1,559 systems software engineer jobs at 445 companies in Rosslyn, VA
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Software Systems Engineer
Chantilly, Virginia, United States
$149k-$170k/yr OnsiteFull Time
9+ YOETS/SCI with polygraph, BS in STEM required, 9+ years software/systems engineering experience, familiarity with Agile/DevSecOps, systems lifecycle, and spacecraft or defense systems.
Agile, DevSecOps, Model-based systems engineering (MBSE), SysML
2mo
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Software Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
9+ YOEBachelor's in a technical discipline, 9+ years supporting software/systems engineering or integration, experience with systems engineering lifecycle, Agile/DevSecOps knowledge, aerospace/defense experience, active TS/SCI with CI Polygraph, U.S. citizenship.
Agile, DevSecOps, MBSE, SysML
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Software Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
9+ YOEBachelor's degree in a technical discipline,9+ years supporting software/systems engineering,experience with requirements,design,integration,test,knowledge of Agile/DevSecOps,TS/SCI clearance and polygraph required.
Agile, DevSecOps, Model-based Systems Engineering (MBSE), SysML
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Software Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
9+ YOEUS citizen with TS/SCI+poly, bachelor’s degree in a related engineering/computer science field, 9+ years supporting software/systems engineering including requirements, design, integration, test; knowledge of Agile, DevSecOps, and waterfall; space/aerospace experience; able to report onsite in Chantilly, VA.
Agile, DevSecOps
1w
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Principal Software Systems Engineer (Embedded Flight Systems)
Fairfax, Virginia, United States
$120k-$222k/yr OnsiteFull Time
9+ YOEBachelor’s degree in a related engineering field and 9+ years in software systems, embedded software, avionics, flight systems, or aerospace and defense development; experience with requirements, verification, and hardware/software integration.
agile
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Software Systems Engineer
Sterling, Virginia, United States
$79k-$163k/yr OnsiteFull Time
5+ YOETop Secret clearance with SCI eligibility; 5+ years systems engineering experience; DoD SELC and SDLC knowledge; bachelor’s degree or equivalent experience; strong communication.
JIRA, Mingle, SDLC, DevSecOps, CDRLs
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Software Systems Engineer
Sterling, Virginia, United States
$79k-$163k/yr OnsiteFull Time
5+ YOETop Secret clearance required; 5+ years systems engineering experience; bachelor’s in related field (or 5 additional years SE experience); experience across SELC, SDLC, integration, testing, agile, and DevSecOps; experience with JIRA and CDRL generation.
JIRA, Mingle, Cameo Systems Modeler, DevSecOps, UML, SysML, Model-Based Systems Engineering (MBSE), DSP, RF
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Software Systems Engineer
Chantilly, Virginia, United States
$117k-$176k/yr OnsiteFull Time
6+ YOEBachelors in STEM, 6+ years software engineering, hands-on development in Linux, coding in two+ languages (e.g., Java, C/C++), Agile and Atlassian tool experience, willingness to travel ~10%, and active TS/SCI clearance with U.S. citizenship.
JIRA, Confluence, BitBucket, SourceTree, Java, C++, Linux, Git, Subversion, Windows, IaaC, DevSecOps, AI/LLM
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Software Systems Engineer (JAMMEX)
Fort Meade, Maryland, United States
OnsiteFull Time
Experience with complex operating systems, enterprise application maintenance using vendor utilities, large telecommunications networks, and advanced scientific software; Secret clearance preferred.
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Principal Software Systems Engineer
United States or Arlington or Denver or Houston or Merritt Island
RemoteFull Time
15+ YOEBachelor's in STEM (Masters preferred). 15 years' experience with BS (12 with MS) in aerospace software systems, MBSE and requirements management (DOORS), ability to obtain government security clearance, US citizenship required.
Model Based Systems Engineering (MBSE), DOORS
3d
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Expert Software Systems Developer
Herndon or Falls Church or United States
$180k-$210k/yr OnsiteFull Time
9+ YOERequires active TS/SCI with Full Scope Poly, bachelor's degree or equivalent experience, and 9+ years in software development, backend integration, and systems development. Requires PowerShell and software language experience.
Windows PowerShell, Puppet, C2S, SQL, Ruby, Java, C++, .NET, API, Virtual Private Networking (VPN), IPSEC, SSL, PKI, LDAP
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Senior Systems/Software Engineer
Arlington, Virginia, United States
$104k-$166k/yr OnsiteFull Time
3+ YOERequires a qualifying engineering, computer science, physics, or related degree; 3–8 years of experience based on degree; C/C++, object-oriented development, software engineering, US citizenship, and ability to obtain Public Trust clearance.
C, C++, UNIX, IBM Rational Suite, RTCA DO-178B, RTCA DO-278, RTCA DO-254, DOORS, ClearCase, ClearQuest
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Senior Systems/Software Engineer
Arlington, Virginia, United States
$104k-$166k/yr OnsiteFull Time
8+ YOERequires a relevant engineering or computer science degree, 3–8 years of experience depending on degree, C/C++ and UNIX development, software assurance and testing expertise, US citizenship, and ability to obtain Public Trust clearance.
C, C++, UNIX, IBM Rational Suite, RTCA DO-178B/278/254, DOORS, ClearCase/ClearQuest
3mo
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Software Safety Systems Engineer
Hanover, Maryland, United States
$94k-$141k/yr HybridFull Time
5+ YOEBS in engineering/science; 5+ years in systems/safety/software/quality; proficient in C/C++/C#/Python/Java; able to produce safety plans; able to obtain DoD clearance; US citizen.
C, C++, C#, Python, Java, MIL-STD-882, VectorCAST, Jira, Github
3d
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Expert Software Systems Developer
Herndon or Virginia or United States
$180k-$210k/yr OnsiteFull Time
9+ YOEActive TS/SCI with full-scope polygraph, bachelor's in computer science or related field, and 9+ years in software development, backend integration, and systems development; additional experience may substitute for degree.
Windows PowerShell, Puppet, C2S, SQL, Ruby, Java, C++, .NET, VPN, IPSEC, SSL, PKI, LDAP
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Software and Systems Engineer
Chantilly or Aurora
$69k-$158k/yr OnsiteFull Time
Experience in systems engineering and MBSE, Agile, requirements definition and traceability, technical documentation, risk tracking, Top Secret clearance, HS diploma/GED, ability to obtain Security+ CE.
Jira, Confluence, Visio
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Software and Systems Engineer
Chantilly, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Experience in systems engineering/MBSE, Agile, requirements definition and traceability, technical documentation, Top Secret clearance required, HS diploma/GED, ability to obtain Security+ CE within 6 months.
Jira, Confluence, Visio
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Subject Matter Expert (SME) - Software Systems Engineer
Chantilly, Virginia, United States
$240k-$260k/yr OnsiteFull Time
10+ YOEActive TS/SCI clearance with polygraph; bachelor's degree plus 12+ years or master's degree plus 10+ years; recognized software systems engineering expertise, research, business capture, technical briefings, modeling, and low-level software mastery.
compilers, assemblers, operating systems
4d
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GovCloud Distributed Systems Software Engineer
Herndon or Bellevue or San Francisco or New York City
$149k-$224k/yr HybridFull Time
5+ YOERelated technical degree and 5+ years of backend software development. Requires Java, Golang, Python, or Ruby; distributed systems, critical services, Agile, TDD, AI development tools, and advanced prompt engineering experience.
Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, Alibaba Cloud, Cursor, Windsurf, Claude, OpenAI API, Spinnaker, Zookeeper, Terraform, Kubernetes, Docker, Mesos, Java, Golang, Python, Ruby, PostgreSQL, Claude Code, GitHub Copilot, Codex
1d
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Systems Software Engineer
Annapolis Junction, Maryland, United States
$140k-$165k/yr OnsiteFull Time
Requires U.S. citizenship, active security clearance with appropriate polygraph, DOD 8570 certification, successful background investigation and polygraph, and compliance with random drug testing.
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