Tamsin Harrison (nee Petty) in

Tamsin Harrison (nee Petty)

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Head of Engineering at Sainsbury's
📍 Milton Keynes, England, United Kingdom

A dedicated and highly motivated senior IT leader with over 20 years of experience, Tamsin is the Head of Engineering at Sainsbury’s. She has a proven track record of delivering large, complex IT transformations and holds an MSc from The Open University.

Outside of her direct professional duties, Tamsin is interested in leadership psychology and effective communication, having shared content related to the ENTJ personality type. She is described as positive, proactive, and pragmatic, thriving in high-pressure environments and driven by challenges.

She is ultimately optimistic and driven by the knowledge that theres a way through any challenge, however big.

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Experience
19 Years
Current Role
Head of Engineering
Job Level
Mid-senior
Location
Milton Keynes, England, United Kingdom
Personality Overview

How Tamsin shows up

Communication Style
Decision Approach
Work Preference

Behavioral traits and communication patterns that shape how this person evaluates opportunities, builds trust, and makes decisions in professional settings.

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Priorities

Topics Tamsin cares about

Digital Transformation
As a consultant for The Open University, she led its digital evolution by applying new digital ways of working that bring together people, process, and technology.
Agile Leadership
At TUI, she led a department of over 140 permanent professionals and 500 offshore developers, with a focus on maturing the organization's Agile competencies.
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Career

Work history

7-2023
Head of Engineering
Sainsbury's
7-2019 - 7-2023
IT Strategy & Transformation Consultant
The Open University
1-2017 - 6-2019
Deputy Director of Engineering
TUI
6-2016 - 12-2016
Programme Director
The Open University
7-2015 - 6-2016
Director of Engineering
The Open University
In the press

Media appearances

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Education
2007 - 2010
MSc
The Open University
2004 - 2007
Postgraduate Diploma
The Open University
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

Dominance, influence, steadiness, and calculativeness scores with guidance on how this person prefers to communicate and decide.

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