Mechanical Construction Supervisor - Power Generation

Job Title: Mechanical Construction Supervisor Power Generation (1-Year Contract)

Location: Enfield, London

Contract Length: 12 months initial contract

Rate: £430.00 per day inc hol pay PAYE rate

Start: January 2026

Overview

We are seeking an experienced Mechanical Construction Supervisor to oversee mechanical installation activities on a major new-build power generation project. The successful candidate will provide leadership, technical oversight, and quality assurance across all mechanical construction scopes, ensuring safe, timely, and compliant delivery of works.

Key Responsibilities

• Supervise day-to-day mechanical construction activities across boilers, piping systems, pressure parts, machinery and balance-of-plant equipment.
• Ensure contractors and subcontractors deliver works to project specifications, engineering drawings, and relevant codes/standards.
• Monitor installation, alignment, welding, pressure testing, and commissioning activities to ensure adherence to QA/QC requirements.
• Enforce site safety policies and promote a strong safety culture within all mechanical work fronts.
• Coordinate with engineering, planning, HSE, and construction management teams to resolve technical issues and maintain progress.
• Review method statements, risk assessments, and lifting/installation procedures for mechanical packages.
• Track progress, identify risks or delays, and support mitigation planning.
• Ensure all documentation, reporting, and inspection records are completed accurately and on time.
• Support commissioning teams during mechanical completion, punch-list closeout, and handover phases.

Required Experience & Qualifications

• Proven experience as a Mechanical Construction Supervisor on large-scale industrial or power generation projects.
• Strong background working with boilers, piping systems, pressure parts, mechanical equipment, rotating machinery and balance-of-plant systems.
• SSSTS/SMSTS
• Demonstrable understanding of mechanical installation workflows, welding standards, pressure systems regulations, and QA/QC processes.
• Experience supervising contractors in a multi-disciplinary environment.
• Strong knowledge of health, safety, and environmental regulations for major construction sites.
• Ability to read and interpret engineering drawings, P&IDs, isometrics, and specifications.
• Excellent communication, coordination, and leadership skills.
• Relevant mechanical engineering qualification (HNC/HND/Degree) preferred.