Site Supervisor

RTL Group Ltd; Durham; On-site; GBP 45,000 - 60,000; Full time

Benefits offered by this job

Competitive pay rates

Major energy infrastructure project

Career progression and training

Job summary

RTL Group Ltd. seeks an experienced Site Supervisor to lead on a live substation project in Durham. You will oversee civil and electrical works, manage RAMS and permits, and coordinate subcontractors while ensuring safety, quality, and progress on site.

The role requires HV safety knowledge, CSCS Supervisor status or equivalent, and SSSTS/SMSTS certification, with a strong track record in civils within energy infrastructure.

Qualifications

• Experience supervising substation or similar infrastructure projects.
• Proven knowledge of HV safety procedures and protocols.
• Ability to read and interpret technical/electrical drawings.
• Experience with RAMS and permit-to-work systems.

Responsibilities

• Supervise daily site operations on a live substation project.
• Coordinate subcontractors, trades and suppliers to meet milestones.
• Ensure compliance with health, safety and environmental standards on HV sites.
• Oversee civil works (foundations, ducting, drainage) and electrical installation activities.
• Conduct site briefings, toolbox talks and RAMS.
• Monitor and report project progress and resolve issues promptly.
• Ensure works follow drawings and specifications and liaise with project managers and client reps.
• Maintain site records including diaries, inspections and permits.

Skills

Site management

High voltage safety

Reading drawings

RAMS management

Leadership

Communication

Organisational skills

Driving licence

Education

CSCS Supervisor

SSSTS or SMSTS

Civil/Electrical engineering qualifications

Job description

About the Role

We are currently recruiting for an experienced Site Supervisor to support the delivery of a high-profile substation project in Durham. This role is suited to a hands‑on professional with a strong background in civils within the energy or utilities sector. You will play a key role in ensuring safe, efficient, and high-quality execution of works on site.

Key Responsibilities

• Supervise daily site operations on a live substation project
• Coordinate subcontractors, trades, and suppliers to meet project milestones
• Ensure strict compliance with health, safety, and environmental standards, particularly within high-voltage environments
• Oversee civil works (foundations, ducting, drainage) and/or electrical installation activities
• Conduct site briefings, toolbox talks, and risk assessments (RAMS)
• Monitor and report on project progress, identifying and resolving issues promptly
• Ensure all works are carried out in accordance with technical drawings and specifications
• Liaise with project managers, engineers, and client representatives
• Maintain accurate records including site diaries, inspections, and permits

Requirements

• Proven experience as a Site Supervisor on substation or similar infrastructure projects
• Strong understanding of high-voltage (HV) safety procedures and protocols
• Relevant qualifications in construction, civil engineering, or electrical engineering
• Valid CSCS card (Supervisor level or above)
• SSSTS or SMSTS certification (essential)
• National Grid / SSE / SPEN authorisations (desirable)
• Experience managing RAMS and permit-to-work systems
• Excellent leadership, communication, and organisational skills
• Ability to read and interpret technical and electrical drawings
• Full UK driving licence

What We Offer

• Competitive pay rates and benefits
• Opportunity to work on a major energy infrastructure project
• Career progression within a growing sector
• Supportive team environment and ongoing training