🔹 Senior .NET Full Stack Software Engineer (AWS | React Native | GenAI | Automation)

🔹 Senior .NET Full Stack Software Engineer (AWS | React Native | GenAI | Automation)

📍 Hybrid: 3 days onsite: Tysons VA preferred. Rockville, MD

🕒 Full-Time

💼 Senior Level (7+ years experience)

We are seeking an experienced Senior Full Stack Software Engineer with strong expertise in .NET Framework, React Native, AWS Cloud, automated testing, and AI-assisted development tools.

This role is ideal for an engineer who can maintain legacy .NET applications while also contributing to modern cloud-native and mobile solutions.

🔧 Core Responsibilities

• Maintain and enhance .NET Framework 4.7.2 applications (ASP.NET Web Forms, MVC, Razor, WCF)
• Develop and support RESTful APIs, SOAP services, WCF services
• Build cross-platform mobile applications using React Native (iOS & Android)
• Design and deploy scalable solutions on AWS (EC2, ECS, S3, RDS, Lambda, SQS, SES, etc.)
• Implement automated testing strategies using Selenium, Playwright, or similar
• Leverage GenAI tools (Copilot, CodeWhisperer, Amazon Q, etc.) to enhance development workflows
• Participate in architecture modernization initiatives (.NET Core migration)
• Contribute to CI/CD and DevOps improvements

🛠 Required Skills

Backend

• .NET Framework 4.7.2
• C#, ASP.NET Web Forms (.aspx), MVC, Razor
• WCF Services
• REST/SOAP APIs
• Oracle or PostgreSQL

Frontend & Mobile

• React Native (preferred)
• React.js
• JavaScript / TypeScript
• jQuery, AJAX

Cloud

• AWS (EC2, ECS, S3, RDS, Lambda, CloudFormation)

Testing

• Selenium or Playwright
• Unit testing (xUnit/NUnit/MSTest)
• API testing (Postman/Swagger)

AI & LLM

• Experience using GenAI tools such as:
• GitHub Copilot
• Amazon CodeWhisperer
• Amazon Q Developer
• Understanding of LLM integrations & prompt engineering is a plus

🎯 Required Experience

• 7+ years of software development experience
• 3+ years .NET Framework (Web Forms + WCF)
• 3+ years React Native
• 3+ years AWS
• 2+ years automated testing
• Strong SQL & database design experience

⭐ Nice to Have

• ActiveReports
• .NET Core migration experience
• Docker / Kubernetes / ECS
• Terraform / CloudFormation
• AWS Certifications
• CI/CD (Jenkins, GitHub Actions)
• Experience with AI agents / LLM integrations

👥 Interview Process

• Initial technical screening
• Technical lead interview
• Final discussion

If you’re a strong full stack engineer comfortable working across legacy and modern stacks — and enjoy automation, cloud, and AI-enhanced development — we’d love to speak with you.

Apply now or message directly.