C# jobs in Fairfax, VA

Hybrid in Rockville, Maryland

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19d ago

Role - Computer Programmer, (Junior) Contract Type W2 Contract length Longterm Job Location Rockville MD Onsite and some telework allowed The Application Integration Developer will work with the IT Division to enhance and expand functionality for data integrations. The selected candidate will join an existing team of Windows Application Developers using C# and VB.net within Windows Forms and WCF web services and is expected to have experience in those technologies. Duties: Participation in

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Full-time

Depends on Experience

C# .NET Developer with Trading And Capital Market Exp

Remote

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Today

JOB DESCRIPTION: Please apply only if you have Investment banking/Capital market experience. Role: C#.NET Developer with investment banking and Capital Market exp.Location: NY(Remote)Job Type: W2 / Fulltime Client is looking for a reliable full stack Dot Net developer ASAP.Wealth Management & Capital Market (Trading, Equities, Portfolio) Exp. Must.SQL, C#, .NET, Full stack developer with 8+ years of experienceProficiency in C#, .NET framework, and object-oriented programming principles.Experienc

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Full-time

Depends on Experience

.Net Enterprise Solution Architect

Vienna, Virginia

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Today

.Net Enterprise Solution Architect Long term contract Location: Vienna, VA 22182 Note : Application Architecture: Strong experience with C#, .NET/.NET Core, ASP.NET Core, Azure, REST APIs, microservices, SQL Server, and enterprise application integration. Experience with application modernization, cloud architecture, design patterns, and technical roadmaps. Job description: Role Summary The Enterprise Architect is a senior technology leader responsible for shaping enterprise architecture strat

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Contract, Third Party

Depends on Experience

.Net Software Engineer

Vienna, Virginia

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14d 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

Lead .Net Full Stack Developer

McLean, Virginia

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Today

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

C#/Duck Creek Developer (Field Engineer)

Remote or Hybrid

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Today

Precision is seeking THREE (3) Duck Creek/C# Developers for a contract position with our Fortune 100 client. This fully remote role supports software applications and platform enhancements using Duck Creek Policy, C# .NET, Kafka, and API development. You will analyze requirements, create programming specifications, develop and test code, support production applications, and maintain technical documentation. The role requires strong troubleshooting, problem-solving, organization, and communicatio

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Contract

DOE

Lead .Net Developer

Arlington, Virginia

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Today

Location: Arlington VA or Merrifield/Fairfax VA Duration: 12 months Reporting: 100% onsite Required Skills: Minimum 15 years of web development experience. Minimum 5 year of .Net Core/Standard development experience. Minimum 10 years of ASP.Net C# MVC based web development experience using Visual Studio 2017 or higher. Minimum 8 years of experience with Agile development methodologies including participation in Sprints, Backlog grooming, and Agile Ceremonies. Bachelors degree in a related

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Contract

Depends on Experience

Sr. .Net Application Developer with 15+ Years Exp

Washington, District of Columbia

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7d 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

Mainframe with C#

Remote

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5d 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

.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

.NET/C# web developer - Local to CA

Remote

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7d ago

.NET/C# web development Client is in California Remote in the USA 8 to 12 months. Position requires evidence of 5+ years SQL Server, 5+ years .NET/C# web development, 3+ years Azure, 5+ years data modeling/database design, 3+ years Microsoft Access, 5+ years requirements gathering, 5+ years project management and 5+ years testing medium/large applications. Please send me our strongest resumes that collectively demonstrate all eight requirements, particularly Microsoft Access and Azure. Also id

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Full-time

Depends on Experience

Senior .NET Developer

Remote or Hybrid in Vienna, Virginia

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21d ago

ITCON Services is seeking a highly experienced Senior Developer for a contingent position to provide operations, maintenance, and modernization of system that includes user forms, the entry, validation, certification, approval, and posting of data and centralized data warehouse to support reporting of program information. The Senior Developer will design, develop, enhance, deploy, and maintain Microsoft-based web applications, data integrations, databases, and reports using C#, ASP.NET/.NET, S

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Full-time

130,000 - 140,000

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

.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

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

Backend Software Engineer Intern - C#, Cloud Security & AI (Undergraduate)

Remote

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Today

WEX is a global commerce platform that has been simplifying the way businesses operate for over 40 years. Our purpose is simple: to reduce administrative burdens, streamline payments, and manage mobility. With a team of over 7,200 professionals across 16 countries. Our specialties are employee benefits, business payments, and fleet/mobility solutions. We support more than 20 million SaaS accounts, 8 million Health Savings Accounts, and 19+ million vehicles worldwide. We're a growing company wit

Part-time

USD 27.00 - 35.00 per hour

Backend Software Engineer Intern - C#/Java & AI Workflows (Undergraduate)

Remote

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Today

Part-time

USD 27.00 - 35.00 per hour

Managing Engineer (C#/ASP.NET)

Remote

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Today

At Allstate, great things happen when our people work together to protect families and their belongings from life's uncertainties. And for more than 90 years, our innovative drive has kept us a step ahead of our customers' evolving needs. From advocating for seat belts, air bags and graduated driving laws, to being an industry leader in pricing sophistication, telematics, and, more recently, device and identity protection. Job Description The Managing Engineer (C#/ASP.NET) leads a team of softwa

Full-time

USD 100,000.00 - 170,500.00 per year

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 III: Backend C#

Remote

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Today

Jack Henry, provides advanced bill payment and money transfer solutions to banks and credit unions. We offer modernized smart technology, including AI driven, security, cloud-based software, and fraud monitor, to deliver engaging payment solutions to customers. Our solutions help financial institutions to meet the payment expectations of today and the payment innovation needs of tomorrow. Payments become smarter, engaging, and predictive with Payrailz. We are looking for a software engineer who

Full-time

C# jobs in Fairfax, VA, USA