C# jobs in Fairfax, VA

Full Stack Software Developer with C#/.NET Expertise

McLean, Virginia

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Today

Job Title: Full Stack Software Developer with C#/.NET Expertise Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * Bring your expertise and sense of urgency to a team performing mission critical work. Within this team and supporting our product, you will have a direct hand in shaping requirements and expectations for current and fut

Full-time

USD 90,300.00 - 189,600.00 per year

Full Stack Developer (IoT) | Microsoft Technologies | .NET & C#

Remote

•

Today

Full Stack IoT Engineer (.NET/C#)Location: Remote (United States) Job DescriptionRequired SkillsFull Stack Development (FSD) with IoT experience (mandatory)Strong hands-on experience with Microsoft Technologies, including .NET and C#Experience developing production-grade cloud-native applicationsCandidates must be legally authorized to work in the United States without current or future sponsorship.Position is best suited for professionals with experience developing and delivering production sof

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Contract

$50 - $60

Golang Developer

McLean, Virginia

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Today

Golang Developer HYBRID in McLean, Virginia - 3 days per week GOLANG experience is a big portion of this 6 month contract 3 days in office possible C2H 2 rounds of interview (coding then design/behavior) do not need a clearance hybrid in McLean, VA all internal development - no outside client stuff Please make sure candidates have these: Must have: Experience developing backend services (i.e REST API services, at least 3+ years) in programming languages like Go (Prefer) or Java/C# (but the

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

USD 90-90

Sr .Net Full Stack Developer

Hybrid in Vienna, Virginia

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Today

Sr .Net Full Stack Developer - AI Coding 6- 10 Months Contract - Possible extension Location: Onsite Vienna, VA / Livonia, MI - Hybrid Onsite | Local Candidates within 40 milesIn-Person Interview RequiredJob description: Job Summary We are seeking an experienced Full Stack Developer with strong expertise in C#/.NET application development, modern front-end technologies, and AI-powered coding tools. The ideal candidate will have hands-on experience developing, enhancing, and maintaining enterpri

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Contract, Third Party

Depends on Experience

C#/.NET Developer

Remote

•

Today

Required qualifications Strong professional C#/.NET backend-service development experience. Practical Java coding experience; candidates are not expected to be stronger in Java than in .NET. Experience designing, building, and supporting microservices or distributed systems in production. Hands-on experience with Kubernetes, containers, Helm, Terraform, Azure, and CI/CD pipelines. Experience with telemetry, monitoring, observability, debugging, and troubleshooting production services. Experience

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Contract

Up to 50

.Net Software Engineer

Vienna, Virginia

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28d ago

Position: .Net Fullstack Developer Duration: 12 Months with possible extension Location: Vienna, VA Position Summary We are seeking a Senior Full Stack Engineer to lead the design, development, and delivery of scalable enterprise applications across frontend, backend, APIs, and data platforms. This role requires a hands-on technical leader who can architect complex systems, mentor engineers, drive best practices, and deliver high-quality solutions using .NET, React/Angular, and SQL technologies

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Full-time

Depends on Experience

Software Engineer with Golang

Hybrid in McLean, Virginia

•

Today

Position : Software Development Engineer-165152 Location :Local McLean, VA 6 months Must have: Experience developing backend services (i.e REST API services, at least 3+ years) in programming languages like Go (Prefer) or Java/C# (but they will be developing primarily in Go so able to learn and ramp up quickly). Experience building services and deployed to AWS in production env. Experience with using AI tools for development.

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Contract

Depends on Experience

Stock Loan Senior Developer C#/.NET

Remote

•

Yesterday

Role: Stock Loan Senior Developer C#/.NET Location: NYC (Remote) Experience: 7+ Years Job Description We are looking for a "Senior C#/.NET Developer with strong Stock Loan and Capital Markets" experience. The ideal candidate will have hands-on experience developing financial applications and strong expertise in C#/.NET technologies. Required Skills: * 7+ years of software development experience. * Stock Loan domain experience is required.* * Strong *C#, .NET, WPF, and WCF* development skills. *

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Full-time

Depends on Experience

Lead .Net Full Stack Developer

McLean, Virginia

•

Yesterday

Job Summary 7+ years of software development experience. Strong coding experience in any of these languages (C# and .Net), Unit testing, REST API designStrong React / TypeScript / Next.js 15 App Router, RTK Query, Tailwind CSS, component library patternsExperience integrating with ERP systems (Microsoft Dynamics NAV / Business Central strongly preferred)Proven experience designing real-time systems (SignalR, WebSockets, or equivalent)OpenAPI/Swagger specification authoring and API contract-first

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Contract

$60 - $70

Full Stack Developer (Entry Level)

Sterling, Virginia

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13d ago

ASSYST is seeking a motivated Full Stack Developer (Entry Level) to join our growing engineering team in Sterling, VA (Onsite). This role offers an excellent opportunity to gain hands-on experience building enterprise-grade applications in an Agile environment. Responsibilities: Develop and maintain full-stack web applications across both front-end and back-end systems.Write clean, maintainable code and build reusable application components and APIs.Design responsive user interfaces using modern

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Full-time

Depends on Experience

Software Development Engineer (Only W2 )

Hybrid in McLean, Virginia

•

Today

About the Role We are looking for a Software Development Engineer to join our team on a major internal development project. In this role, you will focus heavily on backend service development using Go (Golang) and cloud deployments on AWS. Key Requirements (Must-Haves) Programming Experience: 3+ years of experience developing backend services (e.g., REST API services).Preference: Strong hands-on experience with Go (Golang).Alternative: Candidates with strong experience in Java or C# will be con

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Contract

Senior Programmer (C# .Net)

Remote or Hybrid in Los Angeles, California

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Today

Job Title: Senior C# .NET Developer Remote Duration: 12 Months Skills Required The Senior Programmer will possess knowledge and experience in applications software development principles and methods sufficient to participate in the design, development, testing and implementation of new or modified applications software; operating systems installation and configuration procedures; organization's operational environment; software design principles, methods and approaches; principles, methods and

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Third Party, Contract

Sr. .Net Application Developer with 15+ Years Exp

Washington, District of Columbia

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21d ago

DHS App. Technical Specialist (812336) Work Location : 64 New York Ave, NE. Washington, DC - Onsite Description: 11-15 years of experience. Proven professional experience in the design, development, delivery and enhancement of Client-Server/Web-Based/Cloud-Based/Mobile Software Applications using Microsoft .NET Technologies, ASP & C# (C-Sharp). This position is housed under Application Software Development (ASD) Division (ASD) of the Office of Information Systems (OIS). The developer will buil

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Contract

75 - 85

Senior Software Engineer - .NET, C#, WPF

Remote

•

Today

Job Description A Global Software Engineering company is seeking a Senior Software Engineer to develop and extend business applications for enterprise clients while providing technical leadership and mentorship to the development team. Working within an Agile Scrum environment, you will build and enhance applications across desktop and mobile platforms, including WPF, UWP, iOS, and Android. This role combines hands-on software development with project ownership, client engagement, and solution

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Full-time

$115000 - $130000

.NET Full Stack Engineer

Vienna, Virginia

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Today

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

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Contract, Third Party

Depends on Experience

Mainframe with C#

Remote

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19d ago

Role :- Mainframe Consultant with .Net C# Location: | Remote Contract OpportunityLooking for a strong Mainframe Developer with:Hands-on C# coding experience Strong Mainframe experience Excellent communication skills Ability to work independently in a remote environment

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Third Party, Contract

Depends on Experience

Software Engineer .NET / C# (USC)

Remote

•

Today

Title Software Engineer .NET / C# Start: Immediate Duration: 12 Months to start ( Likely 1 to 3 year extension ) Location: Remote # of Openings: 8-10 Client: HealthCare .Net Core, C#, Typescript, MS SQL/PostgreSQLNice to have: Kubernetes, Terraform, Python, Facets experience, hands-on experience with and TDD5+ year working experience minimumTeam player

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Contract

$60 - $70

Full Stack Developer / C# .NET / Vue / Azure / Remote

Remote

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Today

A leading food services and facilities management organization is seeking a Full Stack Developer for a remote contract opportunity. This role will support application modernization initiatives and the migration of enterprise applications to Microsoft Azure, utilizing technologies including C#, .NET, Vue/Nuxt, SQL, and RESTful APIs to build and enhance business-critical solutions. What sets this opportunity apart is the chance to work on modernizing and rebuilding applications in a collaborative

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Contract

$45 - $75

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 onlin

Full-time

USD 143,000.00 - 187,000.00 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

C# jobs in Fairfax, VA, USA