Job Opportunity: Principal Contractor Site Manager - National Grid Substation (Bristol) Location: Bristol, UK Contract Type: CIS (Self-Employed) Rate: From £550/day (negotiable based on experience) Start Date: ASAP Project Duration: Long-term We are seeking an experienced Principal Contractor Site Manager to lead the civil engineering package on a challenging National Grid substation build in Bristol. This is a high-profile infrastructure project requiring a proven leader with deep expertise in National Grid standards and procedures. Key Responsibilities: Oversee and manage all site activities related to the civil engineering scope of the substation build. Ensure full compliance with National Grid safety, environmental, and quality standards. Coordinate with subcontractors, engineers, and client representatives to ensure smooth project delivery. Maintain site records, manage risk assessments, and lead daily briefings and toolbox talks. Act as the main point of contact for all site-related matters. ✅ Essential Requirements: Extensive experience managing civil engineering works on National Grid substation projects. Full National Grid PSCM SR163 authorisation, including: NSI6 & NSI8 Competent Person National Grid Person National Grid HSG47 SMSTS (Site Management Safety Training Scheme) First Aid at Work Environmental Awareness CCNSG Safety Passport What We Offer: Competitive CIS day rate starting at £550/day Opportunity to work on a technically complex and rewarding project Supportive project team and long-term contract potentialInterested? If you meet the criteria and are ready to take on a challenging and rewarding role, please send your CV and proof of authorisations Please click to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement. To find out more about Progressive please visit Progressive Recruitment, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales