Plant Supervisor

Overview

Heidelberg Materials UK (formerly Hanson UK) is one of the UK’s largest suppliers of construction materials, employing over 4,000 people and operating around 300 manufacturing sites in the UK. We are committed to building a more sustainable future and recognise that a diverse workforce is key to our growth and development. We aim to foster a culture that values openness, transparency and individual achievement.

At the centre of our actions lies the responsibility for the environment. As the front runner on the path to carbon neutrality and circular economy in the building materials industry, we are working on sustainable building materials and solutions for the future. We enable new opportunities for our customers through digitalisation.

Plant Supervisor – Sizewell

• Location: Sizewell
• Working Hours: 39 per week (Mon–Thu: 8 hrs, Fri: 7 hrs)
• Accommodation: £1143.34 tax-free CESA allowance (if 50+ miles from Sizewell)
• Overtime: Paid for all hours worked beyond contracted hours
• Shift Rate: 1.2 uplift on hourly rate where applicable

We’re looking for a proactive and safety-focused Plant Supervisor to support the Production Manager in the safe, efficient and compliant running of our Sizewell site. This is a key role ensuring our batching operations deliver high‑quality concrete, excellent customer service and full adherence to Hinkley Point and EDF requirements.

You’ll play a vital part in maintaining high standards in Health & Safety, environmental performance, plant maintenance, and stock control
, ensuring day-to‑day operations run smoothly and safely.

• Follow all NNB and Heidelberg Materials Health & Safety policies in line with the Health & Safety at Work Act 1974.
• Actively report Near Misses and site issues; promote a safe working culture.
• Ensure site, plant and buildings remain in a clean, safe condition at all times.
• Manage waste, water discharge and dust emissions in line with EDF environmental procedures.
• Maintain full compliance with EDF policies including quality, fraud prevention and the Competition Act (RTP).

• Accurately batch concrete to approved systems, processes and technical standards.
• Maintain constant communication with the Production Manager to ensure adequate stock levels and material availability.
• Conduct visual inspections of raw materials, reconcile stock weekly, and submit daily/weekly/month-end stock reports.

• Handle customer enquiries professionally and courteously, maintaining a high company image.
• Support production planning and scheduling to meet customer needs.
• Liaise with EDF contractors, office teams and other partners to ensure high-quality output and service delivery.

• Operate the batching plant effectively to EDF standards.
• Conduct and oversee routine plant maintenance, ensuring equipment, buildings and surrounding areas are clean and compliant.
• Report defects or issues that may affect health & safety, environmental compliance, product quality or service.

• Maintain strong working relationships with third parties and contractors.
• Protect site security at all times.
• Seek guidance from the Production Manager or Project Lead for matters outside the role’s authority.
• Carry out additional duties as required.

• High self‑motivation, enthusiasm and pride in work.
• Strong attention to detail and commitment to quality.
• Ability to work independently and confidently within a demanding operational environment.

• Competitive package:
  Salary, bonus, generous pension & life assurance
• Work-life balance: 27 days holiday + bank holidays, flexible working, holiday purchase & sabbatical options
• Family-friendly policies:
  Enhanced maternity, paternity, adoption, IVF, neonatal and menopause support
• Inclusive culture:
  Paid volunteering day and active employee networks
• Wellbeing & development: EAP support, retail discounts, and continuous learning

Additional Role Details

• Right-to-Work:
  External candidates must provide evidence; internal candidates do not
• Accommodation: CESA allowance (£980 tax-free/month for those 50+ miles away)
• Vehicle:
  No van provided for this role
• Breaks:
  If lunch cannot be taken away from work duties, it will be paid

Ready to Build Something That Lasts?

If you’re enthusiastic, safety-conscious and ready to take on a key operational role at Sizewell, we’d love to hear from you.