IT Systems Manager

  • Allan Webb
  • 25/07/2026
Full time Information Technology Telecommunications IT Support

Job Description

Location: Hybrid, attendance at our Stonehouse (Gloucestershire) required on weekly basis

The Role:

We are seeking an experienced IT Systems Manager to lead the operational integrity, security, and continual improvement of our IT systems and services. Reporting to the IT & CSEC Director, you'll provide technical and people leadership to our IT team, set the strategic direction for IT service delivery, and ensure alignment with business objectives, defence sector expectations, and regulatory requirements.

You'll be accountable for the day-to-day operation of IT systems and services, the competence and performance of the IT team, and the effective implementation of ISO/IEC 20000-1, ISO/IEC 27001, and Cyber Essentials Plus controls.

Key Responsibilities

  • Overall responsibility for the availability, performance, and security of IT systems and services
  • Leadership and line management of IT Support staff, including Service Desk and Network & Security roles
  • Ownership of IT operational processes (incident, request, change, problem, and asset management)
  • Define and maintain the IT strategy and roadmap aligned with business and defence requirements
  • Ensure IT services meet agreed service levels and business requirements
  • Implement and maintain security controls in line with ISO/IEC 27001 and Cyber Essentials Plus
  • Oversee supplier performance and third party service delivery
  • Chair or contribute to Change Advisory Board (CAB) as required
  • Conduct performance reviews and support professional development of team members

The Ideal Candidate will have

  • Strong experience managing enterprise IT systems and services
  • Demonstrable leadership and people management experience
  • Strong understanding of IT service management principles (ITIL)
  • Working knowledge of Microsoft 365, infrastructure, networking, and security platforms
  • Experience operating within ISO/IEC 20000-1 and ISO/IEC 27001 environments
  • Experience supporting Cyber Essentials Plus assessments
  • Strong stakeholder management and communication skills

Highly Desirable:

  • ITIL 4 Managing Professional or equivalent
  • ISO/IEC 20000-1 or ISO/IEC 27001 Lead Implementer/Auditor certification

Successful applicants will be required to be security cleared prior to appointment.

About Us

At Allan Webb, we're more than just a leading engineering consultancy - we are a team of over 300 specialists dedicated to making a real difference. With over 60 years of experience, we provide asset optimisation services to defence, government, energy, pharmaceuticals, and aerospace sectors, both in the UK and internationally. Our work aims to deliver a safe and sustainable world by turning complex asset management challenges into streamlined, cost-effective solutions.

We believe in the power of people. That is why we champion agile working, giving you the flexibility to choose your hours and how you work. We foster an inclusive culture where different perspectives spark innovation and excellence. As signatories of the Armed Forces Covenant, we support service personnel, veterans, and their families, and we remain closely connected to our local communities.

What We Offer

  • Competitive salary package
  • Agile working arrangements
  • Structured career development pathway
  • Investment in professional qualifications and training
  • Mentoring and coaching programmes
  • Opportunity to work on high-profile projects
  • Inclusive and supportive work environment
  • Active EDI networks and initiatives

Allan Webb is an equal opportunities employer, proudly supporting the Armed Forces Covenant, and welcomes applications from all suitably qualified individuals, including service leavers.