Site Supervisor (Civils)

Established in 1998, JSM Group designs and installs the power networks, digital infrastructure and specialist systems that critical industries run on, from high-power grid connections and data centres to renewable energy. Our turnkey teams deliver complex infrastructure at speed, on time, and with reduced legislative, technical and commercial risk.

About the role

You'll be part of a dynamic operational team responsible for delivering civil engineering and excavation works to the highest standards. This role sits at the heart of our site operations, ensuring civils works are carried out safely, efficiently and in line with client expectations.

As a Site Supervisor, you will oversee day-to-day civils operations at site level, managing the efficient and economic use of resources, materials, transport, plant and equipment to its best potential across excavation, reinstatement and groundworks activities.

Location: This role will predominantly be London based however may require national coverage and flexibility to work across various locations.

Responsibilities

• Supervising civils site operations and deploying resources effectively across excavation, ducting and reinstatement work streams
• Ensuring plant, equipment and materials are available and delivered to site on time
• Managing contract administration in line with the company IMS and Contract Terms & Conditions
• Obtaining and managing Permits to Work, conducting site walkthroughs and SLAM checks
• Ensuring utility drawings are current, CAT & Genny surveys are completed, and all existing services are clearly marked before excavation begins
• Overseeing site setup, excavation safety, traffic management, and compliance with Local Authority Permit Conditions
• Ensuring reinstatement works meet NRSWA specification and Local Authority requirements
• Recording works using the Trimble system and completing R1 submissions and close-out documentation
• Liaising with Estimators and Surveyors to provide operational and technical support on civils packages
• Monitoring and enforcing PPE compliance and safe digging practices (HSG47)
• Ensuring all SHEQ documentation — including RAMs, risk assessments and excavation inspections — is completed to a high standard
• Delivering and verifying site-specific inductions, toolbox talks and safety briefings
• Reporting all incidents, close calls and near misses in line with company procedures
• Ensuring compliance with environmental legislation, waste management and the SWUK Protocol
• Lead site teams with confidence, ensuring civils works are delivered incident-free and to programme
• Maintain a safe, compliant and well-organised site at all times
• Build strong relationships with clients, Team Leaders and stakeholders
• Take ownership of your project, driving quality and continuous improvement in excavation, reinstatement and groundworks
• Identify opportunities for innovation and cost-effective civils solutions
• Support your teams through clear communication, coaching and accountability

Requirements

• Strong civils background with a minimum of 2 years' experience in a supervisory position
• NRSWA accreditation (Streetworks/Excavation) and Supervisors' accreditation
• CSCS and/or EUSR Card at the appropriate level of responsibility
• SSSTS (Site Supervisor Safety Training Scheme)
• Technically competent in NRSWA works, excavation, reinstatement and safe digging practices
• Sound understanding of ground conditions, excavation support and reinstatement standards
• Strong written and verbal communication skills
• Effective leader with good organisational skills and the ability to adapt and problem-solve
• Self-motivated, positive, and able to work as part of a team

Benefits

• Participation in mentoring and coaching programmes
• 28 days of holiday (excluding bank holidays)
• 2 paid volunteering days a year
• Continuous training and development, in both technical and business skills