Site Supervisor
Join Trant Engineering and help shape the delivery of complex, high-impact projects.
Trant Engineering is a leading EPC contractor with a strong reputation for delivering innovative engineering solutions across the UK and internationally. With over 1,000 employees and a £150m turnover, we’re growing—and now looking for a Civil Site Supervisor to play a key role in our project delivery teams.
The Role
We are seeking an experienced Civils SCO91 Authorised Person to support works on National Gas Transmission (NGT) infrastructure projects across Hampshire and the South Coast region.
This role will play a critical part in ensuring the safe control and coordination of civil engineering activities on high-pressure gas transmission assets, including compressor stations, AGIs, and associated pipeline works.
1) Technical Responsibilities - Site Supervision
Act as the SCO91 Authorised Person, controlling and coordinating permits for site activities
Implement and manage Safe Control of Operations (SCO) procedures on National Gas sites
Issue and manage:
- Permit to Work (PTW)
- Forms of Authority (FoA)
Ensure all works comply with:
- National Gas Transmission procedures
- IGEM/GL/6 requirements
- CDM Regulations and HSE standards
Coordinate civil subcontractors and site teams, ensuring safe sequencing of works
Carry out site inspections, audits, and safety briefings Maintain accurate documentation for permits, isolations, and control systems
2) Safety, Health, Environmental & Quality & Compliance
- Implement and enforce health, safety, and environmental policies on site.
- Conduct daily toolbox talks, risk assessments, and site inspections.
- Report incidents, near misses, and hazards promptly and accurately.
- Maintain accurate records of daily site activities, including work progress, inspections, and material usage.
- Support QA/QC processes to ensure compliance with company and client standards.
- Assist with site handovers and defect management.
3) Stakeholder Communication
- Act as the first point of contact for on-site queries from operatives and subcontractors.
- Provide regular updates to the General Foreman or Project Manager.
- Liaise with clients, inspectors, or other site visitors when required.
4) Key Interfaces: Internal Interfaces
- General Foreman / Site Manager
- Principal Contractor
- Client representatives
- Authorising Engineers
External Interfaces
- Subcontractors & Suppliers
- Clients / Consultants
- Regulatory Authorities / Local Authorities
5) Core Values
- Uphold and promote the Company’s Core Values – Care, Trust, Respect and Sustainability.
You may be required to undertake additional duties, consistent with the responsibilities and level of this role, beyond those specified above.
Essential
Valid SCO91 certification (National Gas Transmission)
Proven experience working on NGT / National Grid Gas Transmission projects
Strong understanding of:
Valid SCO91 certification (National Gas Transmission)
Proven experience working on NGT / National Grid Gas Transmission projects
Strong understanding of:
- Safe Control of Operations (SCO)
- Permit to Work systems
Registration on the National Gas / EUSR database
SHEA Gas certification
Civil engineering / utilities background (groundworks, pipelines, AGIs, etc.)
Excellent knowledge of site safety procedures and compliance requirements
Strong communication and leadership skills
SHEA Gas certification
Civil engineering / utilities background (groundworks, pipelines, AGIs, etc.)
Excellent knowledge of site safety procedures and compliance requirements
Strong communication and leadership skills
Desirable
Temporary Works Supervisor / Coordinator
SMSTS or SSSTS
First Aid at Work
Experience on:
- Compressor stations
- High-pressure gas infrastructure
- COMAH or energy sites
At Trant, we offer the opportunity for career development and progression within a professional working environment, and we strongly encourage employees to gain professional qualifications and fully support individuals on their journeys.
We offer:
We offer:
- Long-term pipeline of work across National Gas projects
- Opportunity to work on critical UK energy infrastructure projects
- Supportive project team and strong safety culture
- Potential for progression into senior supervisory or Authorising Engineer roles
Our company benefits package includes.
- Competitive rates / salary package.
- Company car or car allowance.
- 24 days holiday (increasing with service) + 8 bank holidays.
- Options to buy additional holiday via salary sacrifice.
- Company Pension Scheme.
- Employee Assistance Program.
- Discretionary annual bonus.
