Senior Java Spring Boot Developer (SAML & OAuth)

Job Title: Senior Java Spring Boot Developer (SAML & OAuth) Location: Remote Engagement Type: Contract (Initial part-time, hourly; potential to convert to full-time) About the Role We are seeking a highly experienced Senior Java Spring Boot Developer with deep expertise in OAuth 2.0 and SAML 2.0 to design and build secure, production-grade microservices.

This role requires a hands-on engineer who can develop authentication and authorization mechanisms from the ground up and integrate with enterprise identity providers.

Key Responsibilities Develop and maintain production-grade microservices using Java 17+ and Spring Boot Implement and manage OAuth 2.0 flows, including: Authorization Code Client Credentials PKCE Token Introspection Refresh Token Rotation Integrate SAML 2.0 Single Sign-On (SSO) with enterprise identity providers such as Okta, Azure AD, and Ping Identity Build and manage distributed job scheduling systems using: Quartz Scheduler (clustered) Spri...