224 c net developer jobs at 109 companies in Rosedale, MD

1mo
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C#/.NET Developer
Washington, District of Columbia, United States
$151k-$156k/yr OnsiteFull Time
E-INFOSOL
E-INFOSOL: Provides secure cloud and cybersecurity solutions for government agencies.
8+ YOEActive Top-Secret clearance, Bachelor’s in IT, minimum 8 years experience with 3–5 years using C#/.NET; experience with ASP.NET, Entity Framework, Microsoft SQL Server, REST/RPC, Git/GitLab, unit/integration testing, and secure coding practices.
C#, .NET, ASP.NET, Entity Framework, Microsoft SQL Server, REST, RPC, Git, GitLab, AWS, Azure, Docker, CI/CD
1mo
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C# / .Net Developer
Washington, District of Columbia, United States
$125k-$155k/yr OnsiteFull Time
Synergy ECP
Synergy ECP: Provides cybersecurity and systems engineering for defense agencies.
8+ YOEBachelor's degree and 8+ years software engineering experience; 3–5 years with C#/.NET, ASP.NET, Entity Framework, and Microsoft SQL Server; experience with REST/RPC, unit/integration testing, secure coding; active TS/SCI clearance and U.S. citizenship required.
C#, .NET, ASP.NET, Entity Framework, Microsoft SQL Server, Git, GitLab, Docker, AWS, Azure, REST, RPC, CI/CD
3w
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C#/.NET Developer, Senior
Washington, District of Columbia, United States
$130k-$145k/yr OnsiteFull Time
Technica Corporation
Technica Corporation: Provides systems engineering and cybersecurity services to federal agencies.
8+ YOEActive Top-Secret with SCI and CI Poly eligibility; Bachelor’s in Computer Science or equivalent; 8+ years software development; 3–5 years C#/.NET experience; ASP.NET, Entity Framework, SQL Server, unit testing, and secure coding.
C#, .NET, ASP.NET, Entity Framework, SQL Server, Git, GitLab, AWS, Azure, Docker
2d
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.Net Developer
Washington, District of Columbia, United States
$110k-$120k/yr OnsiteFull Time
Koniag Government Services
Koniag Government Services: Providing technical and professional services to federal agencies.
3+ YOERequires Secret clearance and 3+ years of .NET development preferred. Experience with C#, ASP.NET, Microsoft SQL Server, Git, Visual Studio, web technologies, APIs, and Agile methodologies; bachelor's degree preferred.
.NET, C#, ASP.NET, Microsoft SQL Server, JavaScript, jQuery, HTML, CSS, Web Forms, MVC, Visual Studio, Git, Azure DevOps, Web Services (API), ADO.NET, Entity Framework, Angular
1d
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Senior .NET Developer
McLean or Washington
$115k-$130k/yr HybridFull Time
Revolutional
Revolutional: Delivers advanced technology and mission support to federal agencies.
Bachelor's degree in computer science or related field plus 7 years of software engineering experience. Requires C#/.NET, SQL Server, full-stack development, Azure DevOps, Agile, and ability to obtain Public Trust clearance.
C#, .NET, .NET MVC, .NET Core 8.0, Web API, Telerik Kendo UI, NPM, ASP.NET Web Forms, JavaScript, CSS, SASS, jQuery, Bootstrap, TypeScript, Entity Framework, LINQ, ADO.NET, SQL Server, T-SQL, SQL Server 2022, WCF, NUnit, MSTest, Azure DevOps, Web Apps, CI/CD, SonarQube, Azure AI Services, Azure OpenAI, Microsoft Foundry, Python
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Senior .NET Developer
Washington or District of Columbia
HybridFull Time
Andworx
Andworx: Delivers digital transformation and IT solutions for federal agencies.
8+ YOERequires 8–10 years developing enterprise applications, .NET, C#, ASP.NET, MVC, Oracle, Agile methods, a relevant bachelor's degree or equivalent, U.S. citizenship, and ability to obtain Position of Trust clearance.
ASP.NET, .NET Core, .NET 6, MVC, Entity Framework, Oracle, Microsoft Azure DevOps, C#, MVVM, REST, SOAP, JSON, XML, Agile, Kanban, Scrum, SDLC
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Jr. Net, C#, SQL Developer - Active Top Secret required
Washington, District of Columbia, United States
$74k-$92k/yr OnsiteFull Time
General Dynamics Information Technology
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
3+ YOEActive Top Secret with SCI eligibility, US citizenship, 3+ years related experience (2+ years software development), Bachelor's in CS/Engineering or equivalent, CompTIA Security+, development experience with Microsoft .NET, C#, SQL, JS, HTML, and strong written communication.
Microsoft .NET, C#, SQL, JS, HTML, CompTIA Security+
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.Net Applications Developer
Washington, District of Columbia, United States
HybridFull Time
AVER
AVER: Provides data analytics and IT services for federal agencies
5+ YOE5+ years .NET application development experience with C#, .NET Core/.NET 6+, Azure DevOps/GitHub Actions, EF Core, SQL/Oracle, REST APIs, and secure authentication; bachelor’s degree or equivalent experience.
Microsoft C# (.Net CORE), Microsoft .NET 6, Microsoft .NET Framework 4.8, Microsoft Azure DevOps, GitHub Actions, Azure App Services, Azure Functions, Azure API Management, Azure Storage, Azure Key Vault, Entity Framework Core (EF Core), SQL Server, Oracle, MVC, MVVM, jQuery, AJAX, Telerik Kendo UI, RESTful Web Services, Windows Services, ASP.NET Core, Entra ID (formerly Azure Active Directory), SAML, OAuth 2.0, OpenID Connect, JSON Web Tokens (JWT), Microsoft Visual Studio 2022, Azure Logic Apps, Event Grid, Cosmos DB, GraphQL
2d
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Senior .NET Developer
United States or Rockville
$125k-$130k/yr RemoteFull Time
A-TEK
A-TEK: Provides digital transformation and scientific solutions to federal agencies.
6+ YOEBachelor's degree in computer science or related field; 6+ years of .NET development in federal or secure environments; proficiency with C#, ASP.NET, T-SQL, IIS, Git/GitLab, testing, performance tuning, and QA/QC.
ASP.NET, C#, Microsoft SQL Server, DevOps, T-SQL, IIS, Git, GitLab
1w
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Mid-Level .NET Developer
Colorado Springs or Washington or Colorado
OnsiteFull Time
Blue Rose Consulting Group
Blue Rose Consulting Group: Provides IT and management consulting services to government agencies.
4+ YOERequires 4+ years of C#/ASP.NET development, .NET Framework or .NET Core, Entity Framework, Visual Studio, SQL Server, GitLab, data integration, reporting, and an active Final DoD Secret clearance.
C#, ASP.NET, ASP.NET Framework, Microsoft .NET Core, Entity Framework, SQL Server, Web API, Microsoft Visual Studio, GitLab, CI/CD, Agile, SAFe
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Jr. Net, C#, SQL Developer - Active Top Secret required
Washington, District of Columbia, United States
$74k-$92k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
3+ YOEActive Top Secret/SCI clearance, US citizenship, 3+ years related experience (2+ in software development), Bachelor’s degree or equivalent, CompTIA Security+, experience with Microsoft .NET, C#, SQL, JS, HTML, and strong written communication.
Microsoft .NET, C#, SQL, JS, HTML
2w
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Sr..Net Developer III (6681)
Washington, District of Columbia, United States
$184k-$225k/yr HybridFull Time
MetroStar
MetroStar: Provides digital transformation and IT services to government agencies.
10+ YOE10+ years developing enterprise applications; expertise in C#, .NET, ASP.NET, Entity Framework, TypeScript, JavaScript, Angular or React, SQL Server, Docker, and CI/CD. Requires active Top Secret/SCI and certifications.
C#, .NET, .NET Framework, Entity Framework, ASP.NET, WebForms, MVC, REST APIs, TypeScript, JavaScript, HTML, CSS, Node.js, Angular, React, SQL Server, T-SQL, Azure DevOps, GitLab, GitHub, CI/CD, Docker, Windows Server, PowerShell, IIS, Kerberos, OIDC
2mo
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.NET Software Engineer
Arlington or McLean
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
2+ YOE2+ years .NET, C#, Web API experience; Docker and Agile experience; experience migrating to .NET 5/8/10; Secret clearance and Bachelor’s degree required; CI/CD and modern web framework experience preferred.
.NET, .NET 5, .NET 8, .NET 10, C#, Web API, Docker, Java, Python, JavaScript, Angular, React, NodeJS, Jenkins, GitHub Actions, Microsoft Azure DevOps
1mo
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Senior .Net Developer #1824528
Alexandria, Virginia, United States
$135k-$160k/yr OnsiteFull Time
Network Designs, Inc.
Network Designs, Inc.: Provides IT, network, and cybersecurity solutions to government agencies.
10+ YOEU.S. citizen able to obtain Public Trust, 10+ years experience, advanced C#, .NET, ASP.NET Core, Angular, Microsoft SQL Server, RESTful API and web application development.
C#, .NET Core, .NET 6, ASP.NET Core, Angular, TypeScript, HTML, CSS, JavaScript, Entity Framework, Entity Framework Core, Microsoft SQL Server, Git, Microsoft Azure, Microsoft Azure App Services, Azure Functions, Azure SQL, Microsoft Azure DevOps, GitHub, Docker, Kubernetes, xUnit, NUnit, Jasmine, Karma, Cypress, Jenkins, GitHub Actions
2d
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Senior Full Stack .NET Developer
Washington or United States
RemoteFull Time
Team Velocity
Team Velocity: Provider of a digital retailing platform for automotive dealerships.
5+ YOERequires 5+ years of software development, advanced C# and .NET, modern frontend framework experience, APIs, microservices, databases, Agile, testing, CI/CD, and AI-assisted development tools.
C#, .NET, Angular, Vue.js, React, RESTful APIs, SQL Server, PostgreSQL, MySQL, Redis, Elasticsearch, Kafka, Snowflake, Cassandra, Scrum, Kanban, TDD, Automated Testing, CI/CD, GitHub Copilot, ChatGPT, Claude, Cursor, Docker, AWS, Azure, GCP, Kubernetes, Apollo
3d
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Sr .NET Blazor Developer
Tysons or Virginia
RemoteFull Time
Integral Federal
Integral Federal: Provides IT, cybersecurity, and digital transformation solutions for government agencies.
7+ YOEBachelor's degree in computer science or IT and 7–10 years of experience. Requires C#, .NET, Blazor, REST APIs, SQL, secure coding, testing, Git, CI/CD, Agile/Scrum, and regulated enterprise systems experience.
C#, .NET, Blazor, REST APIs, SQL, Git, CI/CD, GIS, AWS
4d
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Senior .NET Developer
Rockville, Maryland, United States
$95k-$100k/yr HybridFull Time
Potawatomi Federal Solutions
Potawatomi Federal Solutions: Provides administrative and strategic support to tribally owned federal contractors.
5+ YOEBachelor’s degree and 5+ years of ASP.NET, C#, SQL, Angular, HTML, CSS, and JavaScript experience. Requires AI-assisted development, enterprise systems, secure coding, and active Public Trust clearance.
ASP.NET, C#, SQL, Angular, HTML, CSS, JavaScript, .NET Core, GitHub Copilot, Claude, TabNine, Azure, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure Key Vault, Databricks, LLMs, RESTful APIs, microservices, Git, CI/CD, T-SQL, TypeScript, Node.js, Entity Framework (EF), LINQ, Bootstrap, Webpack, OAuth, JWT, MFA, RBAC
1mo
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Senior Software Engineer (C#/.NET)
Arlington, Virginia, United States
$143k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Global provider of commercial and residential real estate data.
5+ YOE5+ years .NET (C#) experience, bachelor's degree, experience with large-scale distributed systems, cloud (AWS/Azure), RESTful APIs, telemetry/observability, and familiarity with LLMs or agent architectures.
C#, .NET, SQL Server, AWS, Web API, RESTful, ASP.NET MVC, Lambda, DynamoDB, SQS, LLMs, SQL
1mo
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.NET Services Engineer
McLean or United States
RemoteFull Time
Aretum
Aretum: Provides technology-enabled mission support services for federal government agencies.
8+ YOE8+ years software development experience with ASP.NET/Core and C#; experience with GraphQL, PostgreSQL, EFCore, Azure, Kubernetes, Azure DevOps, and unit testing; U.S. citizenship and Public Trust eligibility required.
C#, .NET, ASP.NET Core, Entity Framework Core (EFCore), PostgreSQL, GraphQL, Azure, AKS, Azure Pipelines, Azure Key Vault, Kubernetes, Helm, Open Telemetry, Azure DevOps (ADO), Git
1mo
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Senior Software Engineer (C#/.NET)
Arlington, Virginia, United States
$143k-$187k/yr HybridFull Time
CoStar Group
CoStar GroupNASDAQ: CSGP: Provides global real estate information, analytics, and online marketplaces.
5+ YOE5+ years .NET (C#) development experience, AWS/cloud and distributed system experience, REST/ASP.NET MVC, data modeling, familiarity with LLMs and observability; Bachelor’s degree required.
C#, .NET Framework, SQL Server, AWS, Web API, ASP.NET MVC, Lambda, DynamoDB, SQS, large language models (LLMs)