Our client is a leading B2B Technology provider.
Role
Our client is hiring experienced .NET Web Engineers to join a growing engineering team building secure, modern web applications. This role is mainly backend-focused in C#/.NET, with some React / Next.js frontend work, particularly around authentication and authorization.
This is a great opportunity for engineers with 5 years’ experience who have worked with APIs, identity providers, and modern web stacks, and want to deepen their skills in secure application development.
Responsibilities
Building and maintaining ASP.NET Core Web APIs (.NET 8+, minimal APIs)
Working with authentication and authorization in real-world systems
Integrating APIs with enterprise identity providers (Entra ID / Okta)
Supporting React / Next.js frontends with protected routes
Working on frontend and backend authentication flows (tokens, sessions, CORS basics)
Adding basic logging and audit capabilities for admin/back-office systems
Collaborating with backend and frontend engineers to deliver secure solutions
Requirements
Building secure .NET Web APIs (.NET 8+, minimal APIs, auth middleware, custom authorization handlers)
.NET 8+, C#, ASP.NET Core, ASP.NET Core Web APIs, React
Nice to Have
ASP.NET Core Authentication and Authorization, including experience with Microsoft EntraID (OpenID Connect, OAuth2), or other Identity and Access Management (IAM) / Identity Providers (IdP) solutions
Experience using Role- and claim-based access control (RBAC/ABAC, policy-based authorization)
Designing APIs with authorization baked in (roles, claims, scopes, attributes/directives)
React / Next.js apps with protected routes and identity provider integration
Frontend and backend auth flows (tokens, session handling, CORS basics)
Logging and audit basics for admin/back-office systems
The Rewards
As a reward for your commitment to this role you will receive an excellent salary and a competitive benefits package.
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