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1,384 software engineer c jobs at 342 companies in Leesburg, VA

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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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Mid-level C++ Software Engineer
Manassas, Virginia, United States
$105k-$115k/yr OnsiteFull Time
General Dynamics Mission Systems
General Dynamics Mission SystemsNYSE: GD: Engineers secure communication and mission-critical defense technology systems.
2+ YOEBachelor's in software engineering or related STEM plus 2 years (or MS plus 6 months), U.S. citizenship, DoD Secret clearance, proficiency in C/C++, Linux, strong problem-solving and communication skills.
C/C++ programming languages, Linux, Docker, Kubernetes, MATLAB
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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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2mo
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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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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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C++ Software Engineer
Cambridge or Arlington or Seattle
$90k-$210k/yr OnsiteFull Time
MORSE Corp
MORSE Corp: Develops AI and autonomous systems for US national security.
5+ YOERequires 5+ years of software development experience, C++ expertise, Python proficiency, hardware and embedded systems knowledge, Docker/Docker-compose/Kubernetes experience, and a Computer Science degree or equivalent experience.
C++, Python, Docker, Docker Compose, Kubernetes, Scrum, Kanban
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2mo
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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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2mo
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Software Engineer (C++ / Networking)
Herndon, Virginia, United States
$90k-$110k/yr OnsiteFull Time
Cubic
Cubic: Develops defense training systems and public transit fare technology.
2+ YOESenior C++ engineer with networking experience; hands-on, building reliable, performant networked systems.
C++, Java, C#, Unix, Windows, IDEs
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2w
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Software Engineer - C#/ BCS
Reston, Virginia, United States
OnsiteFull Time
Securiport
Securiport: Provides biometric and big data solutions for global border security.
3+ YOE3–5 years software development experience with C#/.NET, SQL Server, APIs/microservices, Git, unit testing; bachelor's in CS or equivalent experience preferred.
C#, .NET, .NET Core, SQL Server, gRPC, REST, Git, GitHub, Azure DevOps, CI/CD
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2mo
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Senior Staff Software Engineer, C++ Software Integration (R4018)
Washington, District of Columbia, United States
$181k-$271k/yr OnsiteFull Time
Shield AI
Shield AI: Develops autonomous flight software and unmanned aircraft for defense.
10+ YOEMinimum 7-10+ years experience in C++, distributed systems, CI/CD, and hardware/software interfaces; expert in C++14/17/20; strong Linux experience; active SECRET clearance; leadership experience.
C++, Python, Linux/Unix, Docker, GitLab CI, Conan, CMake, gRPC, REST, ZeroMQ
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1mo
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Lead C++ Software Engineer - (Reston, VA - Hybrid) - FreeWheel
Reston, Virginia, United States
HybridFull Time
Comcast
ComcastNASDAQ: CMCSA: Provides global telecommunications, media content, and entertainment services.
7+ YOE7+ years experience designing and operating large-scale online services; strong C/C++ or Golang, Linux, cloud and containerization (AWS,Kubernetes) expertise; distributed systems, networking and excellent problem-solving skills.
AWS, Kubernetes, Nginx, C++ Programming Language, Golang, Linux
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2mo
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C++ Software Developer
Fort Meade or Laurel
OnsiteFull Time
Orbis Operations
Orbis Operations: Defense and intelligence firm providing situational awareness and training.
3+ YOEC++ on Unix with multithreading, Bash/Python scripting, GCC, POSIX/OpenMP, TS/SCI with polygraph; 3-8+ years SWE; CS degree
C++, Unix, Python, Bash, GCC, POSIX threads, OpenMP, SysV, Git, Jira, Confluence
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1mo
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Software Engineer
Arlington, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years software engineering experience; proficiency with C#, C, C++, .NET or JavaScript; bachelor's in CS or Computer Engineering; Secret clearance required; strong communication and problem-solving skills.
C#, C, C++, .NET, JavaScript, Java, React, NodeJS, Linux, Rust
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1mo
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Software Engineer
Arlington, Virginia, United States
$69k-$158k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
3+ YOE3+ years professional software engineering experience; Bachelor's in CS or Computer Engineering; Secret clearance; proficiency with C#, C, C++, .NET, JavaScript; experience with full-stack development and Linux preferred.
C#, C, C++, .NET, JavaScript, Java, React, NodeJS, Linux, Rust
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1mo
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Senior Software Engineer — C# / WPF
Arlington, Virginia, United States
OnsiteFull Time
CaseGuard
CaseGuard: Provides AI-powered redaction software for video, audio, and documents.
5+ YOEBachelor's in CS, 5+ years professional software development (3+ years .NET desktop), expert C#/.NET, deep WPF/XAML and multithreading, profiling/optimization, MVVM and SOLID, mentoring and Agile experience.
C#, .NET, WPF, XAML, TPL, async/await, FFmpeg, C/C++, P/Invoke, SignalR, WebSockets, REST APIs, MVVM
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4w
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Software Engineer
Carlsbad or Germantown
$117k-$185k/yr OnsiteFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
4+ YOE4+ years software engineering experience in C/C++ with Linux systems, multithreading, networking, scripting (Bash/Ansible/Python), and CI/CD tools; bachelor's in CS required.
C, C++, Linux, Bash, Ansible, Python, TCP/IP, OSPF, BGP, Jenkins, JIRA, Git, Perforce, Kubernetes, Containers, CI/CD, AWS, GCP, Claude, Copilot
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2w
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Software Engineer
Hanover, Maryland, United States
$140k-$160k/yr OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
7+ YOEUS citizen with TS/SCI with Poly, bachelor\u0002s degree in a technical field, minimum 7 years software engineering, full-stack experience with C/C++/Python, Kubernetes, Docker, and SWORD experience.
C++, C, Python, Kubernetes, Docker, SWORD
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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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1mo
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Senior Software Engineer (C++)
New York City or Washington or Vancouver or London or Galway or Budapest or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
Diligent
Diligent: Provides software for corporate governance, risk, and compliance management.
5+ YOE5+ years building secure, scalable services in C++; experience with cloud (AWS), infrastructure as code (CDK/Terraform), containers (Docker), CI/CD, SQL/NoSQL, security practices, AI/LLM tools and mentoring peers.
C++, AWS, CDK, Terraform, Docker, CI/CD, PostgreSQL, NoSQL, Angular, LLM, IAM
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1mo
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Software Engineer III (C++ Engineer)
Chantilly, Virginia, United States
OnsiteFull Time
Textron
TextronNYSE: TXT: Manufactures aircraft, defense systems, and industrial specialized vehicles.
5+ YOEBachelor's in CS/CE, 5+ years relevant experience, strong C++ and multi-threading skills, Linux/Windows experience, Azure DevOps/Jira/Git/Docker familiarity, eligible for U.S. Top Secret clearance.
C++, C#, Java, JavaScript, HTML, Python, Linux, Windows, Azure DevOps, Jira, Git, Docker, CI/CD
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