10 HF Sinclair engineering leaders
Kane Hittle, VP, Manufacturing Asset Reliability & Investment at HF Sinclair, is one of ten HF Sinclair engineering leaders listed here, alongside directors of engineering, process engineering, asset reliability and refinery and midstream integrity. A reader can learn how engineering leaders work at HF Sinclair from people who have held the role.
Professionals to explore
Ajay Seth, PE
LinkedInExperience: VP Capital Projects Delivery · HF Sinclair
Ajay Seth, PE was VP Capital Projects Delivery at HF Sinclair from 2016 to 2024, a role that has ended, based in the Dallas-Fort Worth Metroplex, and describes responsibility for development, engineering, construction and delivery of a renewable energy complex. Ajay Seth, PE has since listed Capital Project Delivery work as self-employed in 2024 and 2025.
Aseer Shamsaddin
LinkedInExperience: Director Process Engineering & Technology · HF Sinclair
Aseer Shamsaddin has been Director Process Engineering & Technology at HF Sinclair since May 2026. Aseer Shamsaddin was Env, PSM, H&S, and PQ Manager at HF Sinclair from 2023 to 2026, Technical Services Manager there from 2020 to 2023, Operations Superintendent from 2019 to 2020 and Supervisor Process engineering from 2017 to 2019.
Bahaa Amer
LinkedInExperience: Director of Engineering · HF Sinclair
Bahaa Amer has been Director of Engineering at HF Sinclair since January 2026, based in Burlington, Ontario, Canada, with the profile headline Engineering Director at Petro-Canada Lubricants. Bahaa Amer was Operations Turnaround Manager at HF Sinclair from 2024 to 2026, Operations Manager there from 2021 to 2024 and Manager - Engineering Technical Services from 2017 to 2021.
Bill Romine
LinkedInExperience: Director Asset Integrity - Midstream · HF Sinclair
Bill Romine has been Director Asset Integrity - Midstream at HF Sinclair since September 2026, based in Artesia, New Mexico, and also lists Director Maintenance Excellence there since 2023. Bill Romine was Sr Manager, Turnaround and Capital Projects at HF Sinclair from 2022 to 2023, Sr Manager, Operations and Maintenance there from 2020 to 2022 and Operations Manager from 2016 to 2020.
Edmund Winston
LinkedInExperience: Director Refinery Integrity · HollyFrontier
Edmund Winston has been Director Refinery Integrity at HollyFrontier since March 2015, and describes a corporate director role responsible for mechanical integrity, maintenance, turnarounds, rotating equipment, controls, energy management and electrical reliability. Edmund Winston was VP Production Excellence at Tesoro Corporation from 2011 to 2015 and Production Manager at Shell from 2006 to 2011.
John Latimer
LinkedInExperience: Director - Process Engineering And Technology · HFSinclair
John Latimer has been Director - Process Engineering And Technology at HF Sinclair since November 2022, based in Anacortes, Washington, and also lists Process Engineering Manager at HF Sinclair since 2021. John Latimer was Manager - Process Engineer at Shell from 2019 to 2021, Business Manager there from 2016 to 2018 and OP/Tech Supervisor - Projects from 2006 to 2016.
Kane Hittle
LinkedInExperience: VP, Manufacturing Asset Reliability & Investment · HF Sinclair
Kane Hittle has been VP, Manufacturing Asset Reliability & Investment at HF Sinclair since March 2022, based in the Dallas-Fort Worth Metroplex. Kane Hittle was VP Capital Projects at HollyFrontier from 2017 to 2022, Project Manager there from 2012 to 2017, and Project Engineering Supervisor and Project Engineer at Frontier Oil from 2001 to 2011.
Ken Jinkerson
LinkedInExperience: Vice President, Process Engineering & Design · HollyFrontier
Ken Jinkerson was Vice President, Process Engineering & Design at HollyFrontier from 2015 to 2020, a role that has ended, and the profile now lists Passionately Retired, based in Dallas, Texas. Ken Jinkerson was Refinery Manager at Murphy Oil Corporation from 2010 to 2014, Refinery Manager at Western Refining from 2003 to 2010 and Dept General Director of Refining at Mazeikiu Nafta from 1999 to 2003.
Mark Williams
LinkedInExperience: VP, Projects - Tulsa · HollyFrontier
Mark Williams was VP, Projects - Tulsa at HollyFrontier from June 2009 to June 2020, a role that has ended, and describes being responsible for all capital projects at the Tulsa Refinery. Mark Williams was Manager, Projects at CVR Energy, Inc. from 2020 to 2024, responsible for engineering and construction of capital spend at the Coffeyville Refinery, and the profile now lists Retired.
Ross Shaeffer
LinkedInExperience: Director, Asset Reliability · HollyFrontier
Ross Shaeffer has been Director, Asset Reliability at HollyFrontier since May 2022, based in San Antonio, Texas, with the profile headline Director, Asset Reliability at HF Sinclair. Ross Shaeffer was Sr. Manager, Fixed Equipment Reliabilty at HollyFrontier in 2022, Senior Manager, Fixed Equipment Mechanical Integrity there from 2021 to 2022 and Corporate Risk Manager at Marathon Petroleum Corporation from 2018 to 2020.
Choose the right perspective
Match the person's engineering area, whether process engineering, reliability and mechanical integrity or capital projects, 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 engineering role at HF Sinclair?
- 02How do you decide which reliability and integrity investments to fund across several refineries?
- 03What have you learned about running process engineering and technology support at a refinery site?
Reaching HF Sinclair engineering leaders
How can I contact one of these HF Sinclair engineering 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 3 companies: HF Sinclair, HollyFrontier and HFSinclair, 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 engineering leaders?
You choose the offer, starting at $5 per person. The offer is what the person receives, and Instant Expert's fee is added on top, so a $100 offer costs you $125. The fee is 20% of what you pay. You're charged only when the person books the call or sends the answer.
What if they don't reply?
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Can an AI agent ask one of these HF Sinclair engineering 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.
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