37 sr net developer jobs at 22 companies in Hagerstown, MD
1d
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.NET Developer
Herndon, Virginia, United States
$65k-$80k/yr RemoteFull Time
5+ YOEU.S. citizen able to obtain Public Trust, Bachelor's in IT or equivalent experience, 5+ years .NET development experience including C#, Webforms/MVC/Web API, ADO.Net/Entity Framework, web services, and Agile/Scrum.
.Net 4.x Framework, C#, Webforms, MVC, Web API, ADO.Net, Entity Framework, SOAP, XML, REST, JSON, jQuery, Bootstrap, Ajax, CSS, Microsoft Azure, DEVOP/CICD Pipeline, GITHUB, GIT, SQL, SSDT, MS SSRS, .NET Core Framework, SAFe Agile
1w
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Senior .NET Developer
Rockville or United States
HybridContract
US citizen required. Proficient in .NET Core/.NET 8, C#, Azure services, API security, Microsoft Entra ID/B2C, Azure OpenAI/Azure AI Foundry, GitHub Copilot, CI/CD, containers, SQL/Cosmos DB, and modern UI frameworks.
.NET Core, .NET 8, C#, Azure, App Services, Functions, API Management, Service Bus, Azure SQL, Azure OpenAI, Azure AI Foundry, GitHub Copilot, GitHub, Azure DevOps, CI/CD, Cosmos DB, Blazor, React, Angular, Microsoft Entra ID/B2C
2w
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Sr. NET Developer /AI Developer – Rockville, MD
Rockville, Maryland, United States
OnsiteContract
.NET Core/.NET 8 and C# expertise, strong Azure experience (App Services, Functions, Service Bus, Azure SQL), Azure OpenAI/AI Foundry experience, GitHub/GitHub Copilot or Azure DevOps, CI/CD, containers, SQL/Cosmos DB, modern UI frameworks, security and authentication.
.NET Core, .NET 8, C#, Microsoft Azure, App Services, Functions, API Management, Service Bus, Azure SQL, Azure OpenAI, AI Foundry, GitHub Copilot for Developers, ASP.NET Core, Microsoft Entra ID, B2C, GitHub, Azure DevOps, CI/CD, Blazor, React, Angular, Cosmos DB, SQL
2w
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Senior .NET Developer – Azure & AI Solutions
Rockville, Maryland, United States
OnsiteFull Time
Expert C#, ASP.NET Core, .NET 8/.NET Core, Azure and AI solution experience including Azure OpenAI, RAG, AI Agents, CI/CD, and modernizing legacy .NET apps.
.NET 8, .NET Core, C#, ASP.NET Core, Microsoft Azure, Azure App Services, Azure Functions, API Management, Service Bus, Azure SQL, Azure OpenAI, Azure AI Foundry, AI Agents, Retrieval-Augmented Generation (RAG), GitHub Copilot for Developers, Microsoft Entra ID/B2C, GitHub, Azure DevOps, SQL, Cosmos DB, Blazor, React, Angular
2mo
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.NET and Azure Architect
Herndon, Virginia, United States
RemoteFull Time
8+ YOE8+ years in full-stack development; expert .NET/C#, SQL Server; frontend with Angular/Blazor/React; RESTful APIs security; Azure; third-party integrations; mentoring; Agile Scrum; strong communication.
.NET, C#, SQL Server, Angular, Blazor, React, JWT, OAuth, Azure, REST APIs
1mo
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Sr Software Engineer - Architecture (Herndon, VA, US, 20171)
Herndon, Virginia, United States
HybridFull Time
5+ YOEBachelor's in relevant engineering/CS and 5+ years software engineering experience; expertise in OOP, web/REST services, Java/C#, .NET, Spring/Hibernate, SQL databases; 2 years utility domain experience preferred.
Windows, Linux, Unix, Spring, Hibernate, .NET, Microsoft SQL Server, MySQL, Java, C#, JDBC, REST, SOA, MVC, GUI frameworks
3mo
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Software Developer
Herndon, Virginia, United States
$112k-$179k/yr OnsiteFull Time
5+ YOETS/SCI with polygraph or ability to obtain; 5+ years software development; .NET, HTML, C#; DevOps tools; SQL Server; JavaScript; CSS; cross-browser code; strong teamwork and communication.
.NET, HTML, C#, JavaScript, Git, Azure DevOps, SQL Server, CSS
3mo
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Software Developer, Senior
Herndon, Virginia, United States
$133k-$226k/yr OnsiteFull Time
6+ YOEU.S. person required and must be able to obtain Top Secret/SCI with polygraph. Minimum 6 years software development experience; Bachelor's in CS/Information Security or equivalent. Proficiency with .NET (C#, WPF/XAML, C++), ASP.NET MVC Web API, HTML/CSS, Python, PowerShell, IIS, AWS/Azure, GitHub, Jira, Jenkins, Confluence, and Microsoft PowerBI.
.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service (STS), DataHound, Microsoft PowerBI
2mo
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Senior Software Developer
Herndon, Virginia, United States
OnsiteFull Time
6+ YOETop Secret/SCI with Poly, 6+ years in software development, BS in CS/Info Security or related field, proficient in .NET/C#/WPF/XAML/C++, ASP.NET Web API, HTML/CSS, Python, PowerShell; Windows apps/services/web services on IIS; AWS/Azure; GitHub/Jira/Jenkins/Confluence; STS/DataHound; PowerBI; Windows admin/troubleshooting; SDLC and IIS deployments.
.NET, C#, WPF/XAML, C++, ASP.NET Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service, DataHound, PowerBI
2mo
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Technical Lead (.NET)
Rockville, Maryland, United States
$131k-$222k/yr HybridFull Time
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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Principal Solutions Developer , Prototyping and Customer Engineering (PACE)
Boston or Austin or Arlington or Seattle or New York or Herndon or Chicago or San Francisco or Dallas
$183k-$284k/yr OnsiteFull Time
15+ YOE15+ years technical experience, bachelor's in CS/engineering/math (or equivalent), expertise in cloud architecture and CXO engagement, experience developing end-to-end solutions, programming with Python/JavaScript/Go/.Net/Java, EMR of distributed systems.
Python, JavaScript, Go, .Net, Java, AWS
1mo
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Robotic Process Automation Engineer
Ashburn, Virginia, United States
$87k-$198k/yr OnsiteFull Time
5+ YOE5+ years software development experience, UiPath or Power Automate expertise, scripting in .NET/C#/VB.NET/JavaScript/Python, SQL, experience with microservices and cloud platforms; Public Trust required.
UiPath, Orchestrator, Action Center, Document Understanding, Power Automate, AI Builder, .NET, C#, VB.NET, JavaScript, React, Python, SQL, AWS, Azure, Google Cloud Platform, Microsoft SharePoint, Microsoft Products, Microsoft Windows Server, Microsoft SQL Server
1mo
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IT Software Application Developer II (79635)
Sterling, Virginia, United States
OnsiteFull Time
10+ YOEBachelor's in CS or related (or equiv. experience); 10+ years full-stack web development with Java and .NET; experience with Spring Boot, ASP.NET MVC/Web API, Azure, Angular, HL7/FHIR, SQL databases, CI/CD, and healthcare compliance (HIPAA).
Java, .NET, ASP.NET MVC, Web API, Spring Boot, Azure, Angular, FHIR, HL7, EHR, SQL Server, PostgreSQL, SVN, Git, CI/CD, Jenkins, GitHub, Azure DevOps, Power BI, Pentaho, Microservices
1mo
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Robotic Process Automation Engineer
Ashburn, Virginia, United States
$87k-$198k/yr HybridFull Time
5+ YOE5+ years software development experience, 3+ years with legacy enterprise systems, experience with UiPath or Power Automate, scripting (.NET/C#/VB.NET/JavaScript/React/Python), SQL, cloud platforms; Public Trust required.
UiPath, UiPath Studio, UiPath Orchestrator, UiPath Action Center, UiPath Document Understanding, Power Automate, AI Builder, .NET, C#, VB.NET, JavaScript, React, Python, SQL, AWS, Azure, Google Cloud Platform, Microsoft SharePoint, Microsoft Windows Server, Microsoft SQL Server
6d
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Full Stack Developer - (BEAGLE)
Ashburn or United States
$75k-$120k/yr HybridFull Time
7+ YOE7+ years professional experience with full-stack Java or C# (.NET Core) development, Spring, Angular/React, relational databases, and software lifecycle practices; U.S. citizenship and ability to pass background checks required.
Java, C#, .NET Core, Spring MVC, Spring Boot, Angular, React, PostgreSQL, Hibernate, Entity Framework, Git, AWS
20h
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Software Developer, Senior
Herndon or Virginia or United States
$133k-$226k/yr OnsiteFull Time
6+ YOERequires 6+ years of software development experience, a related technical bachelor's degree or equivalent, object-oriented programming, enterprise applications, databases, testing, debugging, and software lifecycle experience.
C#, .NET, Java, Kotlin, C++, PowerShell, Microsoft Windows, IIS, Jenkins, AWS, Microsoft Azure, GitHub, Jira, Confluence
2mo
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Full Stack Software Engineer
Herndon, Virginia, United States
RemoteFull Time
Deep experience with .NET stack, C#, JavaScript, Microsoft SQL Server, Azure, unit testing, CI/CD, and Agile development practices.
.NET Core, .NET MVC (Razor), ASP.NET Web API, Microsoft SQL Server, Redis, ElasticSearch, Microsoft Azure App Service, Microsoft Azure Function App, Microsoft Azure Storage Account, C#, JavaScript, TypeScript, jQuery, JSON, HTTP, HTML, CSS/SASS, SQL, Microsoft Visual Studio, NUnit, Microsoft SQL Server Management Studio, Jenkins, Github Actions, Slack
2mo
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Application Developer Senior
Germantown or Chicago or Nashville or Washington
$91k-$185k/yr HybridFull Time
10+ YOESenior applications developer with Atlassian/Jira, Java/JavaScript, Azure, SQL; US citizen; willing to travel up to 25%; bachelor’s in CS or equivalent experience.
Jira, Confluence, Java, JavaScript, Azure, .NET, WebSphere, SQL, Power Platform, ServiceNow, IIS, Azure DevOps
1mo
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Senior Applications Developer
Germantown or Oak Ridge or Lemont
$135k-$216k/yr OnsiteFull Time
12+ YOEBachelor's degree in CS/IT/Software Engineering (or equivalent experience), US citizen able to obtain DOE clearance, extensive experience with Jira/Atlassian Cloud migrations, Azure development, Java/.NET/JavaScript, SQL and web server administration.
Jira, Confluence, Atlassian Cloud, Atlassian Custom Developer Tools, Java, JavaScript, .NET, C++, C#, HTML, CSS, SQL, SQL Managed Instance, Azure App Service, Azure SQL Managed Instance, Azure DevOps, PowerShell, WebSphere, IIS, Eclipse, ServiceNow, Oracle BI, SQL Stored Procedures, Microsoft Visual Studio, Microsoft Power Platform
2mo
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Senior Software Developer
Herndon, Virginia, United States
OnsiteFull Time
6+ YOETop Secret/SCI with Poly required,6+ years software development,BS or equivalent,proficiency with .NET(C#,WPF/XAML,C++),ASP.NET MVC,HTML/CSS,Python,PowerShell,AWS,Azure,GitHub,Jira,Jenkins,Confluence,STS,DataHound,PowerBI,Windows administration.
.NET, C#, WPF/XAML, C++, ASP.NET MVC Web API, HTML/CSS, Python, PowerShell, IIS, AWS, Azure, GitHub, Jira, Jenkins, Confluence, Secure Token Service (STS), DataHound, Microsoft PowerBI