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1,288 system software engineer jobs at 418 companies in Frederick, MD

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Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
2mo
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System Software Engineer
Hanover, Maryland, United States
$187k-$252k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
10+ YOE10+ years of related software engineering experience; TS/SCI with Poly clearance; experience with SCRUM, Docker, Git, Jenkins, Nexus; Angular, Java, JavaScript; Linux (RedHat).
Angular, Java, JavaScript, RedHat, Scrum, Docker, Git, Jenkins, Nexus, Cypress, Linux
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1mo
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Software System Safety Engineer
Arlington, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOESecret clearance required. 2+ years developing complex systems including real-time/embedded software; SDLC, standards, OS and compiler knowledge; experience with Eclipse, Microsoft Visual Studio, or Rational Software; BS in CS/EE/Engineering required.
Eclipse, Microsoft Visual Studio, Rational Software, FPGAs, PLDs
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1mo
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Software System Safety Engineer
Arlington, Virginia, United States
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
2+ YOE2+ years developing complex or real-time embedded systems, Bachelor's in CS/EE/Engineering required, Secret clearance required, experience with SDLC, software development standards, Eclipse, Microsoft Visual Studio, Rational Software, OS and compiler tech.
Eclipse, Microsoft Visual Studio, Rational Software, FPGAs, PLDs, MIL-STD-882, AI/ML
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1mo
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Principal Engineer, Ground System Software (R5199)
Washington, District of Columbia, United States
$220k-$330k/yr OnsiteFull Time
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
8+ YOEBachelor's in CS/Software/Systems/Computer Engineering, 8+ years software engineering, 3+ years architecture/technical leadership, proficiency in C#, TypeScript, Java, C++, SDLC, requirements management, version control and CI/CD, MBSE and systems engineering tools.
C#, TypeScript, Java, C++, Cameo Systems Modeler, MagicDraw, IBM DOORS Next, Jama Connect, Stell, JIRA, Confluence, CI/CD, Hivemind, Open Mission Systems, Universal Command & Control Interface
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5d
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System Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Base-2 Solutions
Base-2 Solutions: Delivers engineering and technology services for national security.
14+ YOE14+ years systems engineering experience, strong software development, requirements management, project management, Top Secret/SCI with polygraph, bachelor's in related field (or equivalent experience), outstanding communication and coordination skills.
GhostMachine, QTA, DoDAF, SOA
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2d
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Senior Software Engineer – Training System Software (Onsite)
Sterling, Virginia, United States
$96k-$182k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEU.S. citizen with active transferable Secret clearance, 5+ years software engineering experience (3+ with advanced degree), strong C++, agile experience, Visual Studio, and simulation/training systems exposure.
C++, Visual Studio, Win32/Win64 APIs, Python, Perl, GIT, SVN, ClearCase, JIRA, Confluence, Crucible, Bamboo
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1mo
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System Engineer (Multiple Levels)
Fort Meade, Maryland, United States
$132k-$290k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
0+ YOETS/SCI with Polygraph required; BS in systems-related field required; experience levels vary by level (0–20+ years); systems engineering, DoDAF/SOA, information assurance, and SETA experience; desired AWS, Zero-Trust, Agile, hardware and software engineering.
DoDAF, SOA, AWS, Agile
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2mo
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System Engineer-Software Management Support (GC-2)
Annapolis Junction, Maryland, United States
$190k-$215k/yr OnsiteFull Time
Legato
Legato: Delivers IT engineering and cybersecurity services to defense agencies.
14+ YOEStrong system engineering background; TS/SCI w/ Polygraph; 14+ years of relevant experience; BS in a related field; 5 years experience may substitute for degree.
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2mo
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System Engineer Level 1
Annapolis Junction, Maryland, United States
OnsiteFull Time
Jovian Concepts
Jovian Concepts: Provides technical services and engineering to the intelligence community.
7+ YOETS/SCI clearance with Polygraph; 7+ years Systems Engineering; Bachelor's in related technical field; 5 years experience substituting degree; experience in design, integration, testing, deployment of data center solutions for satellite systems.
RF, Signal Processing, Hardware, Software, Network, Data Center
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1mo
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Senior System Engineer
Washington, District of Columbia, United States
OnsiteFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
6+ YOEBachelor's in CS/Engineering,6+ years engineering enterprise/cloud systems,RMF and cybersecurity experience,build engineering and CI/CD expertise,containerization and IaC experience,Public Trust clearance eligibility required.
Jenkins, GitLab CI, GitHub Actions, Azure DevOps, Docker, Kubernetes, Terraform, CloudFormation
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1mo
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Senior Manager, System Operations Software
Bethesda, Maryland, United States
OnsiteFull Time
Telesat
TelesatNasdaq: TSAT: Operates satellites providing global communications and broadband internet services.
15+ YOE10+ MgmtBS/MS in a technical field; 15+ years software/systems engineering experience with 10+ years leading cross-functional engineering organizations; expertise in distributed systems, cloud-native architectures, CI/CD/DevOps, and AI-enabled development.
Kubernetes, CI/CD, DevOps, Agile, OSS/NMS, AI
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1mo
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System Integration Engineer
Manassas, Virginia, United States
$93k-$164k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Experience designing, implementing, testing, and debugging complex software; Linux and scripting/programming experience; system integration, verification/validation, and technical planning; U.S. citizenship able to obtain DoD Secret clearance.
Linux, C++, Bash, Csh, Jira, Confluence, Git, Jenkins, MATLAB, DevOps
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4w
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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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3d
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System Development Engineer, Pyxis ADC
Arlington, Virginia, United States
OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
2+ YOEActive TS/SCI clearance required; bachelor’s degree or CSSLP; 2+ years professional software development; 4+ years systems engineering/admin experience with networking, storage, and operating systems; proficiency in modern programming languages and CI/CD.
C++, C#, Java, Python, Golang, PowerShell, Ruby
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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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2w
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Embedded Operating System Software Developer – Level 3 or 4
Linthicum, Maryland, United States
$109k-$204k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEExperience developing embedded real-time systems in C/C++ and Python, embedded OS experience, Yocto/Linux and Bash scripting, FPGA/VHDL knowledge, software integration and debugging, ability to obtain Top Secret/SCI clearance.
C, C++, Python, Yocto, Bash, Linux, VHDL, Zephyr, Jira, Confluence, Bitbucket
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1w
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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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Sr Software Engineer - System (Herndon, VA, US, 20171)
Herndon, Virginia, United States
HybridFull Time
Hubbell
HubbellNYSE: HUBB: Designs and manufactures electrical products and utility infrastructure solutions.
5+ YOEBachelor's in engineering or CS and 5+ years software engineering experience; strong OOP (Java, C#), Linux/Unix, REST services, Spring/Hibernate, SQL databases, IoT protocols (MQTT/CoAP/HTTP), Kafka, and utility domain experience.
Java, C#, Linux, Unix, Spring, Hibernate, SQLServer, MySQL, RESTful APIs, MQTT, CoAP, HTTP, Kafka, JDBC, MVC
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2w
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Software Engineer
Fairfax or Austin or Melbourne or Denver
$82k-$172k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEU.S. citizen able to obtain DoD clearance, bachelor’s in STEM or equivalent, 5+ years software engineering experience, experience with distributed systems, CI/CD, DevSecOps, and AI-assisted development tools.
Claude Code, AI agents, CI/CD
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2w
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Embedded Operating System Software Developer – Level 3 or 4
Linthicum Heights, Maryland, United States
$109k-$163k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
5+ YOEExperience developing embedded real-time systems in C, C++, and Python; experience with embedded OS, Yocto, Linux, VHDL/FPGA, Bash scripting, software configuration management, and ability to obtain U.S. Top Secret/SCI clearance (U.S. citizenship required).
C, C++, Python, Yocto, Bash, Linux, VHDL, Zephyr, Jira, Confluence, Bitbucket
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