Alex Ionescu in

Alex Ionescu

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Chief Technology Innovation Officer at CrowdStrike
📍 Montreal, Quebec, Canada

Alex Ionescu is the Chief Technology Innovation Officer at CrowdStrike, a world-renowned cybersecurity expert, and co-author of the seminal "Windows Internals" series. A University of California, Berkeley alumnus, his career includes foundational roles at CrowdStrike, kernel development at Apple for iOS, and work with the Canadian governments public sector cybersecurity.

Outside of technology, Alex is a significant philanthropist in Montreal, his adopted city. Through the OVI Fund - Ionescu Family Foundation, he and his wife have made multi-million dollar donations to cultural institutions like the Orchestre Métropolitain and the Montreal Museum of Fine Arts to make arts more accessible.

He began programming at age six and developed a passion for operating system design after a catastrophic hard-drive failure.

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Experience
25 Years
Current Role
Chief Technology Innovation Officer
Job Level
Leadership
Location
Montreal, Quebec, Canada
Personality Overview

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Priorities

Topics Alex cares about

Windows Internals
He is the co-author of the last three editions of the definitive "Windows Internals" book series, establishing him as a top expert in the field.
Kernel-Level Security
His expertise is in low-level systems, from Windows kernel development and reverse engineering to working on Apple's iOS kernel for the original iPhone and iPad.
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Career

Work history

4-2025
Chief Technology Innovation Officer
CrowdStrike
10-2022
Advisory Board Member
Securily
9-2022
Advisory Board Member
NetRise Inc.
3-2022 - 9-2024
Advisory Board Member
Cyberhaven
1-2022 - 3-2025
Technical Director, Platform Operations and Research
Communications Security Establishment | Centre de la sécurité des télécommunications
In the press

Media appearances

CrowdStrike Appoints Alex Ionescu as Chief Technology Innovation Officer. Featured in Business Wire
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CrowdStrike Appoints Alex Ionescu as Chief Technology Innovation Officer. Featured in CrowdStrike (official press release)
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Education
1-2022 - 1-2024
Master's degree
University of California, Berkeley
2006 - 2011
Bachelor's degree
Concordia University
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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