Senior Software Engineer / Data Scientist (Training Systems) LeidosSenior Software Engineer / Data Scientist (Training Systems)Chantilly, VirginiaBachelor’s degree in Computer Science, Data Science, Software Engineering, Mathematics, Engineering, or related technical field with 8+ years of relevant experience and 15+ years overall experience; additional experience may be considered in lieu of degree. Familiarity with contemporary AI coding ecosystems and developer productivity tools such as Claude Code, OpenAI Codex, Cursor, OpenCode, GitHub Copilot, or similar platforms.
NewGovcloud Distributed Systems Software Engineer Salesforce.com, Inc.Govcloud Distributed Systems Software EngineerHerndon, VA$148,500–$223,900 / yearYou will need deep experience with concurrency, large scale systems, proficiency with solving real-world data management challenges, a strong understanding of how to craft solutions that are highly available, and a proven ability to design, develop, and optimize the core back-end systems. Our Public Cloud engineering teams are responsible for innovating and maintaining a large scale distributed systems engineering platform that ships hundreds of features to production for tens of millions of users across all industries every day.
Network Engineer/Architect Career ListingsNetwork Engineer/ArchitectFt Belvoir, VAFull timeBachelor’s degree in Computer Science, Electrical/Network Engineering, Information Systems, or a related technical discipline with 8-12 years of relevant experience, OR a Master’s degree with 6-10 years of relevant experience. Implement and manage network access control (NAC) using Cisco Identity Services Engine (ISE), including device profiling, posture assessment, and policy enforcement to support a Zero Trust architecture.
Information Systems Security Engineer, TS//SCI with Counterintelligence Polygraph Required AccreteInformation Systems Security Engineer, TS//SCI with Counterintelligence Polygraph RequiredAlexandria, VA$150,000–$185,000You will work closely with software engineers, DevOps, security teams, data scientists, product teams, and government stakeholders to identify security requirements, assess technical risks, implement security controls, and support authorization and accreditation activities. With strategic thinking and a problem-solving mindset, you make informed decisions leveraging data and expertise, always looking for ways to improve processes, optimize workflows, and enhance outcomes beyond your immediate responsibilities.
IT Systems Engineer Scale AIIT Systems EngineerWashington, DC$171,200–$214,000 / yearThe ideal candidate pairs deep IAM best practices and hands-on SaaS administration with a zero-trust mindset, clear documentation, and a genuine drive to make people happy—while protecting system integrity in a fast-paced, high-security environment. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position and may be inclusive of several career levels at Scale; it will be determined during the interview process based on work location and additional factors, including job-related skills, experience, qualifications, interview performance, and relevant education or training.
Cyber Operations Readiness Assessment Network Engineer/Reviewer TekSynapCyber Operations Readiness Assessment Network Engineer/ReviewerFort Belvoir, Virginia$125,000–$160,000 / yearFull timeThis high-impact mission involves conducting advanced cybersecurity inspections, uncovering vulnerabilities across cutting-edge networks, and supporting real-time decision-making that directly shapes DTRA’s global operations. The salary range displayed is an estimate only and is not a guarantee of compensation or salary, and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements.
Cloud Network Engineer ApTaskCloud Network EngineerTysons, VARemoteDemonstrated knowledge of cloud networking and routing to include VPCs, subnetting, security groups, route tables, peering connections, direct connect direct connect gateway, IPv4, IPv6, dynamic routing, network performance monitoring, vpn, firewall, route53, MTIPS, and IPSEC. What Would Be Nice to Have : Professional certifications related to cloud networking, such as AWS Certified Advanced Networking - Specialty, Google Cloud Certified - Network Engineer, or Microsoft Certified: Azure Network Engineer Associate.
Network Engineer Tier 2 CACI International Inc.Network Engineer Tier 2Chantilly, VA$75,200–$158,100 / yearProvides equipment rack installation and equipment installations within a variety of locations that includes, but is not limited to, data centers, equipment rooms, communications closets, operations centers, and user workspaces. Provide transition planning and support for the migration of existing services between environments (migration to Cloud environments), migration of users from existing service platforms to new service offerings and transition of services into operations.
Sr. System Engineer - Configuration Management 2025-CAL-103 ICESSr. System Engineer - Configuration Management 2025-CAL-103Chantilly, VirginiaInterface with government stakeholders and technical teams to iteratively define change impacts and gain feedback through configuration lifecycle events such as Engineering Review Boards (ERBs). Support Configuration Management as part of broader systems engineering technical enabling tasks to maintain consistency, control, and traceability across lifecycle activities.
NewRecapitalization Network Engineer CACI International Inc.Recapitalization Network EngineerSterling, VA$75,200–$158,100 / yearPay 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. The role involves designing, implementing, troubleshooting, and maintaining complex IT networks, encompassing daily operations, monitoring, and problem resolution for all network architecture and devices.
Sr. Network Engineer (Tier III) PeratonSr. Network Engineer (Tier III)Washington, D.C.$135,000–$216,000 / yearFull timeWe support a secure, worldwide, high-performance communications network comprised of real-time interactive applications allowing complex national and worldwide communications. Bachelor’s degree in an IT related field and 8 years of related experience or a commensurate combination of education, training and experience, is required; four years of relevant experience in the above-cited duties may be substituted in lieu of a degree.
Network Engineer Tier 3 CACI International Inc.Network Engineer Tier 3Chantilly, VA$105,100–$231,100 / yearPay 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. The role involves designing, implementing, troubleshooting, and maintaining complex IT networks, encompassing daily operations, monitoring, and problem resolution for all network architecture and devices.
Unix Engineer -Sr. IT Systems Engineer PeopleNTech LLCUnix Engineer -Sr. IT Systems EngineerAlexandria, VAWe are looking for a highly skilled Unix Engineer (SME) to manage vulnerability assessment, patching governance, and secure operations across large-scale enterprise environments. Key Skills (SME Level): Expert-level experience in Unix/Linux administration with strong focus on vulnerability management and patching strategies .
Wireless Communications System Engineer I Quantum StridesWireless Communications System Engineer IFairfax, VirginiaSample Duties: Assists other senior communications system/RF engineers with engineering tasks including RF propagation analyses, interference analyses, microwave path propagations, frequency analysis and licensing requirements, analysis of RF subsystems, and prepare technical reviews both internally and with clients. Basic Experience: Must have a minimum of one (1) year of experience in land mobile radio, cellular radio, microwave radio, or wireless communications and information systems design and operations.
Cloud Network Engineer ANG SIGNAL LLCCloud Network EngineerWashington, DCFull timeWe are seeking a highly skilled and certified Cloud Network Engineer with deep expertise in designing, implementing, and managing complex network architectures across hybrid and multicloud environments. The ideal candidate will have hands-on experience with cloud migrations, network security, and cyber security, particularly within the U.S. Federal sector, including FISMA Moderate and High systems.
Cloud Network Engineer - Associate ANG SIGNAL LLCCloud Network Engineer - AssociateWashington, DCFull timeWe are seeking a highly skilled and certified Cloud Network Engineer with deep expertise in designing, implementing, and managing complex network architectures across hybrid and multicloud environments. The ideal candidate will have hands-on experience with cloud migrations, network security, and cyber security, particularly within the U.S. Federal sector, including FISMA Moderate and High systems.
Principal Integration Engineer SPM Leidos Holdings Inc.Principal Integration Engineer SPMBethesda, MD$131,300–$237,350 / yearThe SPM tracks the team's work to the completion of all deliverables accepted into a PI; coordinates with team members and customer sets to ensure stories have all the information needed to complete the work and that all necessary stories are created; and coordinate / socialize production changes and brief appropriate boards for deployment approval. Provide systems engineering and integration support to the government for the integration of newly developed Capabilities targeted for Integration test and operational environments and develop and deliver the processes to perform integration, staging, and release management for these Capabilities.
System Engineer I NoblisSystem Engineer IChantilly, Virginia$82,500–$128,925 / yearFull timeCompensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. Support the PM in multiple areas which include systems and mission engineering; system integration; program management; acquisition support; analytic support; technical analysis; user requirement management/development; architecture; and customer outreach and support.
System Engineer II NoblisSystem Engineer IIChantilly, Virginia$90,700–$141,775 / yearFull timeCompensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. Support the PM in multiple areas which include systems and mission engineering; system integration; program management; acquisition support; analytic support; technical analysis; user requirement management/development; architecture; and customer outreach and support.
System Integration Engineer LeidosSystem Integration EngineerGaithersburg, MarylandWorking alongside FAA personnel in live airport environments provides a unique opportunity to gain firsthand operational experience, build strong customer relationships, and see the direct impact of your work as TFDM is deployed across the National Airspace System. As part of this team, you'll collaborate with software engineers, system engineers, and FAA stakeholders to deliver capabilities that directly support air traffic controllers and airport operations across the country.