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1,221 software systems engineer jobs at 402 companies in Frederick, MD

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Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Software Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
9+ YOEBachelor's in a technical field, 9+ years supporting software/systems engineering or integration, active TS/SCI with CI Polygraph, U.S. citizenship, experience with systems engineering lifecycle, Agile/DevSecOps, and aerospace/defense systems.
Agile, DevSecOps, waterfall, MBSE, SysML
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Software Systems Engineer
Chantilly, Virginia, United States
$149k-$170k/yr OnsiteFull Time
FTS International
FTS International: Providing engineering and mission support to the US Intelligence Community.
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
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1mo
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Software Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
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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2w
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Software Systems Engineer
Lanham, Maryland, United States
OnsiteFull Time
AST SpaceMobile
AST SpaceMobileNASDAQ: ASTS: Space-based cellular broadband network for standard mobile devices.
5+ YOEBachelor's in engineering or equivalent experience, 5+ years in software systems engineering, proficiency in C/C++, Python, experience with Confluence/SharePoint, Jira/Git, CI/CD, strong documentation and collaboration skills.
C, C++, Python, Confluence, Microsoft SharePoint, Jira, Git, CI/CD, MBSE
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2w
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Senior Software Systems Engineer
Falls Church, Virginia, United States
$102k-$213k/yr OnsiteFull Time
SOSi
SOSi: Provides technology and mission solutions for national security.
10+ YOERequires 10+ years in software architecture and systems engineering for defense, active Top Secret clearance (TS/SCI preferred), degree in computer or systems/software engineering, expertise in SoS, RF/tactical comms, and stakeholder coordination.
MOSA, MANET, Link-16, SATCOM, M&S
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3w
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Software Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
Systems Planning and Analysis
Systems Planning and Analysis: Provides technical and analytical support to national security agencies.
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
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1mo
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Software Systems Engineer
Sterling, Virginia, United States
$79k-$163k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
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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1mo
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Software Systems Engineer
Sterling, Virginia, United States
$79k-$163k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
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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2mo
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Senior Software Systems Engineer (Embedded Flight Systems)
Fairfax, Virginia, United States
OnsiteFull Time
Trident Systems
Trident Systems: Develops high-performance electronics for space and defense.
6+ YOEBachelor's degree in a related field; 6+ years in software systems engineering, embedded software, avionics, or flight systems; real-time embedded software experience; hardware/software integration; strong communication.
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2w
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Software Systems Engineer
Chantilly, Virginia, United States
$117k-$176k/yr OnsiteFull Time
The Aerospace Corporation
The Aerospace Corporation: Provides technical expertise and research for national space programs.
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 Engineer–Systems (Associate/Experienced)
Chantilly or Aurora or Mesa
$94k-$171k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
1+ YOEActive U.S. Top Secret clearance, bachelor\u0002s degree, 1+ years systems/software engineering experience, familiarity with Agile/SAFe, and customer briefing skills.
Jira, Confluence, Crucible
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1w
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Software Systems Engineer (JAMMEX)
Fort Meade, Maryland, United States
OnsiteFull Time
Virtual Technologies Group
Virtual Technologies Group: Provides managed IT, cybersecurity, and cloud infrastructure solutions.
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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2w
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Principal Software Systems Engineer
United States or Arlington or Denver or Houston or Merritt Island
RemoteFull Time
Airbus U.S. Space & Defense
Airbus U.S. Space & DefenseEuronext Paris: AIR: Provides satellite, helicopter, and cybersecurity solutions for U.S. defense.
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
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1d
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Software Engineer–Systems (Associate/Experienced)
Chantilly or Aurora or Mesa
$94k-$171k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
1+ YOEBachelor's degree or equivalent, active U.S. Top Secret clearance (willing to sit for CI polygraph),1+ years systems/software engineering experience, familiarity with Agile/SAFe, and customer briefing skills.
Jira, Confluence, Crucible, Microsoft Excel
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2mo
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Software Safety Systems Engineer
Hanover, Maryland, United States
$94k-$141k/yr HybridFull Time
Oceaneering
OceaneeringNYSE: OII: Global provider of engineered services for offshore energy industries.
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
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2w
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Software and Systems Engineer, Mid
Chantilly, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
Systems engineering and software development lifecycle experience; Agile/Scrum and requirements definition; strong documentation and requirements traceability; Top Secret clearance and bachelor\u0002s degree required.
Jira, Confluence, Visio
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2w
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Software and Systems Engineer, Mid
Chantilly, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Experience with systems engineering and software development lifecycle, Agile/Scrum, requirements definition and documentation, risk and technical debt management, and possession of Top Secret clearance; bachelor's degree required.
Jira, Confluence, Visio
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3w
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Senior Software Developer (Systems Software)
Columbia or Fort Meade
$146k/yr OnsiteFull Time
Endictus
Endictus: Provides cybersecurity and systems engineering services to federal agencies.
10+ YOEActive TS/SCI with CI Polygraph; degree in CS or related field; extensive systems software and CNO experience; proficiency in C/C++, Java or Python; strong OS, networking, distributed systems, and software engineering skills.
C, C++, Java, Python
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3mo
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Software and Systems Engineer
Chantilly or Herndon or McLean
OnsiteFull Time
M1 Technology
M1 Technology: Developing mission-critical technology for the U.S. intelligence community.
5+ YOE5+ years professional software development; Python or Rust; Bash; distributed systems; CI/CD; Linux; strong communication.
Python, Rust, Bash, PostgreSQL, GraphDB, DynamoDB, AWS CDK, Docker, GitLab CI, Jenkins, CloudWatch, pytest, robot, behave, Linux, Embedded Linux
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1mo
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Software Systems Engineer
Washington or Virginia or United States
RemoteFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
8+ YOEBachelor's in CS/InfoSec or related, 8+ years IT infrastructure/systems experience, 3+ years with large scalable web/mobile apps, network hardware/software experience, ability to travel within DC Metro and CONUS.
TCP/IP
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