Software Developer - Identity & Authentication Team

Your work days are brighter here. We’re obsessed with making hard work pay off, for our people, our customers, and the world around us. As a Fortune 500 company and a leading AI platform for managing people, money, and agents, we’re shaping the future of work so teams can reach their potential and focus on what matters most. The minute you join, you’ll feel it. Not just in the products we build, but in how we show up for each other. Our culture is rooted in integrity, empathy, and shared enthusiasm. We’re in this together, tackling big challenges with bold ideas and genuine care. We look for curious minds and courageous collaborators who bring sun-drenched optimism and drive. Whether you're building smarter solutions, supporting customers, or creating a space where everyone belongs, you’ll do meaningful work with Workmates who’ve got your back. In return, we’ll give you the trust to take risks, the tools to grow, the skills to develop and the support of a company invested in you for the long haul. So, if you want to inspire a brighter work day for everyone, including yourself, you’ve found a match in Workday, and we hope to be a match for you too. About the Team At Workday, the Authentication Security team is the cornerstone of our user trust and safety. We build and maintain the critical services that act as the front door to our entire ecosystem. Our mission is to provide secure, scalable, and seamless access for millions of users, protecting their data while enabling a frictionless experience. We are a team of passionate engineers dedicated to solving complex challenges in the authentication and identity space! About the Role Join our Identity & Authentication Security team as an experienced Senior Software Developer to design and build highly resilient identity and authentication systems. We’re looking for a hands-on technical leader who loves building scalable, distributed security infrastructure. In this role, you will bridge the gap between Identity Lifecycle Management (provisioning/SCIM) and Authentication standards (OIDC, SAML, FIDO). You will thrive in ambiguity, turning abstract security requirements into concrete, robust solutions that remain resilient under heavy load. If you are a problem-solver who enjoys navigating complex security architecture and mentoring others to do the same, this is your opportunity to shape the future of our platform. What You’ll Do Architect Identity Lifecycle Management : Design and implement robust SCIM (System for Cross-domain Identity Management) endpoints to automate the provisioning, updating, and de-provisioning of users across the Workday ecosystem. Modernize Authentication Services : Build and maintain high-performance services and APIs for secure, seamless access using OIDC, OAuth 2.0, SAML, and FIDO standards. Define Platform Strategy : Partner with engineering and product leadership to bridge the gap between security requirements and a concrete roadmap for our identity and access management (IAM) platform. Ensure Data Consistency : Solve complex synchronization challenges, ensuring user identity attributes remain consistent and secure across distributed microservices and external identity providers. Engineer for Resilience : Leverage design patterns like circuit-breaking, idempotency, and backpressure to ensure our identity services remain available under heavy load and during partial system failures. Champion Best Practices : Lead the adoption of clean code, scalable software design patterns, and comprehensive technical documentation within the team. Collaborate and Innovate : Work across engineering and support organizations to debug complex identity flows, resolve customer-facing authentication issues, and iterate on new security features. Operational Excellence : Participate in a shared on-call rotation, leading incident response and service restoration for the critical infrastructure that protects our users. About You Basic Qualifications 5 years of s ... (truncated, view full listing at source)