James Costello in

James Costello

Doer · DISC type sd
Chief Information Security Officer at Sizewell C
📍 United Kingdom

Professional overview including current role context, leadership scope, domain focus, and career trajectory to help you understand background relevance before outreach.

Key behavioral and communication insights including interaction style, decision-making tendencies, and motivation drivers to tailor messaging and personalize conversations.

Business priorities, areas of interest, and practical outreach recommendations that can improve conversion quality for this professional.

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Experience
26 Years
Current Role
Chief Information Security Officer
Job Level
Leadership
Location
United Kingdom
Personality Overview

How James shows up

Risk-Accepting
Results Focused
Fast-paced

Reading between the lines and seeing beyond your words comes naturally to them. They exhibit a rare combination of being result-oriented but patient at the same time. They are very professional in their approach and can weigh multiple perspectives together.

Priorities

Topics James cares about

Strategic Priorities
Topic insights and context to help personalize outreach and discovery conversations.
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Career

Work history

9-2025
Chief Information Security Officer
Sizewell C
4-2024 - 10-2025
Business Information Security Officer (BISO), acting CISO
Sizewell C
12-2022 - 3-2024
Cyber Security Manager
Sizewell C
6-2020 - 12-2022
Security Architect - SZC
EDF (UK)
10-2019 - 5-2020
Security Architect
EDF (UK)
In the press

Media appearances

Media appearances and press coverage highlighting public visibility and thought leadership.
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Education
1998 - 2002
BA(hons)
University of the West of England
Social presence
in
Behavioral profile

DISC profile (public)

s

Steadiness (S)

Steadiness (S) reflects the degree to which a person is likely to focus on cooperation, support and taking everyone along. Those scoring high tend to be consistent and calm.

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