Senior Software Engineer (Core Frontier)

We are hiring for a new team within Core Identity, the Engineering organization entrusted with the very heart of the Auth0 application. Our teams own the authentication pipeline, identity protocols, user sessions, and all the fundamental concepts and foundational elements that underpin our entire product. We are also the stewards of the platform's technical health, performance, and efficiency.

As a Senior Engineer for this new team, named Core Frontier, you will operate at the vital intersection of deep product innovation and the global customer experience. Your mission is to ensure that the sophisticated features developed across the Core Identity organization (such as Native to Web, Cross-App Access and Custom Token Exchange) are hardened, scaled, and seamlessly integrated into the Auth0 ecosystem. You will act as the architectural bridge, ensuring that complex internal logic translates into a polished, secure, and high-performance experience that millions of developers and end-users interact with every day.

This is an opportunity to solve complex distributed systems challenges at a global scale, whilst providing a delightful and secure experience for our customers. You will primarily work with our NodeJS backend (TypeScript/JavaScript), with data stored in MongoDB, PostgreSQL, and Redis, all running on a multi-cloud infrastructure (AWS and Azure). If you have a passion for simplifying complex problems, building resilient and secure software, and care deeply about the final 'feel' of a product, we encourage you to apply. Experience with or an interest in Identity and Access Management is highly valued.