Job Title

Senior Microsoft 365 AdministratorHoddesdon, UK | Hybrid (onsite & remote) + occasional UK travelWe're recruiting a Senior Microsoft 365 Administrator to take ownership of the administration, optimisation, and security of a complex Microsoft 365 environment within a highly regulated, global organisation operating to ITIL / ISO standards.This is a hands‐on, senior technical role with real influence — ideal for someone who enjoys leading initiatives, acting as a technical authority, and mentoring others while driving continuous improvement.The RoleYou'll be responsible for the end‐to‐end management of Microsoft 365 services, ensuring stability, performance, security, and alignment with organisational goals. Acting as a subject matter expert, you'll lead migrations, enhancements, and optimisations, while supporting complex escalations and guiding junior team members.The role involves a mix of strategic ownership and hands‐on delivery, with collaboration across IT and business teams.Key ResponsibilitiesLead administration, management, and optimisation of Microsoft 365 servicesOwn and deliver migrations, updates, and platform improvementsUse PowerShell scripting and automation to drive efficiency and best practiceAct as SME for complex escalations, troubleshooting and resolving issuesDevelop, document, and maintain processes, procedures, and standardsManage patch testing and deployment across end‐user devicesMonitor and maintain security, compliance, and risk controlsMentor and support junior IT team membersCollaborate cross‐functionally to align M365 initiatives with wider business goalsStay current with emerging Microsoft technologies and recommend improvementsSupport Microsoft 365‐related projects from design through deliveryWhat We're Looking ForEssential:8+ years' experience working in a Microsoft enterprise environmentStrong hands‐on expertise with Microsoft 365, including:IntuneExchange OnlineSharePoint OnlineMicrosoft TeamsProven experience leading M365 migrations and optimisationsAdvanced PowerShell scripting and automation skillsStrong understanding of identity, security, compliance, and modern architecturesExcellent problem‐solving and troubleshooting capabilityConfident communicator, able to explain technical concepts clearlyExperience mentoring or leading other technical team membersDesirable:Microsoft certifications (e.g. Enterprise Administrator Expert, Modern Desktop Administrator)Experience working in regulated or ISO‐aligned environmentsWhy Apply?Senior, influential role with real ownershipTechnically complex Microsoft 365 estateCollaborative, professional IT environmentOpportunity to shape standards, processes, and future directionMix of strategic work and hands‐on technical deliveryInterested?Apply directly via LinkedIn or reach out for a confidential discussion.Planet Pharma is an equals opportunities Recruitment Business and Agency. We welcome applications from all suitably qualified candidates regardless of their race, sex, disability, religion/belief, sexual orientation, or age.