NET & React Full Stack Developer

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., * 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

• 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