10 EY IT leaders
Chief Information Officer, Director IT and Director Of Engineering are among the current titles held by these EY IT leaders, who work on the firm's own infrastructure, identity, data and engineering. A reader can learn how IT leaders work at EY from people who have held the role.
Professionals to explore
Aamir Qureshi
LinkedInExperience: Associate Director Architecture, Governance, Services & Solution Engineering · EY
Aamir Qureshi has been Associate Director Architecture, Governance, Services & Solution Engineering at EY since January 2015, based in Somerset, New Jersey. Aamir Qureshi was Enterprise Solution Architect o365 at AmerisourceBergen from 2014 to 2015 and Principal Architect Technical Lead at Parsons Corporation from 2012 to 2014.
Darrick Byas
LinkedInExperience: Associate Director - Global Infrastructure Services · EY
Darrick Byas has been Associate Director - Global Infrastructure Services at EY since January 2016, based in Alpharetta, Georgia. Darrick Byas was Program Project Manager - Info Services (Infrastructure & Operations) at Axiall, a Westlake Company, from 2012 to 2016 and Program Project Mgr at Hewlett Packard Enterprise from 2002 to 2012.
Marcus Oh
LinkedInExperience: Directory Services Global Lead, Associate Director · EY
Marcus Oh has been Directory Services Global Lead, Associate Director at EY since October 2015, based in Alpharetta, Georgia. The profile describes leading a global team as the Directory Services Global Lead at EY, and this is the only role shown in the listing for Marcus Oh.
Margaret Warcholak
LinkedInExperience: Director · EY
Margaret Warcholak has been Director at EY since July 2026, with the role listed in Iselin, New Jersey, and the profile describes it as Data Solutions Service Delivery Lead within Enterprise Technology. Margaret Warcholak was Associate Director in Global IT at EY from 2014 to 2021 and Assistant Director in Global IT from 2011 to 2014.
Martin Nicolas Ausilio
LinkedInExperience: Director Of Engineering · EY
Martin Nicolas Ausilio has been Director Of Engineering at EY since June 2022 and Expert Technologist | Director | EY Technology since July 2025, based in the Austin, Texas metropolitan area. The profile describes leading initiatives to embed genAI in the firm's software development lifecycle for its developers, and Martin Nicolas Ausilio was Associate Director - Global Lead Cloud Engineering (FSO & Advisory) at EY from 2017 to 2022.
Matt Youngblood
LinkedInExperience: Director - Global Lead - IAM and PKI Engineering · EY
Matt Youngblood has been Director - Global Lead - IAM and PKI Engineering at EY since July 2024, based in St Augustine, Florida, and was Associate Director - Global Lead - IAM and PKI Engineering at EY from 2017 to 2024. Matt Youngblood was VP; Tech Manager at Bank of America from 2007 to 2017.
Nancy Little
LinkedInExperience: Director IT · EY
Nancy Little is currently Director IT at EY, based in Atlanta, Georgia, and the profile headline reads Director IT at Ernst & Young. The profile does not give a start date for the role and lists it at Director level in the Engineering and Technical department.
Steven McComis
LinkedInExperience: Associate Director, Global Infrastructure & Application Technology Leader · EY
Steven McComis has been Associate Director, Global Infrastructure & Application Technology Leader at EY since August 2013, based in Dawsonville, Georgia. The profile describes a global delivery and technology transformation executive directing multinational infrastructure, hybrid-cloud and application operations.
Susan Fitzsimons
LinkedInExperience: Associate Director, Infrastructure Support · EY
Susan Fitzsimons has been Associate Director, Infrastructure Support at EY since September 2014, based in Verona, New Jersey, a role the source tags at Director level in the Engineering and Technical department. Susan Fitzsimons was Assistant Director, Regional Operations Manager at EY from 2006 to 2009 and Program Manager, Ernst & Young Enterprise Portal from 1997 to 2006.
Timothy Monson
LinkedInExperience: Chief Information Officer · EY
Timothy Monson has been Chief Information Officer at EY since January 2026, based in the Denver metropolitan area, and was Deputy Chief Information Officer at EY from April to December 2025. Timothy Monson was Principal/Partner - Global Leader - Finance Information Technology at EY from 2017 to 2025 and Global Leader, Service Portfolio Managment from 2015 to 2017.
Choose the right perspective
Match the person's area, such as infrastructure, identity and directory services, architecture or engineering tools, to the decision you are working through. Give more weight to people whose role at the firm is current if your question is about how things work there today.
Questions to take into the conversation
- 01How do you decide which IT work to keep in-house and which to hand to outside providers?
- 02What does a typical week look like for an IT leader at a professional services firm?
- 03What would you tell a peer to watch for when rolling out a new platform to internal users?
Reaching EY IT leaders
How can I contact one of these EY IT leaders?
Pick one of the 10 people on this page and choose "Book a paid call", or describe your project to find others. You offer a fee for a 15-minute call or a written answer, Instant Expert finds the person's work email and sends the invitation, and they decide whether to accept. The list covers 1 company: EY, based on profile data retrieved on October 26, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach EY IT leaders?
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What if they don't reply?
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Can an AI agent ask one of these EY IT leaders a question?
Yes. An agent with a USDC wallet on Base can ask one question without an Instant Expert account. It names the person, for example by the LinkedIn URL on this page, and pays per ask over x402 (HTTP 402). The person answers in writing or by voice note, and if nobody answers within 7 days, the payment goes back to the wallet automatically. Claude and ChatGPT can do the same through the Instant Expert connector: setup is at /docs/mcp for Claude and /docs/chatgpt for ChatGPT. x402 docs
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.