Senior NEC4 Construction Supervisor – Nuclear Infrastructure

Assystem; Helensburgh; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Umbrella contractor

Job summary

Assystem is seeking an experienced Construction Supervisor (NEC4) to join our UK team, delivering major infrastructure projects within the nuclear sector. Reporting to the Construction Manager, you will oversee site activities, ensure contractors perform safely, meet quality standards, and maintain rigorous documentation.

The role requires a proven track record on large civil engineering projects, deep knowledge of NEC4 contracts, CDM regulations, and strong communication with project managers

Qualifications

• Experience supervising construction works on large civil/infrastructure projects.
• Good understanding of NEC4 contracts and the Supervisor role.
• Strong knowledge of construction quality, safety and site inspections.
• Excellent communication and stakeholder management skills.
• Solid understanding of CDM Regulations and safety legislation.
• Minimum 15 years' experience delivering major civil projects.
• Experience in heavy civil construction and regulated environments.

Responsibilities

• Act as the NEC4 Supervisor, ensuring works comply with contract requirements.
• Supervise construction activities, monitoring quality, safety and progress on site.
• Carry out inspections, witness testing, identify defects and support QA.
• Review contractor documentation including ITPs and Quality Plans.
• Work with Project Managers, contractors, and stakeholders to deliver projects.
• Maintain accurate site records, reports and project documentation.
• Monitor contractor HSQE performance and support safety activities.
• Contribute to commissioning, lessons learned and continuous improvement.

Skills

Construction supervision experience

NEC4 contracts knowledge

Quality and HSQE knowledge

Stakeholder management

CDM Regulations knowledge

Regulated environments experience

Attention to detail

Strong organisational skills

Education

HNC/HND in Civil Engineering

NEC4 Supervisor Accreditation (or willingness)

Job description

Assystem is seeking an experienced Construction Supervisor (NEC4) to join our UK team, delivering major infrastructure projects within the nuclear sector. Reporting to the Construction Manager, you will oversee site activities, ensure contractors perform safely, meet quality standards, and maintain rigorous documentation.

The role requires a proven track record on large civil engineering projects, deep knowledge of NEC4 contracts, CDM regulations, and strong communication with project managers