.Net Engineer

Augusta Hitech; India; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Augusta Hitech seeks a proficient .NET developer to design and build scalable RESTful APIs for a React frontend. You will own API contracts with clear OpenAPI specs, implement authentication and authorization (JWT, OAuth2/OIDC), and optimize data access with EF Core and SQL when needed.

The role requires strong testing discipline (unit and integration tests with xUnit or NUnit, using Testcontainers) and collaboration with frontend engineers to ensure efficient, single-request page loads.

Qualifications

• 3+ years with .NET, strong C# and ASP.NET Core
• REST fluency including paging and ProblemDetails
• EF Core production experience
• Real SQL skills and optimization
• Security fundamentals (OAuth2, JWT, OWASP)
• Frontend empathy and ability to read React code

Responsibilities

• Design and build RESTful APIs in ASP.NET Core for a React frontend.
• Own API contracts with clear OpenAPI specs and versioned endpoints.
• Query data with EF Core and use SQL when needed.
• Implement authentication and authorization (JWT, OAuth2/OIDC).
• Write unit and integration tests with xUnit/NUnit and Testcontainers.
• Diagnose performance issues, including N+1 queries and caching strategies.
• Collaborate with frontend engineers to optimize endpoint design for efficient page loads.

Skills

C#

ASP.NET Core

Async/Await

Dependency Injection

REST APIs

Testing (xUnit/NUnit)

Frontend empathy

Security fundamentals

Observability basics

Tools

Docker

Git

Testcontainers

OpenAPI/Swagger

Job description

• Design and build RESTful APIs in ASP.NET Core that serve our React frontend.
• Own the API contract: clear OpenAPI specs, versioned endpoints, consistent request and response shapes.
• Model and query data with EF Core, and drop to SQL when the query demands it.
• Implement authentication and authorization — JWT, OAuth2/OIDC, role and policy-based access.
• Write tests that matter: unit tests for logic, integration tests against a real database.
• Diagnose and fix performance problems, from N+1 queries to caching strategy.
• Partner with frontend engineers on endpoint design so pages load in one request, not nine.

What we are looking for

• 3+ years in .NET. Strong C# and ASP.NET Core, including async/await, dependency injection, middleware, and both controller-based and Minimal APIs.
• REST fluency. You know when to use POST vs PUT vs PATCH, how to paginate, and why ProblemDetails beats a custom error blob.
• EF Core in production. LINQ, migrations, change tracking, and the judgment to know when the ORM is the wrong tool.
• Real SQL skills. Indexing, execution plans, transactions. Comfortable reading a slow query and knowing why it is slow.
• Security fundamentals. Token handling, CORS, OWASP API risks, rate limiting.
• Frontend empathy. You do not need to write React, but you should be able to read it and understand how the frontend consumes what you build.
• Testing discipline. xUnit or NUnit, mocking, and integration testing with WebApplicationFactory or Testcontainers.
• Tooling. Docker, Git, and a CI/CD pipeline you have actually maintained.

Nice to have

• CQRS, MediatR, or vertical slice architecture
• Cloud deployment on Azure or AWS
• Redis, background job frameworks (Hangfire, Quartz)
• Structured logging and observability — Serilog, OpenTelemetry
• TypeScript, and experience generating typed clients from OpenAPI

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