Guillaume Lemieux in

Guillaume Lemieux

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Director of Engineering at 5C
📍 Montreal, Quebec, Canada

Guillaume Lemieux is the Director of Engineering at 5C, bringing over 10 years of experience in process engineering and industrial water management. His career includes key roles at Amazon Web Services, where he managed data center engineering operations. He holds a Baccalauréat from Polytechnique Montréal and is skilled in both on-field and management processes.

His career path shows a unique transition from industrial environmental services and HVAC project engineering to leading critical data center facility operations for major technology companies.

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Experience
9 Years
Current Role
Director of Engineering
Job Level
Mid-senior
Location
Montreal, Quebec, Canada
Personality Overview

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Communication Style
Decision Approach
Work Preference

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Priorities

Topics Guillaume cares about

Data Center Operations
His career progression at Amazon Web Services and current role as Director of Engineering at 5C centers on managing critical data center facilities and engineering operations.
Process Engineering
With a decade of experience and a strong educational background, he has hands-on knowledge of process engineering, supported by field, lab, and management experience.
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Career

Work history

12-2025
Director of Engineering
5C
5-2025 - 12-2025
Data Center Engineering Operations Chief Engineer
Amazon Web Services (AWS)
10-2022 - 7-2025
Facilities Manager
Amazon Web Services (AWS)
4-2021 - 10-2022
Data Center Engineering Operations Chief Engineer
Amazon Web Services (AWS)
7-2020 - 4-2021
HVAC Project Engineer
Magnus Chemicals Ltd
In the press

Media appearances

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Education
2005 - 2009
Baccalauréat
Polytechnique Montréal
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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