Heather Gilligan in

Heather Gilligan

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Senior Advisor: Operational Excellence & AI Innovation at Pyxis Group
📍 Houston, Texas, United States

Heather is a senior technical leader with over 25 years of experience in the global refining and petrochemical industries, specializing in AI-driven operational excellence and hydroprocessing. An alumna of Vanderbilt University with a degree in Chemical Engineering, she leverages her deep expertise to optimize refinery operations. Colleagues describe her as an exceptional professional and an outstanding engineering leader.

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Experience
27 Years
Current Role
Senior Advisor: Operational Excellence & AI Innovation
Job Level
Senior
Location
Houston, Texas, United States
Personality Overview

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Communication Style
Decision Approach
Work Preference

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Priorities

Topics Heather cares about

AI in Manufacturing
Her work and recent posts focus on driving industrial AI adoption, lamenting its low adoption rates in manufacturing, and identifying high-impact applications for refineries.
Refinery Optimization
This is her core expertise, with a career focused on hydroprocessing, catalyst performance, and using AI to enhance efficiency and achieve margin improvements in refinery operations.
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Career

Work history

8-2025
Senior Advisor: Operational Excellence & AI Innovation
Pyxis Group
2-2025
Principal Consultant
H Gilligan Consulting
1-2023 - 1-2025
Principal Hydroprocessing Engineer
Imubit
7-2019 - 1-2023
Linear Alpha Olefins Principal Engineer
ExxonMobil
5-2018 - 7-2019
Global Fluids Process Technology Manager
ExxonMobil
In the press

Media appearances

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Education
Bachelor of Engineering
Vanderbilt University
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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