Supervisor - Data Centre environment - £55,000 - £60,000 An established global facilities management provider is seeking an experienced Supervisor (HV) to support operations at a large, mission-critical data centre in South London. This is a key leadership role, responsible for supervising day-to-day critical engineering operations while ensuring the highest standards of safety, compliance, and uptime. Responsibilities: Supervise and coordinate a team of critical engineers on site Act as the Authorised Person / Senior Authorised Person for HV systems (where applicable) Ensure safe operation and maintenance of HV/LV electrical infrastructure Oversee planned and reactive maintenance activities Manage permits to work, risk assessments, and method statements Liaise with clients, contractors, and internal stakeholders Ensure compliance with statutory regulations and site procedures Support incident response and escalation processes in a 24/7 critical environment Requirements: Proven experience working within a data centre or critical environment Strong HV electrical background (Authorised Person experience preferred) Supervisory or team leadership experience Excellent knowledge of electrical safety rules and compliance standards Ability to remain calm and decisive in high-pressure situations Relevant electrical qualifications (City & Guilds / NVQ or equivalent)...