We are seeking a C# / .NET Developer with a deep understanding of Application-Level Security. This is not a “Security Administrator ” role; we need a builder who can implement, configure, and troubleshoot sophisticated Authentication and Authorization flows within a cloud-native Azure environment. You will be responsible for ensuring our applications are “secure by design ” by leveraging modern identity protocols and Azure-native security services.

Core Responsibilities :

– Implement Identity Flows : Develop and maintain robust Authentication (AuthN) and Authorization (AuthAuth) logic using ASP.NET Core Identity, Microsoft Identity Web, and OpenID Connect (OIDC) / OAuth 2.0.

– Azure Integration : Configure and manage App Registrations in Microsoft Entra ID, including defining API permissions, scopes, and service principals.

– Authorization Architecture : Design and implement fine-grained access control using Role-Based Access Control (RBAC), Claims-based authorization, and Policy-based authorization in .NET.

– Secure Secrets Management : Shift applications away from connection strings toward Azure Managed Identities and Azure Key Vault for secure, passwordless resource access.

– Token Management : Handle JWT validation, token caching, and “On-Behalf-Of ” (OBO) flows for secure service-to-service communication.

Required Technical Skills :

– C# / .NET : Expert-level proficiency in ASP.NET Core (6/8+).

– Identity Protocols : Strong grasp of OAuth2, OIDC, and SAML.

– Azure Platform : Hands-on experience with Azure App Service, Azure Functions, and Entra ID (Azure

AD).

– Security Tools : Proficiency with the Azure Identity Client Library (e.g., DefaultAzureCredential).

Preferred Project Experience :

– Experience migrating an application from “Legacy/Form-based Auth ” to a modern Azure Entra ID SSO implementation.

– Proven track record of implementing Multi-tenant application security.

– Experience configuring Conditional Access policies from a developer’s perspective (e.g., handling “Claims Challenges ” in code).

Are you interested in this position?

Apply by clicking on the “Apply Now” button below!

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