Group IT Systems & Infrastructure Manager

Group IT Systems and Infrastructure Manager - Hybrid (UK-wide travel) Location: Hybrid, with travel across UK office locations Function: ICT Infrastructure & Security Assurance Reports to: Group CIO Clearance: Must be eligible for BPSS and SC Clearance Are you ready to shape the IT backbone of a rapidly growing, transformation-focused organisation? We're looking for an experienced Group IT Systems and Infrastructure Manager to lead the development, integration, and operational management of enterprise-wide IT systems during a time of significant expansion and change. About the Organisation This fast-scaling, private equity-backed group delivers secure, critical network and ICT managed services to UK Critical National Infrastructure sectors-ranging from healthcare and defence to industrial and government. With recent acquisitions and further growth on the horizon, the group is building a new brand and unified IT architecture to support its long-term strategy. You'll join a newly formed internal support and systems team and play a key role in delivering a robust, secure, and compliant IT infrastructure aligned to the Group's technology roadmap-designed to enable collaboration, operational efficiency, and secure digital transformation. Role Overview This hands-on, strategic role requires a proven leader with experience in complex Microsoft 365 tenant environments and enterprise IT systems. You'll be responsible for implementing and managing a Group-wide infrastructure built on Microsoft's cloud and hybrid technologies, integrating systems from acquired businesses, and maintaining operational excellence. You'll be the driving force behind a new, greenfield Microsoft O365 tenancy and ensure successful integration of multiple domains into a cohesive platform that supports productivity, governance, and collaboration across the business. Key Responsibilities Systems Strategy & Planning Define and implement the Group IT roadmap in alignment with business strategy Assess existing systems and prioritise technology initiatives and projects Allocate resources and track progress with internal and external stakeholders Microsoft 365 Tenant Integration Build and manage a Group-wide M365 tenancy across multiple domains Standardise platform configuration and enforce governance and security policies Enable seamless collaboration, identity and access management, and application integration Manage third-party applications such as Sage HR, Sage 200, Concur, HubSpot and D365 CRM Integration, Migration & Transformation Lead integration of IT platforms from acquired businesses into the Group infrastructure Coordinate secure and compliant data migrations and system cutovers Optimise platform performance, simplify collaboration and reduce duplication Operations & Support Ensure the stability, security, and efficiency of day-to-day IT operations Oversee troubleshooting, upgrades, and BAU system administration Manage MSPs and other vendors to meet SLAs and performance targets Compliance & Risk Management Enforce policies that support regulatory compliance and IT security Develop and test Business Continuity and Disaster Recovery plans Monitor risk, conduct audits, and implement remediation actions as needed Project & Budget Management Lead IT projects through their lifecycle, including scoping, budgeting and delivery Track project performance using KPIs and provide actionable insights to senior leadership Report against OpEx and CapEx budgets, ensuring effective use of resources Stakeholder Engagement & Training Work closely with stakeholders in HR, Finance, and Service Delivery to align systems with needs Provide training and adoption support for new systems and processes Champion innovation, continuous improvement, and digital enablement across the organisation Experience & Skills Required 5 years in IT systems/infrastructure management, preferably in MSP or systems integrator environments In-depth experience administering and configuring Microsoft 365 tenants and Azure Active Directory (Entra ID) Strong understanding of Exchange Online, SharePoint, Teams, OneDrive, and cross-domain collaboration Proven track record in IT systems integration, governance, and security Familiar with ITIL, DR/BCP frameworks, and compliance standards (e.g., ISO 22301, ISO 27031) Hands-on with endpoint security, MDM, MFA, compliance policies, and Power Platform (Power BI, Power Automate) Excellent project management, communication and stakeholder engagement skills Comfortable working in a high-change, fast-paced environment Qualifications & Clearance Degree in IT, Computer Science or related field (or equivalent experience) Industry certifications (e.g., ITIL) are desirable Must have the right to live and work in the UK Full UK driving licence Able to obtain BPSS and SC clearance Why Apply? Play a pivotal role in shaping and managing the IT foundation of a national infrastructure-focused organisation Lead high-impact, cross-functional transformation projects Enjoy autonomy, flexibility, and the ability to influence at all levels Work in a newly formed team with a mandate to build from the ground up Hybrid working with UK-wide engagement ADZN1_UKTJ

Location: Milton Keynes, GB

Posted Date: 5/12/2025