.NET & React Full Stack Developer

AIS (Applied Information Sciences)•Washington, DC

1d•$100,000 - $150,000•Onsite

About The Position

AIS is seeking a .NET & React Full Stack Developer to join our team and support a mission-critical federal client in Washington, DC. In this role, you will contribute to the development, enhancement, and maintenance of secure web applications and services that support high-impact operations. You will work hands-on with the .NET framework and modern front-end technologies to build clean, efficient, and reliable solutions that integrate seamlessly across backend, frontend, and cloud environments.

Requirements

Active Top Secret clearance is required
Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field
3–5 years of professional software development experience using C# and the .NET framework
Hands-on experience with ASP.NET, Entity Framework, and SQL Server
Experience developing front-end applications or components using React, JavaScript/TypeScript, HTML, and CSS
Familiarity with architectural patterns and API styles, including REST and/or RPC
Experience integrating front-end components with back-end services and APIs

Nice To Haves

Experience with cloud platforms such as AWS or Azure
Basic understanding of DevOps practices or exposure to CI/CD pipelines (GitLab preferred)
Experience working with Object-Relational Mappers (ORMs) such as Entity Framework
Knowledge of relational or NoSQL database design principles
Experience with containerization tools such as Docker
Exposure to UI component libraries or modern front-end design patterns
Relevant certifications in .NET development, React/front-end development, cloud technologies, or software engineering

Responsibilities

Design, develop, test, and maintain full-stack application features using C#, ASP.NET, Entity Framework, SQL Server, React, JavaScript/TypeScript, HTML, and CSS
Build responsive, user-friendly front-end interfaces using React and modern UI development practices
Develop scalable and secure backend components and APIs to support application functionality
Modify and enhance existing code to improve performance, usability, and maintainability
Integrate third-party tools, APIs, and services as needed
Participate in the full software development lifecycle (SDLC), including planning, requirements analysis, development, testing, and deployment
Write clean, maintainable, and secure code aligned with best practices and team guidelines
Conduct unit and integration testing to ensure functionality and reliability
Troubleshoot and resolve application, integration, and performance issues
Use Git/GitLab for version control, branching, and team collaboration
Assist with remediation of code and package vulnerabilities identified through security scans