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Our client is seeking a Senior Backend Engineer with deep expertise in OAuth 2.0, Auth0, and backend development using .NET (C#) and PHP. This engineer will help design and implement identity, authorization, and reseller-channel features within a distributed, multi-tenant architecture. This is a hands-on development role requiring strong systems-level thinking and experience building secure, scalable, service-oriented systems.
Job Responsibility:
Design and implement OAuth 2.0 authentication/authorization flows
Integrate client’s platform with Auth0 (Okta), including identity provider configuration
Develop backend services using .NET (C#) and PHP
Support microservices and distributed systems architecture efforts
Model complex reseller / channel-partner ecosystems and access patterns
Contribute to platform-wide security, API design, and hierarchical access models
Assist in implementing white-label, multi-tier, and multi-tenant system features
Collaborate with engineering leadership during an accelerated implementation window (Auth0 rollout through April 1)