Senior Software Development Engineer - Developer Platform

About the role

The Developer Platform team is building the foundation for Workday's open developer ecosystem. We design and deliver the platform capabilities, APIs, SDKs, and developer-facing services that enable external developers and partners to build on Workday products-including Peakon, HiredScore, VNDLY, and more. Our mission is to make the platform reliable, extensible, and straightforward for developers to adopt and extend. We work closely with principal engineers, product managers, and cross-functional teams to turn platform growth goals into well-scoped, high-quality engineering work. We care deeply about technical craft, give direct and constructive feedback, and celebrate shipping capabilities that developers actually want to use. If you are energized by hands-on platform implementation, contributing to architecture decisions, and helping other engineers grow, you will find a collaborative team that values thoughtful execution and makes the work enjoyable along the way. As a Senior Development Engineer on the Developer Platform team, you will design and build core platform capabilities that advance Workday toward a more extensible, developer-friendly ecosystem. You will deliver high-impact technical work, contribute to architecture and API/SDK design, and collaborate across product and engineering teams to ship reliable, scalable services consumed by internal and external developers. In this role, you will: Contribute to and execute on the technical strategy for the Workday Developer Portal and adjacent services, implementing platform capabilities that enable external developers and partners to build across Workday products. Lead design and implementation of key platform components-including APIs, SDKs, and agentic service integrations-with a strong emphasis on scalability, reliability, and developer experience. Collaborate closely with principal engineers, product managers, and cross-functional teams to translate platform growth goals into well-scoped, executable engineering work. Uphold API governance and engineering best practices within your team, including versioning, backward compatibility, and security standards for public-facing surfaces. Mentor junior and mid-level engineers through code review, design feedback, and pairing, and help raise the technical bar on the team. Participate in architectural discussions and contribute to build-vs-integrate decisions for platform components, with grounding in real-world tradeoffs of scale and maintainability. Support developer-facing documentation, onboarding flows, and tooling improvements that make the platform easier to adopt and extend. About You

Requirements

• 8+ years of software engineering experience, including senior‑level ownership of web or platform services in production.
• 4+ years experience designing, developing, and deploying distributed systems.
• Experience designing and building capabilities for developer platforms, developer portals, or other external‑facing surfaces used by third‑party developers or partners.
• Hands-on experience building and operating cloud‑native services (for example on GCP, AWS, or Azure), including responsibility for availability, performance, and basic observability (logging, metrics, and alerting).
• Experience working with modern web technologies and APIs (for example, TypeScript/JavaScript, React, and REST/GraphQL) in a production environment.
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Other Qualifications
• Clear understanding of developer experience (DX) as a quality bar, with the ability to apply that lens when making design and implementation decisions for platform capabilities.
• Hands-on expertise with cloud-native infrastructure and Kubernetes, including the

Additional Information

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.

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