Associate Fullstack Developer (Back-End Focused)

Own the backend: design, build and maintain scalable services and RESTful APIs in C# and ASP.NET Core

Contribute to modern React (TypeScript) / NextJs applications by implementing and maintaining frontend features

Design the data model and build against a relational database (SQL Server) — schema design, ORM, migrations, query optimization and performance tuning

Implement authentication, authorization and role-based access control using Microsoft Entra ID, JWT and OAuth2, including row-level data restrictions and planning the configuration on Azure App registration level

Build real-time and collaborative features using SignalR hubs

Participate in CI/CD, containerization and deployment together with DevOps

Break complex work into deliverable increments, estimate it credibly, and flag risk early

Partner with the Project Manager and domain experts to shape and clarify requirements: surface the edge cases, challenge scope, and propose the cheaper version when there is one

1.5+ years of professional full-stack experience with a strong backend focus

Good written and verbal communication in English, including with non-technical domain experts

Strong professional experience with C# and ASP.NET Core

Understanding of backend architecture — dependency injection, middleware, asynchronous programming, and the trade-offs between them

Proven experience designing and implementing RESTful APIs that other teams consume

Strong experience with relational databases: database design, ORM (e.g. EF Core), query optimisation and performance tuning

Experience with Microsoft Azure — compute, messaging, secrets management and managed identities

Experience with SignalR, message brokers, or comparable messaging and real-time technologies

Experience implementing authentication and authorization with JWT, OAuth2 and Microsoft Entra ID

Working knowledge of React and TypeScript, and experience integrating frontends with backend APIs

Experience with Git, CI/CD workflows, and shipping to production regularly

Track record of owning a system end to end — design, build, deploy, operate — not only delivering assigned tickets

Ability to make and defend architectural decisions with incomplete information, and to write them down

Comfortable working in an existing codebase — reading unfamiliar code, deciding what to keep, and refactoring the rest safely

Sound instincts on application security — you recognise an authorization gap or an unsafe default in review

Ability to work independently in a fast-paced environment — break down and estimate complex work, prioritise effectively, and raise risks early

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