.Net Web Developer jobs in Ashburn, VA

Senior .Net Application Developer (Secret clearance)

Reston, Virginia

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11d ago

Senior .Net Developer Arlington, VA or Merrifield, VA - ONSITE Secret Clearance is required to start Must be able to obtain DEA clearance 2-6 month process Responsibilities: Works in a collaborative team environment to develop and enhance code for applications built within the Concorde framework, ensuring high-quality and efficient solutions. Demonstrates strong expertise in Agile development methodologies through daily activities, including sprint participation, task execution, and adherenc

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Contract

Depends on Experience

Lead .Net Developer (Secret clearance)

Reston, Virginia

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11d ago

Lead .Net Developer Arlington, VA or Merrifield, VA - ONSITE Secret Clearance is required to start Must be able to obtain DEA clearance 2-6 month process Responsibilities: Lead a team of 5-7 developers in support of the mission with an ability to guide them on technical decisions, best practices, and team efficiencies Lead technical planning meetings Conduct peer code reviews and final code reviews Demonstrate soft skills in terms of professionalism, conduct and execution in a client-facin

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Contract

Depends on Experience

.NET Developer (Entry Level)

Sterling, Virginia

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23d ago

ASSYST is seeking a motivated and detail-oriented.NET Developer (Entry Level) to join our growing development team in Sterling, VA (Onsite role). This is an excellent opportunity for an early-career software developer to gain hands-on experience with modern .NET technologies while contributing to enterprise-grade applications in an Agile environment. Responsibilities: Develop and enhance full-stack web applications, contributing to both user-facing features and backend services.Build clean, scal

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Full-time

Depends on Experience

Senior Full Stack .Net Developer (onsite)

Washington, District of Columbia

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13d ago

Senior Full Stack .Net Applications Developer Washington, DC 100% Onsite Per Federal contract U.S. citizenship is required Must be able to obtain Public Trust clearance W2 or C2C Seeking an experienced Full Stack Sr Application Developer to join our development team. They will build and maintain powerful web applications using our modern tech stack: .NET Core C#, Web API, Angular 16+, Entity Framework, and SQL Server. In this role, they will contribute across the entire application lifecycle -

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Contract

Depends on Experience

Legacy .NET Developer

Hybrid in Vienna, Virginia

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12d ago

Job Title: Full Stack Developer Location: Vienna, VA Type: Contract Compensation: Open to Both C2C and W2 options Work Model: Hybrid onsite and remote Responsibilities Identify business requirements (e.g., needs, objectives, functions, features, input and output) and translate into delivered technical solutions Utilize approved company software development tools and software applications to design, develop, implement and maintain custom code business solutions that align with business initiat

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Contract

Depends on Experience

Sr .Net Developer

Hybrid in Vienna, Virginia

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11d 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

.Net Full Stack Developer - W2

Vienna, Virginia

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Today

.Net Full Stack Developer - W2 Long term contract Location: Vienna, VA 22182 Job description: Software development experience. Deep expertise in 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, xUnit testing, REST API designStrong React / TypeScript / Next.js 15 App Router, RTK Query, Tailwind CSS, component library patternsAzure SQL / SQL Server schema

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Contract

Depends on Experience

Software Developer (.NET/React)

Reston, Virginia

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Today

The Work: ICF is seeking a skilled and motivated Software Developer to join our team in supporting mission-critical federal systems. In this role, you will analyze business requirements, develop software solutions, and support the full software development lifecycle for enterprise applications. The ideal candidate will have experience in designing, developing, testing, and maintaining complex applications while collaborating with technical teams and stakeholders to deliver high-quality software

Full-time

USD 81,499.00 - 138,549.00 per year

Senior .NET Developer

Poolesville, Maryland

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Today

Andworx is seeking a Senior .NET Developer to play an important role in the development of mission and operational applications for a federal government agency. As Senior .NET Developer, you will be working on an Agile team that develops enterprise web applications using technologies that include ASP.NET, .NET CORE, .NET 6, MVC, Entity Framework, and Oracle and Azure DevOps. You will work with a team of developers, testers, business analysts, and stakeholders to develop solutions to customer req

Full-time

Lead .Net Full Stack Developer

McLean, Virginia

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2d ago

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

Sr. .Net Developer II

Reston, Virginia

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Today

Description: Hybrid 2-3 days in Reston, VA As Sr. .Net Developer II, you will serve as a senior full-stack engineer and technical lead, building and modernizing enterprise applications using .NET and React while driving architecture, development standards, tooling decisions, and engineering best practices. You will design APIs and services, integrate solutions across Microsoft 365, SharePoint, Teams, and the Power Platform, lead AI-enabled modernization initiatives, establish CI/CD processes,

Full-time

USD 145,000.00 - 165,000.00 per year

Software Developer (.NET/React)

Reston, Virginia

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Today

Full-time

USD 81,499.00 - 138,549.00 per year

Web Developer

Washington, District of Columbia

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6d ago

Web Developer Clearance: ship required. Location: Washington, DC Metro Area (VA/DC/MD) - Onsite/Hybrid per program requirements. Candidates must currently reside in, or be willing to relocate to, the DC metro area prior to start. Salary: $105,000-$170,000 - Commensurate with experience Responsibilities Design, build, and maintain responsive web applications and portals supporting mission users. Develop front-end interfaces using modern frameworks (React, Angular, or similar) and back-end ser

Full-time

USD 105,000.00 - 170,000.00 per year

Sr .NET Blazor Developer

Remote or Tysons, Virginia

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Today

Overview The Senior NET Blazor is responsible for building secure, high-quality application features within the VA-EISS platform using Microsoft technologies, including C#, .NET, and Blazor for the Department of Veterans Affairs (VA), Office of Information and Technology (OIT), Product Delivery Services (PDS), Benefits and Memorials (BAM), Memorial and Benefit Services (MBS) deliver secure, reliable, and effective Information Technology (IT) solutions that support the Department's mission. Res

Full-time

USD 138,000.00 - 160,000.00 per year

Full Stack .NET Developer (onsite Washington, DC)

Washington, District of Columbia

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4d ago

Key Responsibilities Design, develop, enhance, and maintain components across the full application technology stack. DevelopenterprisewebapplicationsusingC#,.NET8,Core,andAngular. Design and maintain SQL Server database schemas, stored procedures, and efficient SQL queries. Develop secure, scalable RESTful APIs and application/service integrations. Build responsive and intuitive user interfaces using Angular 16 or later. Use Entity Framework Core to support application data access and persisten

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Full-time, Third Party

Depends on Experience

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

Senior .Net Developer

Hybrid in Washington, District of Columbia

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27d ago

Title: .Net Full Stack Developer Duration: 12 Months Long Term Location: Washington, DC 20433 Hybrid Onsite: 4 days per week from Day 1, with a full transition to 100% onsite anticipated soon. Scope Of Work: Full Stack Development: Design, develop, and maintain web applications using modern front-end frameworks (e.g., React, Angular, Vue.js) and back-end technologies (e.g., .NET Core, Node.js, Python).Build and consume RESTful APIs and microservices.Implement responsive and user-friendly interf

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Contract, Third Party

Depends on Experience

Senior SQL Server & .NET API Developer (Azure)

McLean, Virginia

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Today

Job Family: Systems Engineering Travel Required: Up to 10% Clearance Required: Ability to Obtain Public Trust Senior SQL Server & .NET API Developer (Azure) What You Will Do Guidehouse is seeking a Senior SQL Server & .NET API Developer to support the enhancement, maintenance, and deployment of a mission-critical federal application hosted in Microsoft Azure. This role is ideal for a developer whose primary expertise is SQL Server application development and database-centric solution archi

Full-time

Sr. Full Stack Cloud and GIS Developer (AWS/.Net)

Washington, District of Columbia

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5d ago

ECCO Select is a talent acquisition and consulting company specializing in people, process and technology solutions. We provide the talent behind the technology enabling our clients to achieve their goals. For more information about ECCO Select, visit us at. Position Title: Senior Full Stack Cloud & GIS Developer (.NET/AWS) Location Information Washington, DC Full-Time Onsite Employment Type: Contract Citizenship Requirement: U.S. Citizenship Required Duration: Through December 2026, with pot

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Full-time

82 - 87

Full Stack Developer .NET Core

Washington, District of Columbia

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Today

Overview Edgewater Federal Solutions is seeking an experienced Full Stack Sr. Application Developer to join our development team. The developer will build and maintain powerful web applications using our modern technology stack: .NET Core C#, Web API, Angular 16+, Entity Framework, and SQL Server. In this role, the developer will contribute across the entire application lifecycle-from database design to front-end implementation-and work collaboratively with other developers, QA engineers, and b

Full-time

USD 126,058.00 - 128,860.00 per year

.Net Web Developer jobs in Ashburn, VA, USA