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83 software engineer operating systems jobs at 48 companies in Washington, DC

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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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1mo
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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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2mo
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Systems Engineer, Operations Automation
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, 5+ years software/systems engineering (spacecraft or real-time systems preferred); experience defining autonomy, FDIR, ConOps, and specifying FSW/GSW interfaces; strong communication and cross-functional leadership.
Python, C/C++
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3mo
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Software Engineer (Operational Systems Engineer)
Chantilly, Virginia, United States
$113k-$238k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOEActive TS/SCI with polygraph required; 7+ years engineering/developing experience; proficiency with Debian, Python, SQL, Linux, ProxMox, Docker, Rancher, Kubernetes; CI/CD and API development experience; A&A support experience.
Debian, Python, SQL, Linux, ProxMox, Docker, Rancher, Kubernetes, CI/CD
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Ground 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 in a technical discipline; 9+ years supporting ground systems engineering in the defense/intelligence space domain; experience with system integration, testing, software lifecycle, configuration management, and operational mission support.
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1mo
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Systems Engineer
Alexandria, Virginia, United States
$85k/yr OnsiteFull Time
Q-Free
Q-Free: Provides technology for intelligent transportation and traffic management.
3+ YOE3+ years systems engineering or technical support experience; strong troubleshooting across hardware, software, networking and servers; experience in 24/7 operational environments; excellent communication and documentation skills.
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1w
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Software Engineer SWE1
Hanover, Maryland, United States
$136k-$252k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures advanced aerospace, defense, and security systems.
Requires TS/SCI clearance, software development experience, design, testing, and debugging skills, knowledge of multiple programming languages, and familiarity with Linux operating systems.
Linux, Java
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2w
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Lead Software Engineer - Physical AI (Defense)
Arlington, Virginia, United States
$150k-$250k/yr OnsiteFull Time
Applied Intuition
Applied Intuition: Developing software and simulation infrastructure for autonomous vehicles.
6+ YOERequires 6+ years of software engineering experience, strong C++ or Python skills, broad software, operating system, and hardware experience, complex system integration, problem-solving, communication, U.S. citizenship, and eligibility for security clearance.
C++, Python, Axion, Acuity
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1mo
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Sr. Software Engineer II, AI Platform
United States or San Francisco or New York City or Washington
$131k-$198k/yr RemoteFull Time
Samsara
SamsaraNYSE: IOT: Connected Operations Cloud platform for physical operations and IoT.
6+ YOE6+ years software engineering experience building and operating large-scale backend/platform systems; hands-on GenAI and LLM integration; experience with Python/Java/Go; distributed systems and workflow design expertise.
Python, Java, Go, LangChain, OpenAI SDK, MCP, LLMs, Salesforce, Gong, Outreach, Tofu
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1mo
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Lead Software Engineer-AI Foundation Services
Plano or Jersey City or Wilmington or McLean
$152k-$215k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience; hands-on coding in Python, Java, or Go; experience with Terraform, Kubernetes, containers, CI/CD, observability, system design, and production operations.
Python, Java, Go, Terraform, Kubernetes, containers, CI/CD
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GEOINT Ground Processing Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
4+ YOERequires active TS/SCI with poly; 4–9+ years relevant experience depending on degree; experience with GEOINT ground/space architectures, mission processing, IC/DoD acquisition, and ground software or mission operations.
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6d
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Embedded Software Engineer II
Germantown, Maryland, United States
$72k-$98k/yr HybridFull Time
Wabtec
WabtecNYSE: WAB: Manufacturer of equipment and digital solutions for rail transportation.
1+ YOEBachelor’s degree in a related engineering field and 1–3 years of experience. Requires C/C++, Bash or Python, Linux or Unix-based real-time operating systems, software design, IP protocols, and hardware interfaces.
C, C++, Bash, Python, Linux, Unix, QNX, FreeRTOS
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1mo
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Software Data Engineer Mid-Level
Laurel, Maryland, United States
$140k-$195k/yr OnsiteFull Time
Integrity Technology Consultants
Integrity Technology Consultants: Provides engineering and management consulting solutions to US national security.
3+ YOETS/SCI with full-scope polygraph; 3–8+ years software engineering experience depending on degree; experience with Open Stack cloud, Linux, Python, IT operations; strong communication and systems engineering background.
Open Stack, Linux, Python, PowerShell, AWS, Microsoft Azure
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1mo
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Principal Software Engineer TS/SCI w/Poly
Fort Meade, Maryland, United States
$200k-$255k/yr OnsiteFull Time
Amentum
AmentumNYSE: AMTM: Global provider of engineering, technical, and mission support services.
7+ YOERequires TS/SCI with polygraph, advanced software engineering skills, Python, C/C++, x86 Assembly, operating system internals, algorithms, reverse engineering, and relevant experience based on degree level.
Python, C, C++, Assembly, x86
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4d
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Backend Software Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$130k-$220k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
U.S. Person status, ability to obtain and maintain a U.S. security clearance, and backend/cloud engineering experience with scalable systems, infrastructure, reliability, and operations.
Microsoft Azure, Python, Terraform, Kubernetes, TypeScript, React, CI/CD
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3w
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Ground Software Engineer, Space
Chantilly, Virginia, United States
$166k-$220k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
4+ YOE4+ years engineering experience; strong programming in Java/Python/C++/Rust/Go/JavaScript; experience with Space C2 or spacecraft operations; strong systems thinking and communication; eligible for U.S. Secret clearance.
Java, Python, C++, Rust, Go, JavaScript, Lattice OS, Kubernetes, OpenShift, Helm
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1mo
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Backend Software Engineer - Sensors and Tracking
Seattle or Arlington
OnsiteFull Time
Rune Technologies
Rune Technologies: Develops AI-powered logistics and sustainment software for military operations.
4+ YOE4+ years software engineering experience, hands-on hardware/sensor data integration, production backend systems, proficiency in Python or Go, ability to operate in ambiguous environments.
Python, Go
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2w
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Staff Software Engineer, Platform
San Francisco or New York or Washington
$240k-$300k/yr OnsiteFull Time
Peregrine
Peregrine: Data integration and analytics platform for public safety agencies.
8+ YOE8+ years building and operating cloud infrastructure, hands-on ownership of platform/networking/traffic systems, strong security and reliability experience, on-call and incident response experience, degree or equivalent.
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5d
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Staff Software Engineer - Protect
San Francisco or Seattle or New York City or Washington, D.C. or London or Amsterdam
$208k-$274k/yr HybridFull Time
Plaid
Plaid: Provides financial data connectivity and payment infrastructure via APIs.
8+ YOETypically 8+ years building and operating backend or distributed systems at scale, with hands-on coding, strong product judgment, and experience translating ambiguous customer problems into measurable deliverables.
Jupyter, Apache Spark, Tecton
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3w
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Lead Software Engineer, Back End (Cloud Operations Resilience Engineering)
Plano or McLean or Richmond or Canada or United Kingdom or Philippines
$179k-$225k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Provides credit card, banking, and auto loan services.
4+ YOEBachelor's degree, 4+ years of professional software engineering experience, and 1+ year of cloud computing experience. Leads developers and works with distributed systems, databases, and cloud technologies.
Java, Python, SQL, Node, Go, Scala, RDBMS, NoSQL, Docker, Kubernetes, AWS, Microsoft Azure, Google Cloud, MapReduce, Hadoop, Hive, EMR, Kafka, Spark, Gurobi, MySQL
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