Technical Information Security Officer (TISO)

About the organisation

We are partnering with a large, truly global organisation operating across multiple continents, regions, and operating companies. The business runs a highly complex international technology landscape and is currently in the midst of a significant transformation programme – modernising platforms, strengthening cyber resilience, and raising technical security standards across the group.

This is a pivotal moment to join the organisation. There is strong executive sponsorship, real investment, and a clear mandate to improve how security operates in practice across a diverse, multinational environment. The scale, complexity, and ambition of the transformation make this a rare opportunity for a senior, technically credible security leader to have visible, enterprise-level impact.

About the role

This is a senior, technically focused information security leadership role – the Technical

Information Security Officer (TISO).

The role exists to own and drive the effectiveness of technical security controls across a large, global IT environment, providing strong and independent technical oversight across internal teams and external suppliers.

The TISO acts as a technical authority – reviewing and challenging security designs, improving delivery quality, and ensuring controls are implemented effectively and consistently in practice. A core focus is strengthening cyber readiness and incident response capability, particularly in environments where security delivery is supported by large system integrators and managed service providers.

This is not a governance-only role. It is a hands-on, technically credible position for someone who enjoys operating at scale, influencing without formal authority, and raising standards in a complex, global organisation.

Key responsibilities

• Own and drive the effectiveness of technical security controls across a complex, global IT landscape
• Act as the technical authority on security design and implementation, reviewing and challenging solutions across internal teams and external suppliers (rather than engineering directly)
• Provide strong technical oversight across core security domains including identity, endpoint, monitoring, network, and cloud security
• Lead and coordinate cyber incident readiness and response, ensuring lessons learned translate into tangible improvements in controls and resilience
• Challenge and steer strategic suppliers (e.g. system integrators, MSSPs) to improve delivery quality, outcomes, and accountability
• Influence and align senior business and technology stakeholders in a highly matrixed, multinational environment

Experience required

• Proven experience in a senior technical information security role, operating close to infrastructure, platforms, and controls rather than purely governance or policy
• Strong background in Microsoft-centric environments, with the ability to review and challenge security design decisions across Microsoft 365 and Azure
• Demonstrated experience working with and challenging external suppliers (e.g. system integrators, MSSPs), particularly in complex, global environments
• Broad and credible technical understanding across:
• Identity and access management (e.g. Entra ID, Conditional Access, MFA, PAM concepts)
• Endpoint security and EDR
• Monitoring, SIEM/SOAR, and detection use cases
• Vulnerability management and remediation prioritisation
• Cloud and network security fundamentals (vendor-agnostic)
• Hands-on exposure to real-world incident response, ideally having supported or led major incidents such as ransomware
• Comfortable operating at senior level, influencing without mandate, and bridging highly technical and non-technical stakeholders
• Pragmatic, delivery-focused mindset with the ability to translate technical risk into clear, actionable decisions

This role is not suited to candidates who are primarily:

• Governance, risk, audit, or compliance-led without strong technical foundations
• Pure incident responders without broad ownership of security controls and platforms
• Career consultants who have not owned outcomes on the enterprise or client side

Remuneration & working model

• Attractive total compensation, including bonus, strong pension, and benefits
• Working model: Hybrid – 3 days office / 2 days home
• Location: Randstad area, The Netherlands
• Language: English required; Dutch beneficial

Why this opportunity

This role offers the chance to operate as a true technical authority in a global organisation, with the backing to challenge, improve, and raise security standards at scale. It suits someone who values technical credibility, enjoys complexity, and wants to make a visible, enterprise-level impact rather than operate in a narrow or purely governance-led remit.

Interested?

If you’re a senior technical security professional looking for a role with genuine scope, influence, and responsibility in a complex global environment, we’d welcome a confidential conversation.

Please apply directly via LinkedIn, or contact Jack Grimes at WestPoint Search:

[email protected]

This role is exclusively supported by WestPoint Search on behalf of our client.