C# jobs in Fairfax, VA

Full Stack Developer (C#.Net, React, Azure, AI) - W2 Contract

Vienna, Virginia

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Today

Full Stack Developer (C#.Net, React, Azure, AI) 12 Months contract extension Location: Vienna, VA 22182 / Southfield, MI 48075 Note : W2 contract position or 1099 //No 3rd Party profiles // Job description: Software development experience. Deepexpertisein Azure-native architectures: Azure Function Apps (isolated worker model), Azure SQL, Azure Service Bus, Azure AD / MSAL (OAuth2/OIDC)Strong C# .NET 8 Azure Functions, Entity Framework Core,xUnittesting, REST API designStrong React / TypeScrip

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Contract

Depends on Experience

Lead Software Developer in Test (C#)

Remote or Hybrid in Cleveland, Ohio

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Today

Our Fortune 100 client is hiring for a Lead Software Developer in Test to assist the project team with driving quality-centric practices into their software development processes and will also be responsible for working closely with the project teams to guide their use of test automation assets and consult on the creation and use of new test automation. The role is open to fully remote but candidates but must be willing to work ET hours within the United States. Day-to-Day Responsibilities: - S

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Contract

DOE

.NET Full Stack Engineer ( AI-assisted)

Vienna, Virginia

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Today

Hi, We currently have an exciting opportunity for a .NET Full Stack Engineer ( AI-assisted) with one of our direct clients. This is an onsite position based in Vienna, VA or Southfield, MI. Please let me know if you d be interested in discussing this opportunity further. Job Title: .NET Full Stack Engineer ( AI-assisted) Job Type: Contract Location: Vienna, VA or Southfield, MI (Onsite) Job Summary: We are looking for an experienced Senior.NET Full Stack Engineer with a strong background in

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Full-time

Depends on Experience

Sr .Net Developer

Hybrid in Vienna, Virginia

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12d ago

Role: .Net Developer (AI Enablement) Duration :: Contract Location: Vienna, VA Required skills : 12+ years of software development experience. Deepexpertisein Azure-native architectures: Azure Function Apps (isolated worker model), Azure SQL, Azure Service Bus, Azure AD / MSAL (OAuth2/OIDC)Strong C# .NET 8 Azure Functions, Entity Framework Core,xUnittesting, REST API designStrong React / TypeScript / Next.js 15 App Router, RTK Query, Tailwind CSS,componentlibrary patternsAzure SQL / SQL Serve

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Full-time

1,10,000 - 1,30,000

AI Full Stack Developer - W2

McLean, Virginia

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5d ago

Job Title: AI Full Stack Developer Employment Type: Long-Term Contract Location : Mclean/ Vienna, VA Local Only Position Summary We are seeking a AI Full Stack Engineer to build and enhance modern web applications across frontend, backend, APIs, and databases. The ideal candidate is a strong developer who enjoys working across the technology stack, collaborating with cross-functional teams, and delivering high-quality software solutions using .NET, React, Python, and SQL technologies and Hands-o

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Contract

Depends on Experience

QA Engineer - Playwright and C# exp - Hybrid - Plano, TX - W2

Remote or Plano, Texas

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Today

We are seeking a skilled Senior QA Engineer to join our dynamic software development team. In this role, you will lead quality assurance initiatives across web applications and web services. You will be responsible for traditional manual/API testing, backend data verification, and building modern, reliable automated test suites. The ideal candidate blends strong foundational QA practices with modern automation expertise, possesses object-oriented coding skills, and is adept at utilizing AI-assis

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Contract

Senior C#/Angular Developer

Remote or Hybrid

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Today

Our Fortune 100 client is hiring for a Senior Fullstack Developer to focus on Angular front-end development and C# back-end to enhance capabilities. This role requires expertise in C#, .NET (back-end), Angular (v18+), JavaScript, HTML (front-end), SQL Server, and APIs. You'll analyze requirements, write and test code, support production systems, and ensure seamless software integration. Experience with Duck Creek insurance platform is a plus. This is a fully remote role foowing an ET work schedu

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Contract

DOE

Sr. Software Engineer (C# .NET/Azure/React/API

Remote

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Yesterday

Title: Sr. Software Engineer (C# .NET/Azure, React, APIs, Kafka and Kubernetes) Location: REMOTE Duration: one year with possible extensions Compensation: 70-80/hr Work Requirements: , Holders or Authorized to Work in the US Job Description: Seeing a motivated Software Development professional passionate about NET/Azure development and integrations. You excel at software development and have experience in .NET, specifically C#, React, API, and Eventing. You are optimistic, proactive, analytica

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Third Party, Contract

$65 - $70

Full Stack Developer (.NET / C# + React)

Remote

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6d ago

About the Role Our client, a company in the payments/fintech space, is seeking an experienced Full Stack Developer to join their engineering team. You'll build and maintain secure, high-throughput services on a modern .NET + Azure stack, working across the backend and the React front end. This is a fully remote, contract or direct-hire for candidates already based in the U.S and authorized to work. What You'll Do Design, build, and maintain backend services in C# / .NETDevelop responsive, user-f

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Full-time

$80

MANAGER - C# Software Engineering - Azure Cloud-Native Architecture

Remote

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21d ago

NO SPONSORSHIP - NO OPT Software Engineering Senior Manager - Azure Cloud SALARY: $195k - $235k plus discretionary bonus LOCATION: hybrid 3 days onsite if in Chicago Remote if in TX, MA, NY, DC, FL, CA. Target Salary Range : $195,000 - $234,400 Seeking a hands-on engineering leader with deep Azure expertise to lead a team of 5 7 engineers while driving cloud-native architecture, platform engineering, and modern software development within the Data & AI organization. Senior Engineering Manager wh

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Full-time

$195,000 - $235,000

Principal Software Architect / Software Architect (.Net/C#)

Remote

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Today

Hello; Principal Software Architect / Software Architect (.Net/C#) Long Term Job Location- Remote Core Platform C# / .NET 8 ,ASP.NET Core ,Vue.js 3 / TypeScript , SQL Server ,COBOL (legacy) Cloud & AI Amazon Web Services (AWS), Amazon Bedrock , AWS Lambda / ECS , Docker, MCP Server Architecture Architecture Domains SaS / SaaS / PaaS / Multi-Tenant ,Microservices ,API-First Design ,Event-Driven Architecture , CI/CD / DevOps Core Responsibilities Lead enterprise technical architecture for SaaS-h

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Full-time, Part-time, Third Party, Contract

C#/.NET Full Stack Developer

Remote

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Today

Seeking a Full Stack Developer to design, develop, and support modern web applications and APIs in a cloud-based environment. This role will leverage C#/.NET 8+, ASP.NET Core Web API, Entity Framework Core, AWS Lambda, React, TypeScript, and Redux Toolkit to build scalable, high-performing solutions. The ideal candidate has strong full stack development experience and enjoys working across both front-end and back-end technologies. Beacon Hill is an equal opportunity employer and individuals with

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Contract

Senior Software Engineer (C#/.NET)

Arlington, Virginia

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Today

Senior Software Engineer (C#/.NET) Job Description Overview CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index, CoStar Group is on a mission to digitize the world's real estate, empowering all people to discover properties, insights and connections that improve their businesses and lives. We have been living and breathing the world of real estate information and online

Full-time

USD 143,000.00 - 187,000.00 per year

Software Engineer - C#/ BCS

Reston, Virginia

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Today

Job Summary: Securiport LLC is a U.S.-based company headquartered in Reston, VA, specializing in the design and implementation of advanced border security solutions, including passenger biometric recognition, immigration processing, and intelligent information management systems. Our technology enables governments worldwide to enhance security, screening, and operational efficiency. We are seeking a Software Engineer (3-5 years experience) to join our Product Development team. In this role, you

Full-time

USD 110,000.00 - 135,000.00 per year

C# Software Developer

Fort Belvoir, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: Application Development, Quality Assurance (QA), Software Development Methodology Certifications: None Experience: 6 + years of related experience ship Required: Yes Job Description: Join GDIT and be a part of the team of men and women that solve some of the world's most co

Full-time

USD 123,250.00 - 166,750.00 per year

CANO/WiFi Software Developer- C/C#

Fort Belvoir, Virginia

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Today

Oak Grove Technologies, LLC, a dynamic and fast-growing federal contractor, is seeking a highly skilled and motivated CANO/Wifi Developer (C/C#) to join our team! In this role you will conduct offensive development for Windows environments. Oak Grove Technologies is a Service-Disabled Veteran-Owned Business based in Raleigh, NC, with a Test and Training Center located near Fort Bragg and Camp Mackall. With over 20 years of expertise in training, consulting, technology, and operational support,

Full-time

Senior Software Engineer - C# / WPF

Arlington, Virginia

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Today

CaseGuard is looking for a senior engineer to help drive the evolution of CaseGuard Studio, a feature-rich .NET desktop application for video, audio, image, and document redaction. You'll own significant areas of a large WPF codebase that spans real-time video playback, AI-powered detection, and media processing pipelines - and help shape how the team builds software. Responsibilities: Lead technical design with product owners and designers, turning ambiguous product goals into architecture, act

Full-time

Jr. Net, C#, SQL Developer - Active Top Secret required

Washington, District of Columbia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: Development Experience, Microsoft .NET, Software Development Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: Deliver simple solutions to complex problems as a SOFTWARE DEVELOPER at GDIT. Here, you'll tailor cu

Full-time

USD 81,349.00 - 92,000.00 per year

.NET / C# Developer - Senior - #879

Fort Belvoir, Virginia

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Today

.NET / C# Developer - Senior - #879 Location: Fort Belvoir, VA TS/SCI w/CI Poly REQUIRED Experience: Eight years of experience in .NET Development (including MS.NET, C#, MVC 4+, and Internet Information Services (IIS) for Windows Server web development).Five years of experience with Software Development Life Cycle Process (SDLC).Five years of experience with software development Unit Testing, System Testing, Functional Testing, User Acceptance Testing, or other development testing experience.F

Full-time

Senior .NET/C# Engineer - Iris AI

Remote

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Today

About Delinea: Delinea is a pioneer in securing human and machine identities through intelligent, centralized authorization, empowering organizations to seamlessly govern their interactions across the modern enterprise. Leveraging AI-powered intelligence, Delinea's leading cloud-native Identity Security Platform applies context throughout the entire identity lifecycle - across cloud and traditional infrastructure, data, SaaS applications, and AI. It is the only platform that enables you to disco

Full-time

USD 130,000.00 - 162,200.00 per year

C# jobs in Fairfax, VA, USA