10 HF Sinclair IT leaders
Clint Melton, Acting Chief Information Officer at HF Sinclair, is one of ten HF Sinclair IT leaders listed here, alongside chief information and security officers and vice presidents and directors of IT infrastructure, refining systems, business partnering and performance excellence. A reader can learn how IT leaders work at HF Sinclair from people who have held the role.
Professionals to explore
Ben Hudspeth
LinkedInExperience: Senior IT Director – Infrastructure and Operations · HF Sinclair
Ben Hudspeth has been Senior IT Director – Infrastructure and Operations at HF Sinclair since April 2025, based in the Dallas-Fort Worth Metroplex. Ben Hudspeth was Vice President of IT and Senior IT Director at EnLink Midstream from 2024 to 2025, Director of Cybersecurity and Infrastructure there from 2021 to 2024 and Director of IT - Corporate at ExxonMobil from 2018 to 2021.
Christopher McGuirk
LinkedInExperience: Senior Director, IT Business Partners & Delivery · HF Sinclair
Christopher McGuirk has been Senior Director, IT Business Partners & Delivery at HF Sinclair since October 2024, based in Dallas, Texas. Christopher McGuirk was Director, IT Commercial and Finance at HollyFrontier from 2021 to 2024, Senior Business Process Manager there from 2017 to 2021 and Manager, Business Process Management from 2012 to 2017.
Clint Melton
LinkedInExperience: Acting Chief Information Officer · HF Sinclair
Clint Melton has been Acting Chief Information Officer at HF Sinclair since April 2026 and also lists Vice President Internal Audit there since 2022, based in Dallas, Texas. Clint Melton was Vice President Internal Audit at HollyFrontier from 2019 to 2022 and Director Internal Audit there from 2018 to 2019.
Clinton Wilson
LinkedInExperience: Chief Information Security Officer · HF Sinclair
Clinton Wilson has been Chief Information Security Officer at HF Sinclair since October 2024, based in Dallas, Texas, and describes leading enterprise cybersecurity, technology risk and operational resilience for a refining, lubricants and marketing organization. Clinton Wilson was Director, Cybersecurity and Infrastructure at Marathon Petroleum Corporation from 2022 to 2024 and Director, Critical Infrastructure and Operational Technology - Midstream there from 2018 to 2022.
Jon Rabiega
LinkedInExperience: Vice President of Information Technology, Infrastructure and Operations · HollyFrontier
Jon Rabiega has been Vice President of Information Technology, Infrastructure and Operations at HollyFrontier since May 2018, based in Frisco, Texas, with the profile headline Vice President of Information Technology - Infrastructure, Operations & Cyber Security at HF Sinclair Corporation. Jon Rabiega was Senior Vice President at Caliber from 2017 to 2018 and Senior Director at PepsiCo from 1998 to 2017.
Jonathan Marks
LinkedInExperience: Director, IT Refining · HF Sinclair
Jonathan Marks has been Director, IT Refining at HF Sinclair since July 2026, based in Dallas, Texas, with a profile headline citing digital transformation, source to pay, reliability and asset management, and ERP and business systems. Jonathan Marks was Senior Manager, IT Maintenance, Reliability, & Procurement Business Systems at HollyFrontier from 2025 to 2026 and Manager, Procurement Systems there from 2021 to 2025.
Jose H Gonzales
LinkedInExperience: Director, IT Performance Excellence · HF Sinclair
Jose H Gonzales has been Director, IT Performance Excellence at HF Sinclair since January 2025, based in the Dallas-Fort Worth Metroplex, with a profile headline of IT Strategy, Planning and Execution. Jose H Gonzales was Chief Architect at CPS Energy in 2024 and IT Performance Excellence Director (Head of the Office of the CIO) at Marathon Petroleum Corporation from 2021 to 2023.
Joseph Fronzaglio
LinkedInExperience: Chief Information Officer · HF Sinclair
Joseph Fronzaglio was Chief Information Officer at HF Sinclair from 2022 to 2024 and Vice President Information Technology there in 2024, a role that has ended, and the profile now lists Retired. Joseph Fronzaglio was Manager, Internal Audit Services at KPMG from 2004 to 2006 and describes combined experience across information technology, cybersecurity, internal audit and finance.
Matthew Elam
LinkedInExperience: Sr. Director, IT - Infrastructure and Security (CTO and Interim CISO) · HF Sinclair
Matthew Elam has been Sr. Director, IT - Infrastructure and Security (CTO and Interim CISO) at HF Sinclair since January 2024, based in the Atlanta Metropolitan Area. Matthew Elam was Director, IT Refining Operations and Applications at HF Sinclair from 2020 to 2024 and Sr. Business Partner IT - Enterprise Asset Management there from 2018 to 2020, and describes building secure technology organizations in multi-site environments.
Ramon Grimaldo Jr.
LinkedInExperience: Vice President & Chief Information Officer · HF Sinclair
Ramon Grimaldo Jr. lists Vice President & Chief Information Officer at HF Sinclair since June 2024, based in San Antonio, Texas, with a profile headline citing emerging technologies, cybersecurity and leading high performing teams. Ramon Grimaldo Jr. was Head of Infrastructure & Enterprise Technology Services at Marathon Petroleum Corporation from 2018 to 2024 and Sr Director, IT Mergers & Acquisitions at Andeavor in 2018.
Choose the right perspective
Match the person's IT area, whether enterprise leadership, infrastructure and operations, cybersecurity, refining systems or business partnering, to the decision you face. Check whether each role is current or has ended to judge how recent the person's view of it is.
Questions to take into the conversation
- 01What did you focus on first when you took on your IT role at HF Sinclair?
- 02How do you balance plant floor technology needs at refineries with corporate IT standards?
- 03What have you learned about securing operational technology at refining and midstream sites?
Reaching HF Sinclair IT leaders
How can I contact one of these HF Sinclair 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 2 companies: HF Sinclair and HollyFrontier, based on profile data retrieved on October 24, 2026. Being listed here doesn't mean someone has agreed to take calls.
How much does it cost to reach HF Sinclair IT leaders?
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Can an AI agent ask one of these HF Sinclair IT leaders a question?
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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.
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