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Head of it - security

Slough
Siena Partnership
Security
Posted: 20 March
Offer description

We're looking for a hands-on Head of IT to lead and evolve our internal technology, infrastructure and cyber security capability.

* Hybrid Working - London
* £110,000 - £140,000
* F/S, Private Equity, Investment Management

This is a leadership role with real breadth. You'll manage a small team of three/four, take ownership of our Microsoft environment, oversee cyber security and infrastructure performance, and make sure our technology estate is secure, reliable and fit for a high-performing international business.

You'll be joining at an exciting point: our cloud migration is complete, so the focus is now on continuous improvement, resilience, security and smarter use of technology, not wholesale redesign.

What you'll be doing

* Leading and developing a team of 3 across support, applications and infrastructure
* Owning day-to-day IT operations across a c.200-user UK/US business
* Managing and improving our Microsoft estate, with a particular focus on Intune and Defender
* Overseeing cyber security, infrastructure monitoring, patching, access controls, backup and recovery
* Driving continuous improvement across the IT environment
* Working closely with the Head of Compliance to support regulatory and security requirements
* Managing third-party vendors, contracts and service reviews
* Monitoring the use of emerging AI tools such as ChatGPT and Copilot
* Supporting the business with a practical, service-led and enterprise-minded approach

What we're looking for

* Previous experience leading internal IT infrastructure and support in a hands-on environment
* Strong Microsoft ecosystem expertise, especially Intune, Defender, Microsoft 365 and cloud infrastructure
* Strong understanding of cyber security, operational resilience and IT governance
* Experience managing vendors and external technology partners
* Ability to balance strategic thinking with day-to-day delivery
* Confident stakeholder manager who can work across technology, compliance and the wider business
* Someone who enjoys being visible, approachable and engaged with users in the office

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