NewSr. Systems Engineer System OneSr. Systems EngineerGaithersburg, MDBachelor's degree in Systems Engineering, Computer Science, Software Engineering, Electrical Engineering or a related STEM discipline and 8-12 years of prior relevant experience or a Master’s with 6-10 years of prior relevant experience. Lead system performance assessments, troubleshoot complex issues across applications, infrastructure, interfaces, networks, and data flows, identify and mitigate technical risks, and drive solutions that ensure system reliability, mission effectiveness, and operational performance.
NewWindows Infrastructure Engineer/Architect System OneWindows Infrastructure Engineer/ArchitectWashington, DCRemote$63–$75 / hourBachelor’s degree in computer science, information systems, engineering, or a related technical field, and eight (8) or more years of progressive Windows Infrastructure Engineer/Architect experience OR Master’s degree in a related field and at least 6 years of relevant experience in above areas. They will be responsible for architecting robust identity solutions, managing our Enterprise Public Key Infrastructure (PKI), and providing high-level tier -3 architectural support to ensure optimal security, compliance, and system availability across our hybrid environment.
Principal Software Engineer, SIEM Ruby/Rails Huntress Labs IncPrincipal Software Engineer, SIEM Ruby/RailsDCRemoteAs a Principal Software Engineer at Huntress, you will be responsible for leading a feature delivery team in the design, development, and high-quality release of software features for the Huntress SIEM Platform that provides for automated detection and human-powered threat hunting. Collaborate closely with the team engineering manager, product manager, security research, platform, and architect on strategic initiatives and technical designs.
Senior Full Stack Software Engineer Cybersecurity ConsultNetSenior Full Stack Software Engineer CybersecurityRockville, MDYou do not need to come from a dedicated cybersecurity background, but you should have an interest in learning the security domain and applying strong software engineering principles to solve complex security and technology challenges. For over 25 years, we have connected thousands of consultants with meaningful roles through a personal, communication-driven approach, partnering with a diverse client base to build high-performing teams and create lasting impact.
Software Engineer - AI Enablement & Enterprise Systems ConsultNetSoftware Engineer - AI Enablement & Enterprise SystemsRockville, MDThis role will partner with business stakeholders, architects, and engineering teams to evaluate, prototype, and implement AI-enabled solutions that improve operational efficiency, analytics, and decision-making across enterprise platforms. For over 25 years, we have connected thousands of consultants with meaningful roles through a personal, communication-driven approach, partnering with a diverse client base to build high-performing teams and create lasting impact.
Software Engineer Altamira TechnologiesSoftware EngineerWarrenton, Virginia$100,000–$150,000 / yearSoftware-Defined DSP: Translate complex mathematical algorithms (FFTs, FIR filters, DDC, spectral estimation) into efficient, scalable Digital Signal Processing (DSP) software implementations. Actual compensation will be determined based on several factors, including, but not limited to, the scope of the position, relevant experience, education, certifications, internal equity, customer contractual requirements, security clearance requirements, and other legitimate business considerations.
Senior Software Engineer (Hybrid) - 27718 WyetechSenior Software Engineer (Hybrid) - 27718Columbia, MarylandFull timeSpring, Guava) Bachelors in related field; 7 years relevant experience with Masters in related field; or High School Diploma or equivalent and 13 years relevant experience. At Wyetech, you’ll be at the center of an award-winning corporate culture, breaking technological barriers and solving real-world problems for our federal government customers.
Senior Software Engineer (Hybrid) - 29300 WyetechSenior Software Engineer (Hybrid) - 29300Columbia, Maryland$52.46–$139.92 / hourFull timeAt least 5 years of experience in Software Engineering, with a strong focus on Python backend development and a Bachelors in related field; 3 years relevant experience with Masters in related field; or High School Diploma or equivalent and 9 years relevant experience. Build Model Context Protocol (MCP) servers and a library of reusable "skills" (function calling/tools) that enable AI agents to safely interact with internal databases, microservices, and external APIs.
Software Engineer (Hybrid) - 29037 WyetechSoftware Engineer (Hybrid) - 29037Columbia, Maryland$52.46–$139.92 / hourFull timeBuild Model Context Protocol (MCP) servers and a library of reusable 'skills' (function calling/tools) that enable AI models to safely interact with our internal databases, microservices, and external APIs. Compensation will vary dependent upon factors including but not limited to: Government contract rates; education; relevant prior work experience, knowledge, skills, and competencies; certifications, and geographic location.
Software Engineer Nodal Exchange, LLCSoftware EngineerTysons Corner, VA$90,000–$130,000 / yearNodal Exchange, the largest power futures exchange in North America, is a derivatives exchange providing price, credit and liquidity risk management to participants. All transactions on Nodal Exchange are cleared through its wholly owned subsidiary, Nodal Clear, using its award-winning portfolio-margining methodology.
Senior Software Engineer II Rocket Lab CorpSenior Software Engineer IIChantilly, VA$143,300–$214,850 / yearImportant information: FOR CANDIDATES SEEKING TO WORK IN US OFFICES ONLY: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Rocket Lab's Space Systems division builds complete spacecraft, precision payloads to the components and subsystems that allow them to thrive in space including solar panels, flight software, star trackers, optical systems, separation systems, and radios.
Senior Software Engineer Research Riverlane LtdSenior Software Engineer ResearchCollege Park, MD$130,000–$180,000 / yearHaving raised more than $125M in funding to date to accelerate our cutting-edge R&D in quantum error correction (QEC), Riverlane partners with many of the world's leading quantum hardware providers and government agencies to make fault-tolerant quantum computing a reality. The Engineering Research team oversees these components and it brings together mathematicians, physicists and engineers, working closely across disciplines on challenging technical problems.
Mid-Level Software Engineer Java/Python, AWS & Agentic AI ConsultNetMid-Level Software Engineer Java/Python, AWS & Agentic AIRockville, MDThe ideal candidate has 5 years of professional software development experience, strong Java and Python skills, hands-on AWS experience, and familiarity with modern AI concepts such as Model Context Protocol (MCP), AI agents, tool use, and LLM orchestration. They should be comfortable building production-quality cloud applications while exploring practical ways to incorporate LLMs, intelligent document processing, MCP, and agentic AI into scalable enterprise solutions.
Cross-Domain Software Developer CymertekCross-Domain Software DeveloperChantilly, VirginiaCross-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.
Enterprise Architect/Systems Engineer LeidosEnterprise Architect/Systems EngineerBethesda, MD$131,300–$237,350Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
Staff Software Engineer - Reporting & Billing ID.meStaff Software Engineer - Reporting & BillingMclean, VA$222,011–$258,300 / yearAI-Augmented Development: Model and champion AI-first engineering practices - leveraging tools like Claude Code and Cursor to accelerate design, implementation, and review cycles - and help the broader team adopt these workflows effectively. Hands-on experience at scale designing and owning event driven architecture using technologies such as Kafka, Pub/Sub, SNS, Debezium, or similar, where accuracy and auditability are non-negotiable.
Senior Network Engineer LeidosSenior Network EngineerAccokeek, MD$107,900–$195,050The Senior Systems Engineer will provide technical leadership and support in the areas of IT planning, solution specification/design, implementation and target architecture development for the AFNCR Consolidated Communication Center (CCC). If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
M365 Engineer LeidosM365 EngineerBethesda, MD$107,900–$195,050Engineer, administer, and provide lifecycle support for Microsoft 365 (government community cloud (GCC) services including but not limited to: Entra ID (Azure AD), Exchange Online, Intune, Teams, Power Platform, Purview. Leidos Dig Mod Health IT division is seeking a skilled and collaborative M365 Engineer to support the HHS enterprise by managing all aspects of Microsoft 365 Government Community Cloud (GCC) Software as a Service (SAAS) offering.
Systems Integration Engineer LeidosSystems Integration EngineerMount Airy, MD$87,100–$157,450TFDM program is a Federal Aviation Administration’s (FAA) NextGen program based on airport surface management provides that efficiencies for both the airport surface and terminal airspace by providing a new and comprehensive integrated surface traffic control and management system. June 25, 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.
NewFull-Stack Developer / Software Engineer E LogicFull-Stack Developer / Software EngineerWashington D.C., DCRemoteThis role provides hands-on development expertise for modernizing GSA's applications, supporting cloud transformation, and building APIs and web applications using modern software development techniques. Proficiency in Angular, JavaScript frameworks, Git/GitHub (CI/CD Pipelines), MySQL (or general SQL database management), Python, Node.js, Microsoft IIS.