Senior Software Engineer, Tenant Protection (Auth0)

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate with speed and urgency and execute with excellence. This is an opportunity to do career-defining work. We're all in on this mission. If you are too, let's talk. The Tenant Protection Team Auth0 is an easy-to-implement authentication and authorization platform designed by developers for developers. We ensure access to applications is safe, secure, and seamless for the more than 100 million daily logins worldwide. Our modern approach to identity enables this Tier-0 global service to deliver convenience, privacy, and security, allowing customers to focus on innovation. The Tenant Protection team is responsible for building and maintaining Auth0’s Attack Protection capabilities. The team serves as the first line of defence for our customers. Our mission is to protect all customer tenants from widespread, automated attacks before they reach a login box. We build and maintain the critical services that mitigate threats like credential stuffing, denial-of-service, and fraudulent signups at the edge The team works closely with our Machine Learning and AI teams to develop and deploy cutting-edge detection models. This collaboration allows application builders to provide a secure login experience for their users while isolating them from the complexities and ever-evolving tactics of these attacks. The Senior Software Engineer Opportunity We are looking for a Senior Software Engineer to join our Tenant Protection team. What you’ll be doing Be a part of a fast-paced, agile team. Design and build features using technologies such as Node.js (JavaScript/Typescript), AWS, Azure, MongoDB, PostgreSQL, DynamoDB and Kubernetes Lead the technical breakdown of complex requirements into clear, modular, and actionable engineering tasks, setting the standard for project clarity and velocity. Drive and own the engineering estimation process for medium to large -sized initiatives, effectively managing risk and communicating technical trade-offs, timelines, and dependencies to engineering and product leadership. Act as a key technical collaborator and influencer with internal stakeholders (e.g., Product Management, Security, Infrastructure), proactively aligning technical roadmaps and advocating for architectural changes that support long-term product vision. Collaborate with industry-leading experts to implement the cutting-edge of Identity Protocols and Open Standards such as OpenID Connect, OAuth and SAML Maintain and operate services at a large scale Participate in scheduled on-call rotations Mentor junior and mid-level engineers, providing guidance on system design, code quality, testing practices, and career development. Foster a culture of technical excellence and collaborative ownership. What you’ll bring to the role Practical experience using Node.js (JavaScript or Typescript) or a similar language Experience working on systems that are highly reliable, maintainable and scalable. Thorough understanding of application security and cloud security best practices A systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive A track record of influencing engineering strategy and driving complex, multi-quarter projects to completion across organisational boundaries. Demonstrated ability to coach and grow other engineers in areas of system architecture, security, and operational rigour. Experience with cloud environments (AWS and Azure preferred) The ability to communicate your ideas and collaborate with other team members effectively in a remote working environment. Experience designing, analysing, and troubleshootin ... (truncated, view full listing at source)