10 Workday engineering leaders
Workday engineering in this group starts with CTO Gabe Monroy and Global CTO Joe Wilson, then covers five vice presidents of engineering or software development and three directors whose work spans HCM AI agents, AI engineering for Paradox and observability. All ten hold their Workday title today, so a partner building on Workday, or a team designing its own data platform, observability or AI agent engineering, can reach someone with that exact remit.
Professionals to explore
Alon Slutzky
LinkedInExperience: Director of Engineering · Workday
AI engineering at Paradox within Workday is the fit for Alon Slutzky, Director of Engineering at Workday since 2025, "Leading AI engineering for Paradox (a Workday company) in Tel Aviv, building LLM-powered products at scale". Slutzky was VP Engineering at Paradox (2021–2025) and Co-Founder & CTO at Spetz (Acquired by Paradox) (2017–2021).
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Bill Scott
LinkedInExperience: VP of Engineering · Workday
VP of Engineering at Workday since 2022, Bill Scott held the same title at Avalara (2021–2022), following Vice President, Software Engineering at Salesforce (2014–2021) and Senior Director, Software Development at Oracle (2006–2014). Scott was also Architect at Metavize (2005–2006), and can compare engineering at Workday, Avalara, Salesforce and Oracle.
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Gabe Monroy
LinkedInExperience: Chief Technology Officer · Workday
Chief Technology Officer at Workday since 2026, Gabe Monroy describes the role as "focused on evolving Workday's technology stack to be more open, extensible, and AI-native" and was SVP GM Platform there (2025–2026). Monroy's Google titles were VP GM Cloud Runtimes (2025), VP PM Application Ecosystem & VP GM Cloud Runtimes (2024–2025) and VP of Developer Experience (2023–2024).
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Joe Wilson
LinkedInExperience: Global CTO · Workday
Joe Wilson's Workday titles are Enterprise Architect (2013–2015), Manager, Enterprise Architects (2015–2017), Chief Technology Officer - North America (2017–2022), Chief Technology Officer - Americas (2022–2023) and Global CTO since 2023. That sequence fits questions on enterprise architecture at Workday and on how its regional and global CTO roles relate.
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Owen Sullivan
LinkedInExperience: Director Software Engineering · Workday
Observability for Workday services is what the Workday Dublin team provides, as Owen Sullivan puts it: "We provide observability for Workday services". Sullivan has been Director Software Engineering at Workday since 2022, held Senior Software Development Manager there from 2018 (no end date) and Software Development Manager (2016–2018), and was Software Development Manager - AWS CloudWatch at Amazon (2014–2016) and VP Engineering at iQuate (Now CloudSphere) (2012–2014).
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Pat Kirby
LinkedInExperience: VP of Software Engineering · Workday
Performance engineering and engineering management at Workday are the fit for Pat Kirby, VP of Software Engineering there since 2020. Kirby's Workday titles also include Sr. Director of Engineering (2017–2020), Director of Engineering (2014–2020) and Senior Performance Engineer (2010–2014), and Kirby was Consulting Engineer at EMC | Documentum (2006–2010).
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Patrick O Connor
LinkedInExperience: Vice President of Engineering · Workday
Dublin-based Patrick O Connor has been Vice President of Engineering at Workday since 2024 and gives the title on LinkedIn as VP of Engineering & Product at Workday. Workday titles also include Senior Director Of Engineering (2020–2024) and Director Of Engineering (2019–2020), and Symantec titles were Director of Engineering (2015–2019) and Senior Engineering Manager (2014–2015), a fit for questions on pairing engineering and product leadership.
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Ray Chan
LinkedInExperience: Vice President Of Software Development · Workday
Ray Chan's Workday titles are Senior Development Manager (2011–2016), Director, Software Development Engineering (2016–2019), Senior Director (2019–2020) and Vice President Of Software Development since 2020, alongside a Lecturer role at University of California, Berkeley since 2025. A fit for questions on software development management at Workday across fifteen years of titles.
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Srinivas Vippagunta
LinkedInExperience: Vice President, Software Engineering · Workday
Since 2020, Srinivas Vippagunta has been Vice President, Software Engineering at Workday, "Responsible for Operational Data Platforms powering AI and Agentic workloads, Core Distributed Systems powering Workday SaaS and global Observability Engineering". Vippagunta was also Sr. Director - Cloud Platform Engineering at Symantec (2017–2020), Director of Analytics and Data Science at Dropbox (2015–2017) and Director of Engineering at OpenX (2014–2015) and Groupon (2010–2014).
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Steve Chui
LinkedInExperience: Engineering Director HCM Core Product & AI · Workday
Engineering for "AI agents and agentic products on Workday's core HCM platform" is what Steve Chui describes leading as Engineering Director HCM Core Product & AI at Workday since 2022, having joined Workday in 2011 as a hands-on engineer. Chui's other Workday titles are Senior Engineering Manager, Enterprise API Platforms (2018–2022), Senior Engineering Manager, Internal Tools & Developer Platform (2014–2018) and Senior Software Engineer (2011–2014).
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Choose the right perspective
Platform direction questions go to Gabe Monroy or Joe Wilson. For data platforms, distributed systems and observability, Srinivas Vippagunta holds that VP remit and Owen Sullivan is a director on the observability team in Workday Dublin; for AI agents in HCM or LLM products at Paradox, Steve Chui and Alon Slutzky are the directors closest to the work, while Bill Scott can compare Workday with Avalara, Salesforce and Oracle.
Questions to take into the conversation
- 01What should a partner know before building on Workday's platform, and which extension points tend to stay stable?
- 02How do you add AI agents to core HCM workflows without breaking existing customers' configurations?
- 03How are observability and core distributed systems engineering split between teams in different regions?
About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.