Lead Mechanical Engineer

About the role

We have a fantastic opportunity for a Lead Mechanical Engineer to join our Ground Engineering team working on the Sizewell C project in Leiston, Suffolk. Be part of this ‘once in a generation’ project that will deliver clean energy to 6 million homes for the next 60 years. Sizewell C will see the creation of a 3.2 Gigawatt nuclear power station on the Suffolk coast to provide reliable low‑carbon electricity.

The Civil Works Alliance is an extended delivery enterprise involving Sizewell C and three international construction companies:
Balfour Beatty, Bouygues Travaux Publics and Laing O’Rourke. We are more than just an alliance; we are bringing together a single delivery organization with years of learning and experience from other major complex infrastructure programmes worldwide.

To lead, manage and coordinate all mechanical plant engineering activities across the project, ensuring the safe, efficient and reliable operation of piling rigs and associated plant equipment. The role provides technical leadership, supervises mechanical teams and ensures all maintenance, inspection and repair activities are delivered in line with project requirements, OEM standards and Balfour Beatty policies.

• Lead and coordinate mechanical maintenance and repair activities across project plant and equipment;
• Ensure plant equipment is safe, compliant, reliable, and operating to optimal performance levels;
• Oversee planned preventative maintenance programmes and effective breakdown response;
• Provide technical guidance and support for complex mechanical, hydraulic and associated system faults;
• Ensure inspection, maintenance, and repair works are completed in line with RAMS, OEM guidance, and company standards;
• Supervise, direct, and support mechanical engineers, fitters, subcontractors, and plant teams;
• Allocate work, manage priorities, and ensure efficient use of resources across multiple work fronts;
• Promote high standards of workmanship, safety, mentoring, and “right first time” delivery;
• Ensure full compliance with health, safety, environmental, quality and maintenance documentation requirements;
• Support plant operations in line with project programme, cost, quality and performance targets;
• Monitor plant performance, defects, downtime and repair trends to identify improvements and inform decision‑making;
• Provide accurate maintenance records, inspection reports, job tracking updates, and regular reports to project and plant leadership teams.

• Significant experience working with heavy construction plant, piling rigs, or similar specialist equipment;
• Proven experience in a supervisory or lead mechanical engineering role;
• Strong diagnostic capability across mechanical, hydraulic and associated plant systems;
• Sound understanding of plant maintenance best practice and health and safety legislation;
• Ability to lead teams across multiple sites and work effectively within a joint venture or complex project environment;
• Strong communication and stakeholder management skills, with the confidence to engage across teams and suppliers;
• NVQ Level 3, or equivalent, in Construction Plant Maintenance, Mechanical Engineering, or a related discipline;
• Relevant CPCS or NPORS qualifications would be advantageous;
• IOSH Managing Safely, OEM training, or other relevant plant training would be desirable;
• A results‑driven, collaborative, customer‑focused approach, with a commitment to excellence and continuous improvement.

Our people are our biggest asset and we focus on recruiting, training and developing the people who can apply innovation to deliver the infrastructure of the future. We nurture these talents, offer a great benefits package in addition to a competitive base salary and continually invest in developing the skills of our people at every level.

Some of our key benefits are:

• An attractive/negotiated salary;
• Medical health cover;
• Company car or car allowance;
• Discretionary annual bonus;
• 25 days annual leave + bank holidays;
• Pension savings schemes;
• Enhanced maternity/paternity and family friendly policies;
• Access to our Refer and Earn scheme;
• Discretionary annual salary…