18 backend net developer jobs at 10 companies in Hyattsville, MD
3w
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Sr. Backend Engineer (.NET Core)
Washington or Falls Church
RemoteFull Time
6+ YOE6+ years backend development with 4+ years .NET Core/C#, experience leading offshore teams, Azure SQL, Azure Service Bus, Azure API Management, CI/CD with Azure DevOps and Veracode, API and microservices design.
.NET Core, C#, Azure SQL, Azure Service Bus, Azure API Management (APIM), Azure DevOps, Veracode, React, Oracle Fusion Cloud, Claude Code, GitHub Copilot, Cursor
1mo
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Back-End Software Developer
Arlington, Virginia, United States
$120k-$160k/yr OnsiteFull Time
U.S. citizen with active Secret clearance; experience with C#/.NET Core or .NET Framework, PL/SQL, API development, RESTful services, Git/Gitlab, and enterprise application delivery in Agile environments.
Microsoft .NET Core, Microsoft .NET Framework, C#, PL/SQL, Git, Gitlab, REST API, JWT, Docker, CI/CD
1mo
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Back-End Software Developer
Arlington, Virginia, United States
OnsiteFull Time
U.S. citizen with active Secret clearance; proven API development using C#/.NET Core or .Net Framework; PL/SQL and relational DB experience; REST/JWT, Git/GitLab, Docker, CI/CD; enterprise application development in Agile.
C#, .NET Core, .Net Framework, PL/SQL, SQL, Git, GitLab, REST, JWT, Docker, CI/CD, VB.NET
2w
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Back-End Developer
Springfield, Virginia, United States
$100k-$145k/yr OnsiteFull Time
8+ YOEBachelor's degree,8+ years back-end experience,active DoD clearance (Top Secret/SCI),expertise in server-side languages,APIs,databases,security practices for classified environments.
Python, Java, C#, Ruby, Docker, Kubernetes, Django, Spring, .NET, MongoDB, Cassandra, REST, GraphQL, AWS, Azure, GCP, Node.js, PostgreSQL, MySQL, Kafka, RabbitMQ, Redis, Memcached, Terraform, Ansible, AWS Lambda, Azure Functions
3w
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Software Engineer - .NET / SES
Reston, Virginia, United States
OnsiteFull Time
3+ YOE3–5 years backend software experience with C#/.NET, APIs/microservices, relational databases, CI/CD, cloud (AWS/Azure), and strong problem-solving skills.
C#, .NET, REST, gRPC, SQL Server, MySQL, GitHub, Azure DevOps, Jenkins, Docker, Kubernetes, Kafka, RabbitMQ, IBM MQ, AWS, Azure, React, JavaScript, TypeScript
3w
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Software Engineer - .NET / APIS
Reston, Virginia, United States
OnsiteFull Time
3+ YOE3+ years experience building C#/.NET backend services, APIs and microservices; SQL Server/MySQL; CI/CD and cloud (AWS/Azure); strong problem solving and teamwork; Bachelor\u0002s degree.
C#, .NET, REST, gRPC, SQL Server, MySQL, GitHub, Azure DevOps, Jenkins, Docker, Kubernetes, Kafka, RabbitMQ, IBM MQ, AWS, Azure, React, JavaScript, TypeScript
2w
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Senior Software Engineer
Tysons, Virginia, United States
$113k-$148k/yr HybridFull Time
5+ YOEBachelor's or equivalent experience,5+ years software development,strong OOP skills,C#/.NET and SQL Server experience,backend APIs,Ember.js,CI/CD,Kafka knowledge and IoT experience preferred.
C#, .NET, SQL Server, Ember.js, Kafka, CI/CD
4w
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Senior Full-Stack Developer
Reston, Virginia, United States
OnsiteFull Time
7+ YOE7+ years building full-stack apps with modern JavaScript/TypeScript front ends, a mainstream backend (Node.js, Python, Java, .NET), relational databases, system integrations, secure development, and offline-resilient designs.
JavaScript, TypeScript, Node.js, Python, Java, .NET, ASYCUDA, SYDONIA, ETL, ELT, CI/CD
1mo
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Software Engineer
Arlington, Virginia, United States
$69k-$158k/yr HybridFull Time
3+ YOE3+ years professional software engineering experience, Bachelor's in CS or Computer Engineering, Secret clearance required. Experience with C#, C, C++, .NET, JavaScript; backend and frontend development; Linux, Java, React, NodeJS, Rust and databases are desirable.
C#, C, C++, .NET, JavaScript, Java, React, NodeJS, Linux, Rust, Database
1w
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Software Developer - Junior (Team 01)
Washington, District of Columbia, United States
$100k-$115k/yr OnsiteFull Time
1+ YOEAt least 1 year developing, testing, and deploying backend software; Java experience; bachelor's degree or equivalent experience; active Top Secret clearance with SCI eligibility.
Java, JavaScript, Go, Python, TypeScript, .NET, Java Development Kit, Java Spring, Node.js, Go Gin, AngularJS, React, Next.js, Spring, NestJS, Gin, Google Web Toolkit, Hibernate, Struts, Git, Jira, SonarQube, GitLab SAST, Jest, Mocha, Chai, Tailwind CSS, Material UI, Express, npm, SOAP, Maven, Gradle, Confluence, Microsoft Excel
1mo
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Software Engineer
Annapolis, Maryland, United States
HybridFull Time
4+ YOE4+ years backend .NET (Framework/.NET Core) experience using C#, strong OOP and design patterns, RESTful services, MS SQL/T-SQL, unit testing, legacy modernization experience, cloud-native SaaS/PaaS familiarity.
.NET Framework, .NET Core, C#, Microsoft SQL Server, T-SQL
1w
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Software Developer - Junior (Team 01)
Washington, District of Columbia, United States
$100k-$115k/yr OnsiteFull Time
1+ YOEMinimum 1 year developing, testing, and deploying backend software; Java experience required. Requires bachelor's degree or equivalent experience and active Top Secret clearance with SCI eligibility.
Java, JavaScript, Go, Python, TypeScript, .NET, Java Development Kit (JDK), Java Spring, Node.js, Go Gin, AngularJS, React, Next.js, NestJS, Google Web Toolkit, Hibernate, Struts, Git, Jira, SonarQube, GitLab SAST, Jest, Mocha, Chai, Tailwind CSS, Material UI, Express, npm, SOAP, Maven, Gradle, Confluence, Microsoft Excel
4w
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Software Engineer II
Tysons, Virginia, United States
$88k-$123k/yr HybridFull Time
2+ YOEBachelor's degree or equivalent experience, 2+ years professional software development, strong OOP skills (C# preferred), backend/SQL experience, familiarity with modern JS frameworks and unit testing.
C#, .NET, SQL Server, Kafka, Ember.js, Angular, React, iOS, Android
2mo
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Software Developer (Mid) TS/SCI
Arlington, Virginia, United States
$130k-$145k/yr OnsiteFull Time
5+ YOEActive DoD TS/SCI clearance, 5+ years software development experience, bachelor’s degree (or equivalent experience), AWS certifications, experience with backend languages and frameworks, Agile/SDEL processes, and DevOps/tooling experience.
Java, JavaScript, Go, Python, TypeScript, .NET, Java Development Kit, Spring, Node.js, Gin, AngularJS, React, Next.js, NestJS, Google Web Toolkit, Hibernate, Struts, Git, GitLab, Terraform, Splunk, HashiCorp Vault, JIRA, Jenkins, Ansible, Amazon Web Services GovCloud, PostgreSQL, Amazon RDS, Keycloak, OIDC, SAML, Microsoft Windows Server, Linux
1mo
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Senior Software Engineer
Annapolis, Maryland, United States
HybridFull Time
8+ YOE8+ years backend .NET experience with C#, Microsoft SQL Server/T-SQL, unit testing, RESTful services, cloud-native SaaS/PaaS experience, and ability to modernize legacy systems.
.NET Framework, .NET Core, C#, Microsoft SQL Server, T-SQL
1mo
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Senior Full Stack AI Engineer
Jacksonville or Iselin or Washington
$110k-$190k/yr OnsiteFull Time
7+ YOE7+ years software engineering, expert React, backend framework experience (Node.js, Python, .NET Core), secure public-facing app and cloud architecture experience, hands-on use of AI coding tools and agentic workflows.
React, Node.js, NestJS, Express, Python, FastAPI, Django, Microsoft .NET Core, AWS, Microsoft Azure, GCP, Claude Code, GitHub Copilot, Cursor, Replit, Lovable
3mo
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Full Stack Developer (C#)
Ashburn, Virginia, United States
$104k-$218k/yr HybridFull Time
7+ YOEU.S. citizen able to pass CBP background checks, B.S. in CS or related (or equivalent experience), 7+ years backend development experience, expert C#, .NET/.NET Core, microservices, Kafka, PostgreSQL/Oracle/MongoDB, Git, unit testing, Visual Studio, Docker; hybrid in Ashburn, VA.
C#, .NET Framework, .NET Core, MongoDB, Kafka, PostgreSQL, Oracle, Git, Visual Studio, Docker, NUnit, xUnit, MSTest, AWS, Google Cloud, Dynatrace, AppDynamics, SCOM, Prometheus, Grafana, Terraform, CloudFormation, Kubernetes, Jenkins, Harness, GitLab
1mo
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Staff Software Engineer in Test
Budapest or New York City or Washington or Vancouver or London or Galway or Munich or Bengaluru or Singapore or Sydney
HybridFull Time
5+ YOE5+ years in test engineering, strong TypeScript and Playwright experience, API/backend testing, CI/CD (GitHub Actions), AWS/serverless and DevOps familiarity, LLM/AI testing knowledge, strong communication and mentoring skills.
TypeScript, Playwright, AWS CDK, AWS serverless services, GitHub Actions, .NET, Angular, Docker, LLMs