Top Senior C# Jobs in Washington, DC

15 Days AgoSaved
Hybrid
Washington, DC
97K-165K Annually
Senior level
97K-165K Annually
Senior level
Aerospace • Hardware • Information Technology • Security • Software • Cybersecurity • Defense
The Senior Software Developer will create and maintain software solutions for U.S. Navy weapon systems, ensuring quality and reliability through testing, code reviews, and collaboration with stakeholders.
Top Skills: ArcgisAsp.NetAzureC#JavaMicrosoft Sql ServerOraclePython
Reposted 3 Hours AgoSaved
In-Office or Remote
Washington, DC
105K-237K Annually
Senior level
105K-237K Annually
Senior level
Legal Tech
The Senior ServiceNow Developer designs and builds solutions on the ServiceNow platform, working with stakeholders to enhance legal practice operations and improve service delivery through automation and integrations.
Top Skills: .NetAPIsC#JavaScriptMid ServersPythonRestServicenowSoapSQL
Reposted 3 Hours AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Consulting
Seeking a Senior IT Developer/Engineer with extensive experience in .NET technologies, Oracle databases and software development lifecycle, to lead design and coding efforts.
Top Skills: Asp.NetC#CSSHTMLJavaScriptOracle 10GOracle 11GTelerik
Reposted YesterdaySaved
In-Office or Remote
Washington, DC
140K-200K Annually
Senior level
140K-200K Annually
Senior level
Software
Lead the design and development of Windows desktop applications, ensuring performance, accessibility, and collaboration with various teams. Oversee the entire feature lifecycle and address complex issues in a user-centric manner.
Top Skills: C#C++Windows App SdkWinuiXaml
Reposted YesterdaySaved
In-Office
Washington, DC
Senior level
Senior level
Information Technology • Software
The Senior Applications Developer will design and implement software solutions, particularly using Angular, while ensuring quality and timely delivery of projects. Requires extensive software development experience and collaboration across teams.
Top Skills: .NetAmqpAngularC#JavaScriptJSONMqNode.jsNpmRestSharepointSoapXML
Reposted YesterdaySaved
In-Office or Remote
Washington, DC
150K-185K Annually
Senior level
150K-185K Annually
Senior level
Financial Services
The role involves full-stack development on financial technology solutions, focusing on user-facing applications, internal tools, and data pipelines, requiring collaboration across teams.
Top Skills: .NetAWSC#ConfluentDockerFastapiGithub ActionsKafkaKubernetesPostgresPythonReactSalesforceTanstackTerraformTypescript
2 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Information Technology • Cybersecurity
Develop and maintain C# automation to audit, extract, parse, compare, and publish data across multiple datasets and SQL databases. Build automated audit reports, test automation in varied environments, collaborate with QA and development teams to identify and resolve issues, deploy solutions across servers and domains, document processes, and continually improve automation frameworks and practices.
Top Skills: C#SQL
2 Days AgoSaved
In-Office or Remote
Washington, DC
83K-222K Annually
Senior level
83K-222K Annually
Senior level
Fitness • Healthtech • Retail • Pharmaceutical
Lead design, delivery, and operation of business-critical distributed systems. Build and maintain enterprise-grade, full-stack solutions, drive technical initiatives, mentor teammates, adopt new technologies, and deliver iterative customer-focused releases with emphasis on maintainability, performance, and scalability.
Top Skills: C#C++GoJavaJavaScriptPostgresPythonSQLSQL ServerTypescript
Reposted 2 Days AgoSaved
In-Office
Washington, DC
140K-175K Annually
Senior level
140K-175K Annually
Senior level
Information Technology
Lead the development of web applications, guiding feature development from design to production, while mentoring a small Agile team and driving modernization initiatives.
Top Skills: Asp.NetAWSAzureC#Ci/CdGCPMicrosoft .NetMs Sql ServerPlaywrightRestful Apis
3 Days AgoSaved
In-Office or Remote
Washington, DC
105K-237K Annually
Senior level
105K-237K Annually
Senior level
Legal Tech
Designs, develops, and deploys AI-driven, cloud-native applications on Azure. Builds RAG knowledge systems, AI agents, secure APIs, and orchestrated workflows using C#, .NET, Azure services, Docker, and CI/CD. Collaborates with stakeholders, ensures observability and security, supports production incidents, and provides documentation and knowledge transfer.
Top Skills: .Net 8.Net CoreAsp.NetAzure Ai FoundryAzure App ServicesAzure Application InsightsAzure DevopsAzure FunctionsAzure OpenaiAzure Service BusAzure Sql DatabaseAzure Web AppsC#Copilot StudioDnsDockerDurable FunctionsEmbeddingsEntra IdFirewallsGitGithub ActionsPrivate EndpointsRagVector SearchVnets
4 Days AgoSaved
In-Office
Washington, DC
145K-155K Annually
Senior level
145K-155K Annually
Senior level
Artificial Intelligence • Cloud • Information Technology • Security • Software
Design, build, test, integrate, secure, and maintain mission-focused software for classified national security and law enforcement programs. Develop APIs, databases, features, and scripts; participate in Agile delivery, release preparation, production support, troubleshooting, and documentation. Mentor team members and drive modernization, automation, and technical debt reduction.
Top Skills: .NetAPIsC#Database DevelopmentDevsecopsJavaJavaScriptPythonSecure CodingSource ControlSQLTesting
4 Days AgoSaved
In-Office
Washington, DC
130K-150K Annually
Senior level
130K-150K Annually
Senior level
Artificial Intelligence • Cloud • Information Technology • Security • Software
Design, develop, test, maintain, and support secure software applications for classified missions. Support CI/CD, DevSecOps, source control, automated testing, release management, and production troubleshooting. Contribute to Agile ceremonies, documentation, and system support. Mentor team members and identify modernization, automation, and technical debt reduction opportunities to improve mission application reliability and security.
Top Skills: .NetAPIsAutomated TestingC#Ci/CdDevsecopsJavaJavaScriptPythonSecure CodingSource ControlSQLWeb Services
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4 Days AgoSaved
In-Office
Washington, DC
98K-163K Annually
Senior level
98K-163K Annually
Senior level
Consulting
Design, develop, migrate, and maintain cloud-hosted .NET applications and Power Platform solutions. Implement REST APIs, microservices, CI/CD pipelines, and collaborate with DevOps and business teams to troubleshoot, document, and deploy cloud-native or hybrid systems.
Top Skills: .NetAsp.NetAWSAzureC#Ci/CdDevOpsMicroservicesPower AppsPower AutomateRelational DatabasesRest ApisSQLWeb Apis
Reposted 4 Days AgoSaved
Remote or Hybrid
Washington, DC
130K-196K Annually
Senior level
130K-196K Annually
Senior level
AdTech • Artificial Intelligence • Gaming • Machine Learning • Software • Virtual Reality • Metaverse
The role involves developing cross-platform API abstractions for the Unity Editor using modern C++. Responsibilities include maintaining codebases and collaborating with worldwide teams.
Top Skills: C#C++CocoaGtkWin32
Reposted 7 Days AgoSaved
In-Office
Washington, DC
113K-188K Annually
Senior level
113K-188K Annually
Senior level
Consulting
The Senior Power Apps Developer will implement Microsoft Power Platform solutions, interact with clients, and drive project phases while ensuring high-quality development standards.
Top Skills: .NetC#Microsoft DataverseMicrosoft Dynamics 365Microsoft Power AppsMicrosoft TeamsPower AutomatePower BISharepointSQL
Reposted 7 Days AgoSaved
In-Office
Washington, DC
117K-177K Annually
Senior level
117K-177K Annually
Senior level
Cloud • Information Technology • Software • Business Intelligence
Senior .NET Full Stack Developer responsible for designing, developing, testing, and enhancing enterprise .NET applications, integrating third‑party components, optimizing C#/ASP.NET code, automating operational workflows, and supporting large‑scale data processing and analytics. Works with lead architects across the SDLC and conducts architecture reviews, code reviews, and knowledge transfer.
Top Skills: .Net.Net CoreAsp.NetAsp.Net MvcAzure DevopsC#Ci/CdContainerizationCSS3DapperEntity FrameworkGitGitlabHTML5JavaScriptRestful ApisSQL Server
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Information Technology • Software
The Sailpoint Consultant will maintain and support SailPoint IIQ infrastructure, troubleshoot issues, develop scripts, and assist project teams with identity and access solutions.
Top Skills: BashC#C++JbossLinuxOracle DatabasesPythonSailpoint IiqSQLWindows
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Artificial Intelligence • Information Technology • Internet of Things • Software • Automation
Develop and implement a modern web information portal using front-end technologies, ensuring compliance with UX and 508 standards. Collaborate with stakeholders and integrate systems while managing project timelines and quality.
Top Skills: .NetAmqpAngularjsAsp.Net MvcBootstrapC#CSS3HTML5JavaScriptJqueryJSONNode.jsNpmRestSharepointSoapXML
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Artificial Intelligence • Information Technology • Internet of Things • Software • Automation
The .Net Developer will build software applications, collaborate with team members, document technical specifications, and resolve software issues.
Top Skills: .NetAsp.Net MvcC#LinqSQL
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Artificial Intelligence • Information Technology • Internet of Things • Software • Automation
The .Net Developer will design, develop, and maintain software applications, lead initiatives, document requirements, and resolve software issues.
Top Skills: .Net Core.Net FrameworkAsp.NetC#JavaScriptSitecoreSitefinitySQL ServerTransact Sql
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Artificial Intelligence • Information Technology • Internet of Things • Software • Automation
The .Net Developer will support business functions by developing, implementing, and maintaining applications, collaborating in a Scrum Team, and ensuring software meets specifications.
Top Skills: .Net FrameworkAsp.NetC#Classic AspCSSEntity FrameworkJavaScriptJqueryMvcSharepointSQL ServerT-SqlWebservicesWindows Workflow FoundationXhtmlXML
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Artificial Intelligence • Information Technology • Internet of Things • Software • Automation
The Sr. .NET Developer will support business functions by developing, implementing, and maintaining application systems, focusing on BI tools and Web APIs.
Top Skills: .NetBi ToolsC#Microsoft Visual Studio 2010Team Foundation ServicesWeb Apis
Reposted 7 Days AgoSaved
In-Office
Washington, DC
Senior level
Senior level
Artificial Intelligence • Information Technology • Internet of Things • Software • Automation
The Oracle PL/SQL Developer will provide infrastructure and back-end support, perform application testing and installation, and support user community by resolving database issues and performing UNIX administration functions.
Top Skills: Asp.NetBusiness ObjectsC#Crystal Reports XiMicrosoft Visual StudioOracle DatabaseOracle Pl/SqlVb.Net
Reposted 9 Days AgoSaved
In-Office
Washington, DC
62K-141K Annually
Senior level
62K-141K Annually
Senior level
Information Technology
Develop backend services for Digital Twin platforms, focusing on orchestration, integration, and runtime behavior while collaborating with Unity developers and data teams.
Top Skills: .NetC#FastapiKafkaPythonRabbitMQ
Reposted 9 Days AgoSaved
In-Office or Remote
Washington, DC
83K-222K Annually
Senior level
83K-222K Annually
Senior level
Fitness • Healthtech • Retail • Pharmaceutical
Design and maintain healthcare software integrations, ensuring data flow between Epic EHR and systems while mentoring developers and ensuring quality standards.
Top Skills: .NetAzure ServicesC#CacheCcdaFhirHl7 V2Hl7 V3 XmlInterface Engine MirthJavaScriptSQL
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