.NET & React Full Stack Developer Jobs

Project Summary

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.

Key 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

• Collaborate with senior developers and architects to implement technical designs and follow established patterns and standards

• 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

• Support operations and maintenance (O&M) tasks, including bug fixes, minor enhancements, and performance tuning

• Participate in code reviews and incorporate feedback to continually enhance code quality and technical proficiency

• Assist with remediation of code and package vulnerabilities identified through security scans

Required For This Opportunity

• 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

• Experience writing and executing unit tests and performing integration testing

• Understanding of secure coding practices and willingness to follow vulnerability remediation guidance

Nice to Have Skills

• 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