Senior Auth0 Engineer

JOB TITLE: Senior Auth0 Engineer
JOB LOCATION: Sydney, NSW
JOB DURATION: 12-month contract
We are seeking a Senior Auth0 Engineer to join a technology team delivering identity and access management solutions. This role is ideal for an experienced engineer with strong hands-on expertise in Auth0, OAuth 2.0, OIDC, SAML, token management, and application integrations.
Key Responsibilities

• Implement and configure Auth0, including Universal Login, custom databases, enterprise connections, Rules and Actions.
• Work with Auth0 Management API and Authentication APIs to develop and integrate identity solutions.
• Design and implement authentication and authorisation solutions using OAuth 2.0, OIDC and SAML.
• Integrate Auth0 with Java/Spring Boot and .NET applications, including use of relevant Auth0 SDKs.
• Manage JWT validation, refresh token rotation, scopes and claims mapping into application authorisation models.
• Configure and manage Auth0 tenants, custom domains, branding and MFA/passkey enrolment flows.
• Implement and manage Machine-to-Machine (M2M) integrations.
• Troubleshoot authentication, authorisation and identity integration issues across applications and platforms.

Key Skills & Experience

• Strong hands-on Auth0 implementation and engineering experience.
• Strong protocol-level understanding of OAuth 2.0, OIDC and SAML.
• Experience integrating Auth0 with Java/Spring Boot and .NET applications.
• Strong understanding of JWTs, refresh tokens, scopes, claims and application authorisation.
• Experience with Auth0 tenant configuration, custom domains, MFA and passkeys.
• Experience implementing Machine-to-Machine authentication/integrations.
• Strong troubleshooting and integration skills across identity and application environments.

Please submit your current resume to apply. If you'd like a confidential discussion about the role, please contact Bidisha Swayamprava on , quoting reference JN -8. To learn more about Davidson, visit .