173 software systems engineer jobs at 109 companies in Townsend, DE

PromotedHiringCafe
Founding Backend / Infra Engineer
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
2mo
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Systems Engineer
Aberdeen Proving Ground or Fort Belvoir or Huntsville or Austin or Tobyhanna Army Depot or Letterkenny Army Depot or Lakehurst
OnsiteFull Time
Envision Innovative Solutions
Envision Innovative Solutions: Provides technical engineering and mission support to government agencies.
5+ YOE5+ years of systems engineering; strong ability to design, integrate and test complex hardware/software systems; gather requirements and document configurations.
1w
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Systems Engineer
Cockeysville, Maryland, United States
$110k-$160k/yr OnsiteFull Time
Saft
SaftEuronext Paris: TTE: Manufacturer of high-performance batteries and energy storage systems.
10+ YOEBachelor's in engineering, 10+ years systems design experience with electrical controls/sensors/software, Simulink/Model-Based Design/Visio experience, aviation and battery experience; must be US citizen or green card holder.
Simulink, Model-Based Design, Visio
2w
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Systems and Software Developer 4
Halawa or Aberdeen Proving Ground
$53k-$106k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOEAssociate degree or 2-year technical school (or 15 years relevant experience in lieu of education), active TS/SCI clearance, minimum 10 years experience, ability to research, design, develop, test, and maintain software and databases; up to 10% local travel.
1mo
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Software Engineer - Combat Systems
Camden or Mount Laurel
$75k-$136k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
2+ YOEBachelor's degree in CS/CE (or equivalent) with 2+ years' experience, proficiency in C++, SDLC experience, Git, software testing/integration, ability to obtain/maintain U.S. DoD SECRET clearance.
C++, Git, Docker, Kubernetes, shell scripting
2mo
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Staff Systems Engineer
Aurora or Ypsilanti or Philadelphia
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOETS/SCI with poly; Bachelor's in CS, systems engineering, IT, or related field; 5+ years in software or systems engineering; strong cross-organizational communication; ability to develop requirements, test procedures, and traceability; experience with Scrum/Agile; IAT Level II or III certification.
2mo
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Software Engineer - RF Electronic Warfare Systems
Aberdeen Proving Ground, Maryland, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: Provides advanced technology and mission support for government agencies.
5+ YOE RF EW concepts, software-defined radios, Python/MATLAB/C+/VHDL, Linux, security clearance required.
Python, MATLAB, C+, VHDL, GNU Radio, Linux, Software-Defined Radios
2mo
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Systems & Applications Engineer
Aberdeen Proving Ground, Maryland, United States
$150k-$174k/yr OnsiteFull Time
Sigmatech
Sigmatech: Provides specialized engineering, technical, and programmatic support for government agencies.
10+ YOEBachelor's or Master's in computer science/engineering; 10+ years related experience; Secret clearance with ability to obtain Top Secret; cloud, data engineering, and software development expertise.
Python, Java, Cloud Platforms, ETL Tools, Message Brokers, API Gateways, Power BI, Kibana, Data Warehouses, Data Mesh, Data Lakes
2mo
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Software Engineer - RF Electronic Warfare Systems
Aberdeen Proving Ground, Maryland, United States
$112k-$179k/yr OnsiteFull Time
Peraton
Peraton: National security and mission-critical government technology services provider.
5+ YOEBS or MS in a related field; 5 years (BS) or 3 years (MS) experience; 0 years with PhD plus 4 years experience accepted in lieu; RF/ECW knowledge; software and firmware development.
VHDL, Python, MATLAB, C++, GNU Radio, Linux, Ettus SDR, Epiq
3mo
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Sr. Systems Engineer
Aston, Pennsylvania, United States
$115k-$130k/yr OnsiteFull Time
Curtiss-Wright
Curtiss-WrightNYSE: CW: Engineers and manufactures critical components for aerospace and defense.
7+ YOEDesign, develop, and integrate complex aircraft arresting systems; experience with electronic controllers, software/firmware for motion control; 7+ years preferred; US citizenship required.
MATLAB, NI, SCADA, PLC, HMI
4w
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Lead Software Engineer-AI
Columbus or Wilmington
OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
7+ YOE7+ years applied software engineering experience; strong system design and production engineering skills; proficiency in Python or TypeScript; experience with agent frameworks (e.g., LangChain, LlamaIndex), LLM API integration, cloud-native systems, and evaluating reliability/observability.
Python, TypeScript, LangChain, LlamaIndex, AutoGen, CrewAI, Cloud Foundry, GKP, Jules CI/CD, TrueCD, Sophia auth
2w
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Sr. Specialist, Systems Engineering (System/Software) (40367)
Camden, New Jersey, United States
$107k-$198k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
4+ YOEBS with 6+ yrs or MS with 4+ yrs in systems/computer/electrical/mechanical engineering; systems engineering, requirements, verification, C/Assembly experience; DOORS and JIRA familiarity; technical writing and security-clearance eligibility.
DOORS, JIRA, Visual Studio IDE, Texas Instruments Code Composer Studio IDE, Python IDE, Keil uVision IDE, Intel Quartis FPGA IDE, Atlassian Jira, Confluence, Bitbucket, Fisheye, Crucible, JTAG/ICE, SVN, PostGRE SQL, IBM DOORs, GIT, C, Assembly, C++, C#, ARM, DSP
1mo
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Lead Software Engineer
Newark, Delaware, United States
$128k-$201k/yr OnsiteFull Time
Hologic
HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.
6+ YOE6+ years software engineering experience building cloud and edge systems; experience in regulated environments, secure development practices, QMS familiarity, AI integration, Agile and version control proficiency; degree in CS/SE/STEM.
Microsoft Azure, Google Cloud Platform (GCP), Agile
2mo
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Mid Level Software Engineer
Baltimore, Maryland, United States
$125k-$150k/yr HybridFull Time
BlackSea Technologies
BlackSea Technologies: Designs and manufactures autonomous maritime vessels and defense hardware.
3+ YOE3-7 years software engineering, strong C++, distributed systems, robotics/autonomy, AI-assisted development tools; APIs and networking experience.
C++, MAVLink, Protobuf, DDS, CAN, TCP/IP, serial, OpenAI Codex, Claude Code
1mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Systems Products and Solutions
Systems Products and Solutions: Provides aviation and ground sustainment services for defense agencies.
7+ YOESenior software engineer with DoD experience, specializes in biometric systems, secure coding, and Agile/DevSecOps.
Android, CI/CD, DevOps, DevSecOps, Security, Encryption
3mo
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Distinguished Engineer – Software / Embedded Systems Engineering
Coopersburg or Philadelphia
OnsiteFull Time
Lutron Electronics
Lutron Electronics: Designs and manufactures lighting and shading control systems.
5+ YOEBachelor’s degree in Computer Science or Electrical Engineering; 5+ years designing, developing, and shipping software/hardware; strong mentorship and communication skills.
Embedded Systems, Software Engineering
2mo
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Software Engineer
Baltimore or Annapolis
HybridFull Time
ExistX
ExistX: Transitions national security research into operational software and systems.
5+ YOE5+ years enterprise software development; BS in Computer Science or related field; backend languages Java/C/C++/Rust/Python; experience with scalable systems; strong documentation; cryptography or cloud knowledge preferred.
Java, C/C++, Rust, Python, Cryptol, Haskell, Docker, Kubernetes, AWS, Azure
1w
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Electrical Systems Engineer
Philadelphia, Pennsylvania, United States
$79k-$123k/yr HybridFull Time
Noblis
Noblis: Nonprofit science, technology, and strategy firm supporting government missions.
3+ YOEBachelor's degree in an engineering discipline, 3+ years experience, software testing and hardware troubleshooting experience, active DoD Secret clearance, US citizenship, valid US passport or ability to obtain one, ability to travel 20-30%, and meet physical shipboard requirements.
Versa Module Eurocard (VME), TCP/IP, UDP
3w
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Software Engineer
Frederick or Baltimore or Washington
$131k-$177k/yr HybridFull Time
WGS Systems
WGS Systems: Develops intelligence and surveillance systems for military and law enforcement.
3+ YOE3+ years embedded software experience with C/C++; experience with embedded Linux/Yocto/OpenWRT, RTOS (FreeRTOS, TI-RTOS), device drivers, board bring-up, system modeling; U.S. citizenship and ability to obtain government security clearance required.
C/C++, embedded Linux, Ubuntu, Arch, Yocto, OpenWRT, QSDK, TI-RTOS, FreeRTOS, VX Works, MS Windows, POSIX, javascript, TypeScript
1mo
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Software Engineer - Senior (contingent 045)
Aberdeen Proving Ground, Maryland, United States
OnsiteFull Time
Systems Products and Solutions: Provides logistics and technical services to defense agencies.
7+ YOESenior software engineer with DoD biometric systems experience; security clearance required; Agile/DevSecOps; Android apps; cybersecurity.
Android, DevOps, DevSecOps, CI/CD, Security testing, Encryption
6d
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Software Engineer
Philadelphia, Pennsylvania, United States
OnsiteFull Time
Green Expert Technology
Green Expert Technology: Provides engineering and technical services for government defense programs.
3+ YOEBS in CS/EE/CE,3–5 years software or control-systems experience,active DoD Secret clearance,proficiency in C/C++/C#/Java,Git/SVN,JIRA,EMB IDEs;able to travel up to 10% and work onsite at LBES ≥50%.
Microsoft.NET Framework, Windriver Workbench, Tornado IDE, Linux, C, C++, C#, Java, JIRA, Confluence, Git, SVN, Matlab, Labview, MS Access, SQL, PROFIBUS, MODBUS, IEC 61131-3, PLC