Developer, Secure Integration Engineer, Software Developer for Classified Systems, Secure Communication Systems Developer, Information Security Software Engineer, Secure Systems Analyst, Cross-Domain Interface Developer, Secure Middleware Developer, Secure Systems Programmer, Embedded Systems Security Developer, etc. Computer Science, Software Engineering, Cybersecurity, Information Technology, Information Systems, Computer Engineering, Systems Engineering, Network Engineering, Applied Mathematics, Data Science, Information Assurance, Cryptography, Digital Forensics, Telecommunications, Artificial Intelligence, Secure Communications, Electrical Engineering, Computational Science, Secure Software Development, Embedded Systems Engineering, etc.
Software Engineer (Partial Telework) GliaCell TechnologiesSoftware Engineer (Partial Telework)Annapolis Junction, MD$115,000–$190,000 / 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. Location: Annapolis Junction, MD / Partial Telework (2 days per week is expected) Note : Telework granted for this position does not become available until after the individual has been in the position for a period of time, has acclimated to tasking/duties, and has meaningful work that can be done remotely.
Senior Software Engineer (Partial Telework) GliaCell TechnologiesSenior Software Engineer (Partial Telework)Annapolis Junction, MD$170,000–$230,000 / 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. Location: Annapolis Junction, MD / Partial Telework (2 days per week is expected) Note : Telework granted for this position does not become available until after the individual has been in the position for a period of time, has acclimated to tasking/duties, and has meaningful work that can be done remotely.
Senior Software Engineer, Generalist (Active Clearance) ANDURIL INDUSTRIESSenior Software Engineer, Generalist (Active Clearance)Washington, DC$191,000–$253,000 / yearData Systems Expertise: Demonstrated success in designing, implementing, and managing various data storage solutions (e.g., relational databases, NoSQL databases) and building efficient data processing pipelines. Driven by Real-World Impact: A proactive drive and enthusiasm for developing mission-critical back-end software that demonstrably supports vital operations and makes a significant real-world difference.
Software Engineer - UI Team (SWE L1) Belay TechnologiesSoftware Engineer - UI Team (SWE L1)Annapolis Junction, MDWe hire software engineers, web designers, test engineers, systems engineers, systems administrators, database engineers and other tech services. Excellent written and verbal communication skills including formal presentation skills and ability to translate technical and non-technical communications based on audience understanding.
CNO Software Engineer Level 2 AdapticCNO Software Engineer Level 2Annapolis Junction, MDSupporting the DoD and Intelligence Community, you'll work alongside Red, Blue, and Hunt teams to develop, enhance, and sustain tools used to detect, analyze, and defend against evolving threats. This role is ideal for experienced engineers who are ready to lead development efforts, influence system design, and drive technical solutions that directly impact mission success.
NewSoftware Engineer GliaCell TechnologiesSoftware EngineerAnnapolis Junction, MDFull timeWe 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. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization.