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2,165 c developer jobs at 522 companies in Frederick, MD

3mo
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C/C++ Software Engineer
McLean, Virginia, United States
$97k-$162k/yr OnsiteFull Time
American Systems
American Systems: Providing engineering and IT solutions to federal government agencies.
8+ YOEU.S. citizen; secret clearance; Bachelor's in CS/Engineering/Math/Physics (Master’s preferred); 8+ years in real-time, Linux C/C++ systems; sensor data processing and radar/surveillance experience.
C/C++, Linux, Perforce, Git, Radar, Sensor Fusion, GIS
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1mo
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C++ Application Developer
Fairfax, Virginia, United States
OnsiteFull Time
NASK
NASK: Provides mission-critical solutions to intelligence and defense clients.
5+ YOEActive TS/SCI clearance, Bachelor’s or higher in CS/CE/EE, 5+ years desktop app development, strong C++, Qt UI experience, Linux environment familiarity, Git proficiency.
Qt, GTK, WPF, Java/Swing, Linux, Git, AWS, Docker, Kubernetes, Grafana, Loki
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2mo
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C++ Software Developer
Arlington, Virginia, United States
OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
3+ YOE3+ years software development with modern C++, SQL experience, distributed source control (Git/Mercurial), Bachelor's (or Associate + experience), active Secret clearance required (US citizen), ability to produce technical documentation.
C++, Visual Studio, UML, SQL, SQLite, Git, Mercurial, Python, Windows, Linux
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21h
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Senior C++ Software Engineer
Columbia, Maryland, United States
OnsiteFull Time
HEICO
HEICONYSE: HEI: Manufactures specialty electronic components and niche aircraft parts.
Deep C and C++ fundamentals, multithreading, debugging on Linux, Git and CI/CD (GitLab, Docker, Make), automated testing with gtest, and U.S. citizenship with ability to obtain Top Secret clearance.
C, C++, Git, GitLab, Docker, Linux shell scripting, Make, CMake, Google Test (gtest), Python, JavaScript, React
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3w
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Cleared C# / .NET Developer
Washington, District of Columbia, United States
$91k-$185k/yr OnsiteFull Time
Accenture Federal Services
Accenture Federal ServicesNYSE: ACN: Provides technology and consulting services to U.S. federal agencies.
3+ YOEBachelor's degree with 3+ years developing software using C#/.NET, ASP.NET, Entity Framework, and SQL Server; unit testing, secure coding, Git/GitLab; active Top Secret clearance and US citizenship; onsite Washington, DC.
C#, ASP.NET, Entity Framework, SQL Server, REST, RPC, Git, GitLab, AWS, Azure, Docker, CI/CD
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3w
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C#/.NET Developer
Washington, District of Columbia, United States
$151k-$156k/yr OnsiteFull Time
E-INFOSOL
E-INFOSOL: Provides secure cloud and cybersecurity solutions for government agencies.
8+ YOEActive Top-Secret clearance, Bachelor’s in IT, minimum 8 years experience with 3–5 years using C#/.NET; experience with ASP.NET, Entity Framework, Microsoft SQL Server, REST/RPC, Git/GitLab, unit/integration testing, and secure coding practices.
C#, .NET, ASP.NET, Entity Framework, Microsoft SQL Server, REST, RPC, Git, GitLab, AWS, Azure, Docker, CI/CD
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3w
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C# / .Net Developer
Washington, District of Columbia, United States
$125k-$155k/yr OnsiteFull Time
Synergy ECP
Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.
8+ YOEBachelor's degree and 8+ years software engineering experience; 3–5 years with C#/.NET, ASP.NET, Entity Framework, and Microsoft SQL Server; experience with REST/RPC, unit/integration testing, secure coding; active TS/SCI clearance and U.S. citizenship required.
C#, .NET, ASP.NET, Entity Framework, Microsoft SQL Server, Git, GitLab, Docker, AWS, Azure, REST, RPC, CI/CD
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3mo
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C++ Engineer- FreeWheel- Onsite (Hybrid)- Chicago, IL, Denver, CO, Reston, VA or New York, NY
Chicago or New York or Reston or Denver
$110k-$188k/yr HybridFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
2+ YOEBachelor’s degree in computer science or related field; 2+ years in C/C++; experience with distributed systems and software development lifecycle.
C++, C, Database design, Network programming, Distributed systems, Agile, SDLC
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3w
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.NET C# Developer
Washington, District of Columbia, United States
$145k-$151k/yr OnsiteFull Time
Cayuse Holdings
Cayuse Holdings: Tribally-owned provider of IT and professional services.
3+ YOE3+ years C#/.NET experience, ASP.NET, Entity Framework, SQL Server; Bachelor's degree preferred or 8+ years experience; active Top Secret clearance; unit/integration testing and secure coding experience.
C#, .NET, ASP.NET, Entity Framework, SQL Server, REST, RPC, Git, GitLab, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Acrobat, Azure, AWS, Jira, Azure DevOps
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3d
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C++ Mid-Level SW Developer
Bethesda, Maryland, United States
$73k-$149k/yr HybridFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
3+ YOESecret clearance, CompTIA Sec+, 3+ years professional software development, strong C++ expertise, cross-platform (Windows/Linux) development, effective communicator.
C++, Windows, Linux
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1w
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Senior C++ Software Engineer (Defense Autonomy)
Washington or Arlington
$150k-$200k/yr OnsiteFull Time
Applied Intuition
Applied Intuition: Developing software and simulation infrastructure for autonomous vehicles.
5+ YOE5+ years C++ (C++20) experience, strong algorithms and multi-agent/optimization background, proficiency with Bazel, Docker, Linux, ability to obtain U.S. SECRET clearance, BS/MS or equivalent experience.
C++20, Bazel, Docker, RHEL, Ubuntu, Linux
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2d
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Senior Software Engineer - Full Stack C# Developer
Hanover, Maryland, United States
$111k-$150k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
8+ YOEC# full-stack web development with ASP.Net, web libraries (jQuery, Bootstrap, Knockout), database experience (MongoDB), 8+ years experience, US citizenship and Top Secret SCI+Poly required.
C#, ASP.Net Web Forms, ASP.Net MVC, Java, MongoDB, HTML, CSS, JQuery, Bootstrap.js, Knockout.js, IIS
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3d
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C++ Mid-Level SW Developer
Bethesda, Maryland, United States
$73k-$149k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
3+ YOESecret clearance and CompTIA Sec+ (or ability to obtain), 3+ years professional software development, strong C++ skills, cross-platform (Windows/Linux) experience, and good communication.
C++
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3w
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C Programmer
Pittsburgh or Arlington
OnsiteFull Time
Carnegie Mellon University
Carnegie Mellon University: Global research university providing higher education and conducting scientific research.
2+ YOEExpert C programming and bash scripting; experience with Python, software development lifecycle, problem solving, and working independently or on teams. BS/MS/PhD plus relevant years of experience as specified; ability to obtain Department of War security clearance; U.S. work authorization required.
C, Python, bash, Docker, Linux
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2mo
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C++ Software Engineer - Active Secret clearance required
Middletown or Manassas
$95k-$106k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Designs and manufactures defense and mission-critical technology solutions.
2+ YOEBachelor’s degree in Software Engineering or related field; 2+ years of experience; US citizenship; active Secret clearance; on-site in RI or VA; C++ and networking skills; Agile experience preferred.
C++, Networking, Socket Programming, Linux, QT Framework, Kubernetes, Docker, Git, AI
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3w
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C Programmer
Pittsburgh or Arlington
OnsiteFull Time
Software Engineering Institute
Software Engineering Institute: Developing software and AI engineering for national security.
2+ YOEExpert C programming and bash scripting, strong problem-solving, ability to learn new languages, BS/MS/PhD in quantitative discipline with 8/5/2 years' experience respectively, ability to obtain DoD security clearance, periodic travel.
C, Python, Bash, Docker, Linux
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2mo
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Engineer II, C++ Systems Integration (R4021)
Washington, District of Columbia, United States
$95k-$143k/yr OnsiteFull Time
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
2+ YOE2+ years experience with a Bachelor's degree; strong modern C++ (C++14/17/20); Linux; Python; CI/CD; Docker; TS/SCI/Secret clearance preferred.
C++, Python, Linux, Docker, GitLab CI/CD, CMake, Conan, gRPC, REST, ZeroMQ
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1mo
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Senior C++/Python Software Engineer - Clearance Required
Hanover, Maryland, United States
$151k-$266k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
15+ YOETS/SCI with poly required, Bachelor's in CS or equiv, 15+ years software engineering experience, strong Python and C/C++ skills, scripting (Bash/awk/sed/PowerShell), RF signals familiarity, EM/STM32 experience preferred.
Python, C/C++, Bash, awk, sed, Microsoft PowerShell, STM32CubeMX, STM32CubeIDE, STM32CubeProgrammer, STM32CubeMonitor, Raspberry Pi4, Raspberry Pi5, FieldFox, Spectrum analyzer, multimeter
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1mo
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C++ Software Engineer
Laurel, Maryland, United States
$100k-$245k/yr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
Bachelor's in CS/CE or related, demonstrated experience developing maintainable software using modern C++ (C++17+), strong communication skills, ability to obtain Interim Secret and ultimately Top Secret clearance, and passion for learning.
C++ 17, Git, CMake, Conan, GitLab, Docker, GoogleTest (GTest), AFSIM, Java, Python, MATLAB
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1mo
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C++ Software Engineer
Washington or Richmond or Atlanta or Austin
RemoteFull Time
iboss
iboss: Provides cloud-delivered network security and threat protection services.
7+ YOE7+ years of software development experience in large-scale networking; TCP/IP, HTTP, DNS; distributed architectures; Unix; Agile; strong SQL and data modeling.
C++, C, SQL, Unix, TCP/IP, HTTP, DNS, Distributed systems, Agile
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