Pieter Van der Merwe in

Pieter Van der Merwe

Observer · DISC type ci
Chief Security and Risk Officer at Optus
📍 Sydney, New South Wales, Australia

Pieter is the Chief Security and Risk Officer at Optus, with extensive experience leading security for major organizations, including a decade at Woolworths Group. He holds a Master of Science from the University of Pretoria. Colleagues describe him as trustworthy, knowledgeable, and a results-focused leader passionate about safeguarding customer data.

Outside of his direct professional duties, Pieter has a keen interest in staying informed on global business trends and current events, following publications such as the Harvard Business Review and TIME. He is also dedicated to enhancing cybersecurity collaboration across the retail and hospitality sectors.

He co-authored a publication on the security of mobile commerce over GSM networks from a banking perspective.

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Experience
25 Years
Current Role
Chief Security and Risk Officer
Job Level
Leadership
Location
Sydney, New South Wales, Australia
Personality Overview

How Pieter shows up

Example Seeker
Assertive
Value Driven

They are generally strong communicators and are not easy to convince. They often ask many questions and rely heavily on information and documentation. They can sound friendly and charming but can quickly change gears to become inquisitive and probing.

Priorities

Topics Pieter cares about

Cybersecurity Leadership
Serves as Chief Security and Risk Officer at Optus, and previously held CISO and CSO roles at Woolworths Group for over ten years.
Retail & Telco Security
Combines deep experience from leading security at Woolworths with his current role at Optus, and serves as Vice Chair for the Retail & Hospitality ISAC in the APAC region.
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Career

Work history

12-2025
Chief Security and Risk Officer
Optus
2-2025
Board Member and Vice Chair, APAC Region
Retail & Hospitality ISAC
7-2022 - 11-2025
Chief Security Officer
Woolworths Group
5-2015 - 7-2022
Chief Information Security Officer
Woolworths Group
1-2022 - 11-2025
Non Executive Director
Woolworths Team Bank
In the press

Media appearances

Optus appoints Pieter van der Merwe as Chief Security & Risk Officer. Featured in TelcoNews
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Woolworths' CSO is Optus‑bound. Featured in iTnews
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Education
2001 - 2004
Masters of Science (Electronics)
University of Pretoria
2001 - 2002
Bachelors of Science (Honours)
University of Pretoria
Social presence
in
Behavioral profile

DISC profile (public)

c

Calculativeness (C)

Calculativeness (C) reflects the degree to which a person is likely to be cautious, systematic and analytical. Those scoring high tend to emphasise quality and accuracy.

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