Senior OAuth Engineer — Auth0, MFA & API Security

Tata Consultancy Services; City of Melbourne; On-site; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Attractive compensation

Global exposure with local impact

Empowering leadership

Continuous learning & certifications

Inclusive, collaborative culture

Job summary

Tata Consultancy Services Australia is seeking an experienced security-focused developer to implement and manage authentication and authorization across enterprise apps. You will work with Auth0, OAuth/ OIDC and SAML, integrating Java/Spring Boot and .NET systems, and ensure robust JWT-based security and MFA capabilities.

You will participate in secure API protection, account for machine-to-machine scenarios, and advance authentication strategies across local and global projects.

Qualifications

• Hands-on Auth0 implementation across Universal Login and related areas.
• Deep knowledge of OAuth 2.0, OIDC and SAML 2.0, including flows and security risks.
• Experience integrating Java/Spring Boot and .NET with APIs and middleware.
• Practical JWT validation, JWKS, signing algorithms and token controls.
• Experience deploying client credentials / machine-to-machine setups.
• Exposure to MFA, WebAuthn, passwordless auth and adaptive authentication.

Skills

Auth0

OAuth 2.0 / OIDC / SAML

Java / Spring Boot

.NET integration

JWT validation & security

Client credentials flow

MFA / WebAuthn

Tools

Auth0

Java

.NET

JWT

Job description

Tata Consultancy Services Australia is seeking an experienced security-focused developer to implement and manage authentication and authorization across enterprise apps. You will work with Auth0, OAuth/ OIDC and SAML, integrating Java/Spring Boot and .NET systems, and ensure robust JWT-based security and MFA capabilities.

You will participate in secure API protection, account for machine-to-machine scenarios, and advance authentication strategies across local and global projects.