Senior Information Security Specialist
Location: London or Bristol – Hybrid model (3 days work from home)
Mitie’s Information Security team safeguards critical client data across high‑profile sectors including Central Government and the Ministry of Defence. We are looking for a seasoned professional to drive forward our cyber resilience strategy.
Your Impact
As a senior member of the team, you will lead the governance of our outsourced IT Security Operations and Cyber Security Operations Centre, optimise security tooling, manage risk and compliance, and respond to incidents with precision and authority.
Key Responsibilities
* Oversee daily operations of security services, acting as the primary contact for security enquiries and authorising changes
* Manage threat intelligence feeds and develop new sources in collaboration with suppliers
* Lead incident response, conduct audits, and promote a security‑aware culture across the organisation
* Design and maintain security controls aligned with ISO 27001 standards
* Conduct third‑party risk assessments to ensure vendor compliance
* Use KQL (Kusto Query Language) to analyse security data in Azure Sentinel or similar platforms
* Build Azure Workbooks to visualise and monitor security metrics
* Automate workflows using Azure Logic Apps for incident response and process efficiency
* Perform vulnerability management using Tenable or equivalent tools
* Collaborate with cross‑functional teams to embed security best practices into operations
* Stay ahead of emerging threats, technologies, and industry trends to strengthen defences
What We’re Looking For
* Proven experience in a senior information security role within an enterprise‑scale organisation
* Hands‑on expertise with cloud security tools across Microsoft Azure, AWS and Google Cloud
* Familiarity with Microsoft 365 and CAFM platforms
* CISSP or equivalent certification
* SC clearance (or ability to obtain)
* Strong stakeholder engagement and communication skills
* Demonstrated ability to lead incident response and security audits
* Deep understanding of security policies, standards and frameworks
Why Mitie?
At Mitie, you’ll be part of a team that protects some of the UK’s most vital infrastructure. We offer a competitive package, a collaborative environment, and a wide range of flexible benefits.
* Virtual GP and financial well‑being assistance
* Flexible lifestyle benefits platform (extra holiday days, insurance, technology purchases)
* High‑street discounts through MiDeals, cycle‑to‑work scheme and family coverage
* Enhanced pension contributions, salary finance and Mitie Matching Share Plan
* Recognition through Mitie Stars with cash prizes and a chance to win up to £10,000
Ready to lead the charge in cyber defence? Apply now and help shape the future of secure operations at Mitie.
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