Principal, Performance and Capacity Engineer (Infrastructure & Platform)

Your work days are brighter here.

Were 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 were shaping the future of work so teams can reach their potential and focus on what matters most. The minute you join youll 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. Were 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 youre building smarter solutions supporting customers or creating a space where everyone belongs youll do meaningful work with Workmates whove got your return well 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 youve found a match in Workday and we hope to be a match for you too.

About the Team

About the Role

As a Principal Technical Architect on the Capacity Engineering team youll be a pivotal leader shaping the very foundation of Workdays scalability and reliability. Youll be responsible for designing and architecting cutting-edge frameworks for capacity engineering across Workdays core and shared services ensuring our systems can seamlessly handle the demands of our rapidly growing customer base.

This role isnt just about design; its about hands-on technical leadership and innovation. Youll delve deep into our distributed systems identifying bottlenecks defining robust capacity models and pioneering solutions that push the boundaries of performance and resilience.

Key responsibilities will include:

• Architecting Scalable Frameworks: Design and implement architectural frameworks and tooling for proactive capacity planning modeling and management for critical Workday services.
• Technical Leadership & Guidance: Provide senior technical leadership mentoring engineers and guiding the team on best practices for building scalable resilient and performant distributed systems.
• System Analysis & Optimization: Conduct in-depth analysis of system performance resource utilization and growth patterns to identify optimization opportunities and predict future capacity needs.
• Cross-Functional Collaboration: Partner closely with engineering teams product management and SREs to integrate capacity insights into the development lifecycle and influence product architecture.
• Innovation & Research: Stay ahead of industry trends and emerging technologies evaluating and recommending new approaches to continuously enhance Workdays scalability and operational efficiency.
  

This is a unique opportunity to make a profound impact on Workdays core infrastructure directly influencing the experience of millions of users and ensuring our platform remains world-class in performance and reliability.

About You

Youre an accomplished Principal Engineer or Technical Architect with extensive experience in designing building and scaling highly performant and resilient distributed systems. You thrive on tackling complex architectural challenges and possess a deep understanding of system & JVM internals performance tuning and capacity management in large-scale environments.

Basic Qualifications:

• 12 years of experience in software engineering with significant hands-on experience in system-level architecture performance resiliency and scalability for complex distributed systems.

• 5 experience in designing and implementing complex distributed system architectures evidenced by successful deployment of systems with high availability (e.g. 99.9% uptime) and fault tolerance.

• 8 years experience with at least two of the programming languages (e.g. Java Python Go) including experience in writing production-level code for distributed systems.

• Bachelors degree in a relevant field such as Computer Science Engineering or a related discipline; a Masters degree (e.g. MS in Computer Science Distributed Systems or related field) is strongly preferred or equivalent practical experience.

• Deep understanding knowledge and hands-on experience with Kubernetes in production environments including advanced concepts like custom resource definitions operators and cluster optimization.

• Expertise in distributed computing principles microservices architectures and cloud-native patterns specifically on leading public cloud platforms (AWS and GCP).

• Profound understanding of JVM internals (e.g. garbage collection memory management threading) and their impact on application performance and scalability.

• Proven ability to design and implement robust scalable technical architectures and translate broad business requirements into clear executable design specifications.

• Exceptional analytical and problem-solving skills with a track record of identifying root causes proposing innovative solutions and making data-driven architectural decisions.

• Demonstrated experience in technical leadership including mentoring senior engineers leading critical technical initiatives and influencing architectural direction within an engineering organization.

Other Qualifications:

• Excellent communication and interpersonal skills with a proven ability to articulate complex technical concepts to both technical and non-technical audiences.

• Strong collaborative spirit enjoying cross-functional teamwork driving consensus and fostering a shared understanding of technical goals.

• A continuous learning mindset staying current with industry trends emerging technologies and best practices in cloud architecture performance engineering and system design.

• Experience with capacity planning performance modeling or cost optimization frameworks in a large-scale cloud environment.

Youre passionate about building robust scalable solutions and eager to make a significant impact on a mission-critical platform. If youre looking for an opportunity to lead innovate and shape the future of enterprise cloud applications we encourage you to apply.

Our Approach to Flexible Work

With Flex Work were 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 youll 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.

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 .

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