Location: Buckinghamshire
Hybrid: 4 days a week onsite
Role Summary
We are seeking a Principal Cloud & IT Infrastructure Engineer to lead the design, delivery, and optimisation of enterprise‑grade cloud and on‑premise infrastructure. This is a senior hands‑on role with strategic influence, responsible for ensuring high availability, security, scalability, and operational excellence across a hybrid estate.
The role spans Microsoft‑centric platforms, networking and security, with responsibility for maintaining a legacy VMware environment while supporting migration toward modern target platforms.
Key Responsibilities
* Lead infrastructure modernisation initiatives, covering virtualisation, networking, security, and automation
* Architect and implement hybrid cloud solutions using Microsoft Azure and Hyper‑V
* Maintain, optimise, and stabilise a legacy VMware stack, supporting transition to strategic target platforms
* Own SCCM application packaging and deployment standards, including creation and maintenance of packaging runbooks
* Develop and maintain automation for provisioning, patching, backups, and monitoring (PowerShell / Python)
* Oversee daily backup operations, ensuring system integrity, successful completion, and secure off‑site replication
* Act as a technical leader and mentor to service desk and engineering teams
* Perform capacity and performance planning; define and publish reference architectures and technical standards
* Lead proof‑of‑concept activity, evaluate emerging technologies, and deliver production‑ready designs with full documentation
* Ensure core infrastructure patching within SLAs, including Hyper‑V hosts, VMware, Palo Alto and Fortinet firewalls
Required Skills & Experience
* Virtualisation - Hyper‑V / Failover Cluster – Vmware and advantage while we migrate
* Backup monitoring and troubleshooting – Commvault experience preferred
* Firewall configuration & deploy – preferred to have experience with Palo Alto / Fortinet
* Application & OS deployment - Configuration manager, SCVMM, Intune an advantage
* Cloud - Azure specifically Exchange, Teams (inc. telephony), CAP, SAML
* Experience managing Azure and Microsoft 365 tenants
* Familiarity with RSA Authentication Manager
* Experience with Fortinet firewall configuration and support
* Strong PowerShell scripting capability for infrastructure automation
* Exposure to Privileged Access Management (PAM) solutions
* Experience working in secure or regulated environments (desirable but not essential)
Key Performance Indicators (KPIs)
* Successful delivery of infrastructure projects to time and budget
* Critical vulnerability remediation within 14 days for high‑risk CVEs
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