52 senior net full stack developer jobs at 35 companies in Fredericksburg, VA
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Senior .Net Full-Stack Developer
Washington, District of Columbia, United States
$95k-$120k/yrOnsiteFull Time
Koniag Government Services: Providing technical and professional services to federal agencies.
8+ YOETop-Secret clearance, 8+ years full-stack software development experience, 4-year degree in IT or equivalent, experience with SDLC, large-scale data processing, and mentoring/knowledge transfer.
Senior Full Stack .NET Developer with Azure/Angular (On Site)
Washington, District of Columbia, United States
$68k-$140k/yrOnsiteFull Time
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
10+ YOESenior Full Stack .NET Developer with Azure/Angular; 10+ years in .NET, Azure, DevOps, Angular, SQL Server; on-site in Washington, DC; US work authorization.
Senior Full Stack .NET Developer with Azure/Angular (On Site)
Washington, District of Columbia, United States
$68k-$140k/yrOnsiteFull Time
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
10+ YOESenior Full Stack .NET Developer with Azure/Angular; 10+ years .NET, Azure, Angular, Docker, and DevOps experience; strong front-end skills; on-site role in Washington, DC.
E-INFOSOL: Provides secure cloud and cybersecurity solutions for government agencies.
8+ YOEActive Top-Secret clearance (SCI/CI poly capability), Bachelor\u0002s in Computer Science or related field, minimum 8+ years software development experience, strong SDLC knowledge, large-scale data processing and analytics experience, excellent problem-solving and communication skills.
.NET, Amazon Web Services (AWS), Broadcom, Microsoft, Cisco
Cayuse Holdings: Tribally-owned provider of IT and professional services.
8+ YOEBachelor's in IT or related, 8+ years professional software development, Top Secret clearance required, experience with enterprise applications, API integration, SDLC, automation, and mentoring; strong communication skills.
.NET, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, Adobe Acrobat, CI/CD, DevSecOps
Pioneering Evolution: Provides strategic acquisition and software solutions for defense organizations.
7+ YOEBachelor's degree, 7+ years full-stack experience with .NET Core, 3+ years Angular, RESTful API and microservices experience, PostgreSQL proficiency, experience in compliance-driven environments, mentoring experience, U.S. citizenship and active Secret clearance, on-site in Washington D.C. metro.
Securiport: Provides biometric and big data solutions for global border security.
7+ YOE7+ years building full-stack apps with modern JavaScript/TypeScript front ends, a mainstream backend (Node.js, Python, Java, .NET), relational databases, system integrations, secure development, and offline-resilient designs.
NuAxis Innovations: Provides IT infrastructure and customer experience solutions for government agencies.
5+ YOEBachelor's in CS/IS/Software Engineering, 5+ years full-stack experience, expertise with AWS, modern JavaScript frameworks, microservices, containerization, CI/CD, PostgreSQL, Kafka; Agile experience and ability to obtain Public Trust.
MetaPhase Consulting: Provides IT and management consulting services to federal agencies.
6+ YOEU.S. citizen able to obtain Public Trust,6+ years software engineering with .NET/C#,3+ years Azure (App Service, DevOps, Azure SQL),JavaScript/Vue experience,SQL skills,EMR not mentioned,Bachelor's degree strongly preferred.
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
5+ YOEBachelor's degree required; 5+ years relevant experience including 3+ years .NET (C#) and 5+ years TypeScript; experience with cloud platforms, IaC (Terraform), observability, and familiarity with LLMs/AI integrations.
Akumen: Provides technology, cybersecurity, and data services to federal agencies.
6+ YOE6+ years building enterprise applications with C#/.NET or Java; modern JavaScript (React/Angular); SQL databases; Microsoft Azure and Azure DevOps experience; Agile, DevSecOps, and active DoD Secret clearance required.
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
3+ YOEBachelor's degree, 3+ years .NET (C#) experience, 5+ years TypeScript experience, experience with cloud (AWS/Azure), Terraform, SQL Server, observability tooling, and familiarity with large language models.
A-TEK: Provides digital transformation and scientific solutions to federal agencies.
5+ YOEBachelor's degree and 5+ years software development experience; proficiency with C#/.NET or Python, React, Microsoft Azure, SQL databases, Git, Azure DevOps, REST APIs; ability to obtain Tier 2 background investigation.
React, HTML5, CSS3, JavaScript, TypeScript, Python, C#/.NET, Microsoft SQL Server, PostgreSQL, Microsoft Azure, Git, Azure DevOps, Power Apps, Power Automate
Network Designs, Inc.: Provides IT, network, and cybersecurity solutions to government agencies.
8+ YOEBachelor's in CS or related; 8+ years experience; front-end JS/TS, HTML5, CSS3; React/Angular/Vue; back-end Node/Java/.NET; RESTful APIs; Agile; AWS/Azure/CLOUD preferred; US Citizenship; Public Trust clearance; mostly remote with on-site in DC
Echelon Services: Provides IT and security services to federal government agencies.
Requires a Bachelor's or Master's in CS/Software Engineering, ability to pass a Tier 1 DOD background investigation, experience with .NET Core, ASP.NET Core (C#), Angular/TypeScript, REST APIs, Go, Azure Government, containerized microservices, and CI/CD/DevSecOps practices.
.NET Core, ASP.NET Core, C#, Angular, TypeScript, REST APIs, Go (Golang), Azure Government, CI/CD
Full Stack Software Developer with C#/.NET Expertise
McLean or Chantilly
$90k-$190k/yrOnsiteFull Time
CACINYSE: CACI: Provides information technology and professional services to government clients.
7+ YOETS/SCI with Polygraph required, Bachelor's in CS or related, 7+ years developing in high-side environments; expert in C#, .NET, AngularJS, TypeScript, Node.js, JavaScript, HTML/CSS; strong communication and problem-solving.
Fortegra: Provides specialty insurance products and warranty service solutions.
7+ YOE7+ years software engineering, expert React, backend framework experience (Node.js, Python, .NET Core), secure public-facing app and cloud architecture experience, hands-on use of AI coding tools and agentic workflows.
React, Node.js, NestJS, Express, Python, FastAPI, Django, Microsoft .NET Core, AWS, Microsoft Azure, GCP, Claude Code, GitHub Copilot, Cursor, Replit, Lovable
Senior Specialist, Full Stack Software Engineer (40003)
Washington, District of Columbia, United States
$112k-$208k/yrOnsiteFull Time
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
6+ YOEBachelor's degree with 6+ years related experience (or graduate degree with 4+ years or 10+ years experience in lieu); proficiency in C#/.NET, Python, Angular, PostgreSQL; strong OOP, testing, and secure-coding skills; ability to obtain security clearance.
Kentro: Provider of digital and IT services for federal agencies.
7+ YOE7+ years software development; bachelor’s degree or associate with 10+ years; full‑stack frontend and backend experience; strong SQL and DB skills; Git experience; active TS/SCI clearance and CI polygraph capability.