1,003 csharp jobs at 333 companies in Washington, DC

2mo
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Senior Systems Engineer
Vienna, Virginia, United States
OnsiteFull Time
Chenega Corporation
Chenega Corporation: Provides professional government, defense, and facility support services.
5+ YOEBachelor’s in CS/Math/GIS or STEM; 5+ years in similar role; ArcGIS deployment/admin; Windows/Linux admin; scripting (Python/PowerShell/JavaScript/C#); networks; SQL/RDBMS skills; TS/SCI with SCI eligibility (active)
ArcGIS, ArcGIS Enterprise, ArcGIS Online, PowerShell, Python, JavaScript, C#, SQL, SQL Server, Oracle, PostgreSQL, Windows, Linux
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Senior Application Developer
Fairfax, Virginia, United States
$135k-$165k/yr HybridFull Time
GovCIO
GovCIO: Provides technology and mission support services to federal agencies.
12+ YOEActive Secret clearance, 12+ years on large integrated projects (or commensurate experience) with 5+ years Java development; expertise in Java SE/EE, Spring Boot, REST, CI/CD, containerization, and federal security/compliance.
Java, ColdFusion, JavaScript, C#, Java SE/EE, Spring Boot, RESTful services, Maven, Gradle, Git, Jenkins, GitLab CI, Docker, Kubernetes, AWS GovCloud, Microsoft Azure Government
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Solution Architect
Washington, District of Columbia, United States
OnsiteFull Time
Highlight Technologies
Highlight Technologies: Provides IT and professional services to federal government agencies.
10+ YOEBachelor in CS; 10+ years senior-level experience in designing/implementing enterprise tech/architecture; 10 years in technical solutions and software development; experience with Angular, C#, .NET, SQL, HTML, Bootstrap, CSS, JavaScript, Less; ability to obtain/maintain public trust.
Angular, C#, DOTNET, SQL, HTML, Bootstrap, CSS, JavaScript, Less
1w
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AR/VR/XR Visualization Research and Development Engineer
State College or Reston
$127k-$241k/yr OnsiteFull Time
Penn State University
Penn State University: Provides higher education and conducts extensive academic research programs.
2+ YOEBachelor's in engineering or science, 2+ years relevant experience (5+ for senior), proficiency in C#, Python or Java, XR and visualization development, systems/software engineering, eligibility for US security clearance.
C#, Python, Java, Unity, Unreal, AWS, Azure, Docker, Podman, Kubernetes, Helm, ActiveMQ, DDS, Kafka, PostGRES-PostGIS, TCP, UDP
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Platform DevOps Engineer
Colorado Springs or Huntsville or Chantilly
$62k-$141k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
3+ YOE3+ years CI/CD (GitLab/Argo CD); Docker/Kubernetes; IaC (Helm/Terraform/Ansible); GitLab CI pipelines; C/C++/C#/tests; TS clearance; BS or 5+ yrs software dev.
GitLab CI, Argo CD, Docker, Kubernetes, Helm, Terraform, Ansible, C/C++, C, C#, Git
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Threat Engineer
Laurel, Maryland, United States
$100k-$245k/yr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
5+ YOEB.S. in science/engineering, 5+ years experience, missile defense or threat characterization experience, proficiency in MATLAB/Python/C/C++/C#/Java, strong communication, must hold interim Secret and obtain TS/SCI; U.S. citizenship required.
MATLAB, Python, C, C++, C#, Java
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Technical Lead - Solutions Architect
Washington, District of Columbia, United States
$180k-$215k/yr HybridFull Time
A-TEK
A-TEK: Provides digital transformation and scientific solutions to federal agencies.
10+ YOE5+ MgmtBachelor's degree,10+ years enterprise software experience,5+ years technical leadership; expertise in cloud (Microsoft Azure), application architecture, APIs, modernization, security, and DevSecOps; ability to obtain Tier 2 background investigation.
Python, C#, .NET, React, JavaScript/TypeScript, RESTful APIs, SQL, Microsoft Azure, Azure Government, Azure App Services, Azure Functions, Azure Storage, Azure Key Vault, Azure DevOps, Microsoft 365, SharePoint Online, Power Platform, Power Apps, Power Automate, Power BI, Dataverse, Microsoft Teams, Microsoft SQL Server, PostgreSQL, Git
5d
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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
5d
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Senior .Net Applications Developer
Washington, District of Columbia, United States
HybridFull Time
AVER
AVER: Provides data analytics and IT services for federal agencies
8+ YOE8+ years .NET application development experience, expertise with .NET Core/.NET 6, C#, Azure/DevOps, databases, web services, security protocols, and leading development teams.
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, Cosmos DB, MongoDB, jQuery, AJAX, Telerik Kendo UI, RESTful Web Services, Windows Services, ASP.NET Core, Entra ID (Azure AD), SAML, OAuth 2.0, OpenID Connect, JSON Web Token (JWT), RBAC, Windows Server 2019, Microsoft Visual Studio 2022, Azure Logic Apps, Event Grid, GraphQL
4d
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Senior .NET Developer
Washington, District of Columbia, United States
HybridFull Time
Andworx
Andworx: Delivers digital transformation and IT solutions for federal agencies.
8+ YOE8+ years building enterprise .NET applications, experience with ASP.NET/.NET Core/.NET 6, C#, MVC/MVVM, Entity Framework, Oracle, REST/SOAP/JSON/XML, Agile; U.S. citizenship and ability to obtain a Position of Trust (public trust) clearance.
ASP.NET, .NET CORE, .NET 6, MVC, MVVM, Entity Framework, Oracle, Azure DevOps, C#, REST, SOAP, JSON, XML
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Software Engineer (Front-End) / SES
Reston, Virginia, United States
OnsiteFull Time
Securiport
Securiport: Provides biometric and big data solutions for global border security.
3+ YOE3–5 years front-end experience with React/Blazor/Flutter, JavaScript/TypeScript, HTML5/CSS3, REST/gRPC API integration, CI/CD familiarity, basic SQL knowledge, and strong problem-solving.
React, Blazor, Flutter, JavaScript, TypeScript, HTML5, CSS3, gRPC, C#, .NET, RESTful APIs, Azure DevOps, Jenkins, DevExpress, SQL Server, MySQL, Docker, Azure, AWS, Kafka, Git, ASP.NET
1w
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Full Stack Developer
Arlington, Virginia, United States
$100k-$120k/yr HybridFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
3+ YOE5+ years full-stack experience with Python/JavaScript/C#/SQL, 3+ years JavaScript, degree in CS or related field, professional web development certification, experience with Azure/AWS, APIs, databases, and message brokers.
JavaScript, Python, SQL, C#, HTML, CSS, Typescript, jQuery, Angular, React, Node.js, Flask, Django, MySQL, Teradata, Apache, REST, gRPC, Azure, AWS, Kafka, EventHub, Azure DevOps, GitHub, Websockets, Databricks
1mo
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Jr. Software Developer
Stafford, Virginia, United States
$45k/yr HybridFull Time
Ariel Partners
Ariel Partners: A provider of IT solutions and software development services supporting mission-critical government and commercial programs.
1+ YOEActive Secret clearance, 1+ years software development experience with C#/.NET, Blazor/HTML/CSS, Entity Framework, unit testing (NUnit/xUnit), SQL Server, RESTful APIs, Agile, and CI/CD tools.
C#, HTML, Blazor, Entity Framework, NUnit, xUnit, Microsoft SQL Server, CSS, RESTful APIs, Microsoft .NET, Microsoft Azure DevOps, Jenkins, GitHub, AWS, Azure, Docker, Kubernetes, Angular, React
1w
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API Developer/Data Engineer Managing Consultant-Fraud/AI
McLean or New York City or Arlington or United States
$130k-$216k/yr HybridFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
5+ YOEUS citizen able to obtain Public Trust,5+ years in data engineering/integration, proficiency in Python, Java/JS, .NET (C#), RESTful APIs, XML, SQL/SQL Server, GCP, data formats (JSON, Parquet), and experience leading technical teams.
Python, Java, JS, C#, .NET, RESTful API, XML, SQL Server, SQL, CSV, TXT, JSON, Parquet, GCP, Apigee, Kong, Azure API Management, AWS API Gateway, LexisNexis, Oracle Mantas, Actimize, Fircosoft, Oracle Mantas, World-Check, Dow Jones, Chainalysis, Elliptic, TRM Labs
2mo
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Mid-Level CNO Reverse Engineer
Annapolis Junction, Maryland, United States
$105k-$200k/yr OnsiteFull Time
Belay Technologies
Belay Technologies: Provides specialized technology and engineering services to the DoD.
8+ YOETS/SCI with polygraph; bachelor’s degree or 12 years experience; 8 years reverse engineering; 5 years in reverse engineering; 5 years in REDACTED; strong programming in multiple languages.
Assembly, C, C#, C++, Java, Perl, Python, Reverse engineering tools
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SQL Systems Engineer Expert
Herndon, Virginia, United States
OnsiteFull Time
VTG
VTG: Provides engineering and digital modernization solutions for national security.
11+ YOETop Secret/SCI with Poly, bachelor’s degree required; 11+ years in systems engineering or enterprise Windows/SQL environments; strong AD, DNS/DHCP, SCCM, SQL Server, cloud and automation skills.
SQL Server, PowerShell, VBScript, C#, SCCM, Active Directory, DNS, DHCP, Azure, Windows Server, Cloud technology, Enterprise system integration
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Software Dev Engineer II, OMHS SCS
Arlington, Virginia, United States
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
3+ YOE3+ years professional software development, 2+ years design/architecture experience, 3+ years building large-scale embedded or distributed systems; proficiency with C#, C++, Java, or Perl; object-oriented design; Bachelor's degree required.
C#, C++, Java, Perl, CI/CD, AWS, Embedded Linux
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Senior Manager, AI Engineering (People Leader) (Gen AI Platform Services)
San Jose or San Francisco or McLean or Cambridge or New York
$251k-$286k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
4+ YOE1+ MgmtBachelor's in CS/AI/EE/CE + 6 years or Master's + 4 years developing AI/ML; 1+ year people leadership; experience with LLM inference, similarity search/VectorDBs, cloud deployments; Python/C++/C#/Java/Golang; strong communication and technical judgement.
AWS Ultraclusters, Huggingface, VectorDBs, Nemo Guardrails, PyTorch, Python, C++, C#, Java, Golang, AWS, Google Cloud, Azure
2mo
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Technical Lead (.NET)
Rockville, Maryland, United States
$131k-$222k/yr HybridFull Time
ICF
ICFNASDAQ: ICFI: Provides strategic consulting and technology services to global organizations.
10+ YOE5+ Mgmt10+ years software development, 5+ years leading teams, 3+ years React, US work authorized, Bachelor’s degree in CS.
C#, .NET, ASP.NET, JavaScript, React, Vue, SQL Server, T-SQL, Windows Forms, C++, Objective-C
1mo
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Engineering Director - Tax Product Development
New York or Boston or Chicago or Dallas or Grand Rapids or Houston or Washington or Philadelphia or Milwaukee or Denver or Seattle or Raleigh or Charlotte or Richmond or Atlanta or Orlando or Miami
$210k-$325k/yr OnsiteFull Time
BDO USA
BDO USA: Provides accounting, tax, and business advisory services to organizations.
10+ YOEBachelor's in CS/technology/engineering/math/finance/accounting with 10+ years tech experience (or HS/GED +12 years); 5+ years leadership preferred. Experience in cloud, AI, DevOps, microservices, CI/CD, containerization, SQL/NoSQL, C#, .NET, JavaScript/TypeScript, Python; Azure DevOps and ServiceNow; AZ-900 preferred.
Microsoft Office Suite, Azure, AWS, GCP, OpenAI, Anthropic, Docker, Kubernetes, SQL, NoSQL, C#, .NET, JavaScript/TypeScript, Python, Azure DevOps, ServiceNow, CI/CD, microservices, serverless, DevOps