Role Summary

We are looking for a hands-on .NET Developer with 3 to 5 years of experience in designing, developing, testing, and maintaining enterprise applications. The ideal candidate should have strong experience in C#, .NET/.NET Core, REST API development, and database development, along with practical exposure to GitHub Copilot or AI-assisted software development tools.

The role requires someone comfortable working across the backend development lifecycle, from API and database design through coding, testing, code reviews, debugging, and production support.

Key Responsibilities

- Design, develop, enhance, and maintain applications using C# and .NET / ASP.NET Core.
- Build and maintain RESTful APIs and backend services.
- Design API contracts, request/response models, validations, exception handling, authentication, and authorization.
- Develop and optimize SQL queries, stored procedures, functions, database objects, and data-access components.
- Work with SQL Server and ORM/data-access technologies such as Entity Framework Core.
- Perform API integration with internal and external systems.
- Implement secure and scalable application components following coding and API development best practices.
- Write unit tests and integration tests and participate in debugging and defect resolution.
- Use Git and GitHub for source-code management, branching, pull requests, and code reviews.
- Use GitHub Copilot effectively for coding, refactoring, test generation, documentation, and developer productivity while validating generated code for correctness, security, and maintainability.
- Participate in technical design discussions, sprint planning, code reviews, and Agile ceremonies.
- Troubleshoot application/API/database performance issues and support application releases.

Preferred candidate profile 3 to 5 years of skilled software development experience.

- Strong hands-on development experience with:
- C#
- .NET / .NET Core / ASP.NET Core
- Web API / REST APIs

- Entity Framework Core
- Strong knowledge of API development, including:




- HTTP methods and status codes

- REST principles

- JSON
- API validation and error handling
- Authentication and authorization, such as OAuth 2.0 / JWT
- API documentation using OpenAPI / Swagger
- Good experience with Microsoft SQL Server and database development, including:

- SQL queries and joins

- Stored procedures and functions

- Database design

- Indexing
- Query optimization and performance troubleshooting
- Experience with Git/GitHub, pull requests, branching, merging, and code reviews.
- Practical development experience using GitHub Copilot or similar AI-assisted development tools.
- Understanding of SOLID principles, object-oriented programming, design patterns, and clean coding practices.
- Experience with unit testing frameworks such as xUnit, NUnit, or MSTest.
- Good debugging, troubleshooting, and problem-solving skills.

Good to Have

- Experience with Azure services and cloud-hosted .NET applications.
- Knowledge of Azure DevOps or GitHub Actions for CI/CD.
- Experience with Docker and containerized applications.
- Understanding of microservices architecture.
- Experience with caching or messaging technologies such as Redis, Azure Service Bus, or RabbitMQ.
- Familiarity with application monitoring and logging using tools such as Application Insights or Serilog.

GitHub Copilot Expectations Candidates should be able to demonstrate how they have used GitHub Copilot in real development work, for example:

- Accelerating C#/.NET implementation.
- Generating or improving unit tests.
- Refactoring existing code.
- Creating API models, validation, and repetitive implementation code.
- Assisting with SQL/query development.
- Generating technical documentation.
- Reviewing and validating AI-generated code rather than accepting suggestions without verification.

Preferred Candidate A successful candidate will be a backend-focused .NET engineer who can independently take a requirement through API design database development implementation testing code review deployment/support, while using GitHub Copilot responsibly to improve development productivity and code quality.

📌 Dot Net Developer (Mumbai)
🏢 Sandhaanam
📍 Mumbai