4Bell Technology

Staffing & Recruiting

Sr. .NET Backend Developer(R-2070)

1,200,000.00-1,600,000.00/A

Any Degree

IT (Information Technology)

Full-time

Ahmedabad

20-Oct-2026

ASP.NET Core .NET Design Patterns ASP.NET Core middleware JWT-based authentication AI-assisted development tools such as GitHub Copilot/Co

Job Description

  • Design, develop, and maintain scalable ASP.NET Core Web APIs and backend applications.
  • Implement custom and built-in ASP.NET Core middleware, request pipelines, and authentication/authorization mechanisms.
  • Develop secure JWT-based authentication, refresh-token flows, role-based access control, and claims-based authorization.
  • Design APIs supporting multiple user roles such as Admin, Customer, and other business roles.
  • Work with Entity Framework Core for database operations, including Code First and Database First approaches.
  • Optimize SQL queries, stored procedures, indexes, and database access for high-performance applications.
  • Implement asynchronous programming using async/await and ensure efficient handling of long-running operations.
  • Apply Clean Architecture, SOLID principles, Dependency Injection, and appropriate design patterns.
  • Troubleshoot and resolve production issues involving CPU, memory, database performance, concurrency, deadlocks, and application failures.
  • Analyze application and database performance using appropriate profiling and monitoring tools.
  • Write clean, maintainable, testable, and reusable code.
  • Collaborate with architects, developers, QA, DevOps, and business stakeholders.
  • Leverage AI-assisted development tools such as GitHub Copilot/Codex for actual code generation and development productivity.