Senior Software Development Engineer

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 Our mission is to scale the Workday application platform and power the next wave of growth and efficiency across the ecosystem. We deliver platform improvements that directly enhance performance, system efficiency, and developer productivity for both our enterprise applications and AI agents. You will play a critical role in evolving our core architecture to ensure AI agents interact safely, securely, and seamlessly with the Workday platform. In this role, you will work with cutting-edge technologies, own mission-critical projects, and help drive the future of our technical architecture. About the Role As a Senior Engineer in our Platform Engineering organization, you will lead the architecture, design, and implementation of complex enterprise systems. You will serve as a technical anchor—balancing hands-on engineering with technical leadership, cross-functional collaboration, and team mentorship. Key Responsibilities • Architecture & System Design: Design and build scalable, high-performance software components that embed cleanly into larger frameworks. Gather requirements and define overall system architecture to ensure optimal user experience and system reliability. • Technical Leadership & Strategy: Partner with engineering management and product managers to clarify requirements, set technical direction, and prioritize development efforts. • Execution & Delivery: Support release planning by assessing effort, risks, and priorities. Collaborate with peers on technical designs, task estimation, and feature execution in a fast-paced Agile environment. • Quality & Engineering Excellence: Perform thorough peer code reviews, champion continuous integration/testing practices, and maintain reliable task and bug management within every sprint. • Innovation & Research: Stay current with emerging technologies, tools, and industry trends. Propose and execute prototype/proof-of-concept projects to solve complex platform challenges. • Mentorship & Advocacy: Actively mentor junior and mid-level developers to grow their technical expertise. Serve as an advocate for platform technologies by communicating new capabilities across cross-functional teams. About You Basic Qualifications • 8+ years of professional experience in Object-Oriented Design and Programming (OOD/OOP). • Fluency in Java and strong proficiency in applying core design patterns and architecture paradigms. • Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). Preferred Qualifications & Attributes • Architecture & Design: Demonstrated experi