Critical Site Supervisor

Invictus Group; Croydon; On-site; GBP 60,000; Full time

Job summary

A leading company in critical infrastructure based in Croydon is seeking an experienced Critical Site Supervisor. You will lead a small team, oversee maintenance operations in a high-availability Data Centre, and ensure compliance with safety regulations. This full-time role offers a base salary of £60,000 plus benefits including annual leave and ongoing technical training.

Benefits

£60,000 base salary plus paid overtime

25 days annual leave + 8 paid bank holidays

Ongoing technical training and career development

Qualifications

• Experience in a technical supervisory role within a critical environment.
• Strong technical background in electrical and mechanical systems.
• Willingness to complete Security Clearance checks.

Responsibilities

• Lead and supervise a small team of engineers.
• Oversee maintenance across critical building services.
• Support infrastructure projects on a flexible schedule.

Skills

Technical supervisory experience

Leadership skills

Knowledge in electrical and mechanical systems

Flexibility for out-of-hours work

Job description

Critical Site Supervisor – Data Centre Environment – Croydon - £60,000

Full-Time | Mon–Fri, 8am–4pm (with occasional out‑of‑hours work)

A fantastic opportunity has arisen for an experienced Critical Site Supervisor to take the lead in a secure and high‑availability Data Centre environment based in Croydon. This role involves managing a small team of engineers and overseeing the day‑to‑day technical operations of a critical facility.

Key Responsibilities

• Lead and supervise a small team of engineers, ensuring high standards of service and safety.
• Oversee planned and reactive maintenance across critical building services.
• Support infrastructure projects, including occasional evening and weekend work.
• Perform monthly generator load tests (typically out of hours).
• Ensure the site remains compliant with all statutory and regulatory obligations.
• Act as a local point of contact for emergency response

Requirements

• Previous experience in a technical supervisory role, ideally within a critical environment such as a data centre or secure facility.
• Strong technical background in electrical and / or mechanical systems.
• Leadership skills with a hands‑on approach to team management.
• Willingness and flexibility to support out‑of‑hours work when needed.
• Must live locally due to emergency response requirements.
• Must be eligible for and willing to complete full Security Clearance checks.

Desirable

• Current HVAP certification (or readiness to achieve within 12 months).
• Experience in secure, high‑resilience environments.

What’s on Offer

• £60,000 base salary plus paid overtime
• 25 days annual leave + 8 paid bank holidays
• Ongoing technical training and career development
• Opportunity to work in a secure, business‑critical infrastructure