Software Engineer - Agentic AI & API Platform

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 You’ll join a Product Engineering team focused on building agent‑ready APIs that power Workday’s next generation of intelligent experiences. We partner closely with internal teams to design and deliver APIs that are secure, observable, and easy to integrate with. We value innovation, teamwork, ownership, and learning from mistakes as we continuously improve the way we design, deliver, and operate APIs across Workday. About the Role As a Software Development Engineer in Product Engineering, you will help build and maintain the APIs and backend services that sit on the critical path for Workday products and agentic experiences. You will work with technologies such as TypeScript/Python and Workday frameworks to develop scalable, resilient distributed systems and great internal developer experiences. Your work will directly impact how quickly Workday can build, deploy, and iterate on agent‑driven capabilities for customers. What you’ll do Design, develop, and maintain product APIs and backend services. Implement robust API behaviors including routing, validation, authentication/authorization, transformation, and error handling. Contribute to high‑throughput, low‑latency components and integrations, focusing on resiliency, scalability, and fault tolerance. Apply API contract and governance practices using OpenAPI/Swagger and internal standards. Build and improve frameworks and tooling used by Product Engineering teams to define, publish, and maintain APIs (REST, SOAP, Graph, etc.). Use observability (metrics, tracing, logging) to understand behavior in production and drive performance and reliability improvements. Write clean, well‑documented, and testable code; contribute unit, integration, and contract tests. Participate in design and code reviews; share knowledge through documentation, talks, and mentoring. Own small to medium services or API areas end‑to‑end — from design and implementation through rollout, monitoring, and support. Collaborate with partners in other Workday code service and agent development teams. About You Basic Qualifications 5+ years of experience in software engineering building scalable backend services or platforms. 3+ years of experience with TypeScript or Python or similar languages. 2+ years of experience with web service/API technologies such as REST, SOAP, JSON, XML Schema, WSDL, GraphQL, etc. Other Qualifications Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience. Demonstrated proficiency with modern AI‑assisted development tools (e.g., Cursor, Claude Code, GitHub Copilot) to accelerate high‑quality software delivery. Solid algorithmic thinking (e.g., hash maps, trees, graph traversal, caching strategies) applied to routing, query planning, or data transformation. Familiarity with distributed systems concepts: concurrency/multithreading, horizontal scaling, high availability, and fault tolerance. Understanding of typical API gateway responsibilities: routing, validation, authentication, throttling/rate limiting, transformation, and security policies. Experience with API specifications and lifecycle (OpenAPI/Swagger, versioning, documentation). Good understanding of testing methodologies (unit, integration, contract, performance) and tools such as JUnit, ScalaTest, Postman, Mockito, and coverage tools. Experience with source control and modern dev tooling (Git/GitHub, Gradle, CI, debugging, profiling). Exposure to cloud‑based development (e.g., AWS, Kubernetes) is a plus. Familiarity with MCP or similar integration models is a plus. Strong communication skills and a collaborative mindset; comfortable working with teams across time zones. Curiosity about agentic AI and interest in building APIs that power AI‑driven workflows. Workday Pay Transparency Statement (For EU Locations Only) Listed below is the base salary range applicable to this position. Workday pay ranges (and the precise pay offered to the successful candidate) are based on a number of objective criteria such as relevant experience and skills, and educational qualifications, level of responsibility, demands of the role, work location and business need. As a part of the total compensation package, this role may be eligible for the Workday Bonus Plan or a role-specific commission/bonus, as well as annual refresh stock grants awarded by Workday Inc. For more information regarding Workday’s comprehensive benefits, please click here . Primary Location Base Pay Range: €72,000 EUR - €108,000 EUR Ireland Our Approach to Flexible Work With Flex Work, we’re combining the best of both worlds: in-person time and remote. Our approach enables our teams to deepen connections, maintain a strong community, and do their best work. We know that flexibility can take shape in many ways, so rather than a number of required days in-office each week, we simply spend at least half (50%) of our time each quarter in the office or in the field with our customers, prospects, and partners (depending on role). This means you'll have the freedom to create a flexible schedule that caters to your business, team, and personal needs, while being intentional to make the most of time spent together. Those in our remote "home office" roles also have the opportunity to come together in our offices for important moments that matter. Pursuant to applicable Fair Chance law, Workday will consider for employment qualified applicants with arrest and conviction records. Workday is an Equal Opportunity Employer including individuals with disabilities and protected veterans. At Workday, we are committed to providing an accessible and inclusive hiring experience where all candidates can fully demonstrate their skills. If you require assistance or an accommodation at any point, please email accommodations@workday.com . Are you being referred to one of our roles? If so, ask your connection at Workday about our Employee Referral process! At Workday, we value our candidates’ privacy and data security. Workday will never ask candidates to apply to jobs through websites that are not Workday Careers. Please be aware of sites that may ask for you to input your data in connection with a job posting that appears to be from Workday but is not. In addition, Workday will never ask candidates to pay a recruiting fee, or pay for consulting or coaching services, in order to apply for a job at Workday.