Mechanical Fitting Supervisor

At Amentum, we’re not just solving problems; we’re engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you’re passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family‑friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships.

Work‑life balance and flexibility is a key focus area for us.

The Industrial Mechanical Fitting Supervisor is responsible for leading a team of mechanical fitters to ensure the safe, efficient, and high‑quality installation, maintenance, and repair of industrial mechanical equipment. This role oversees daily workflow, provides technical guidance, ensures compliance with safety and engineering standards, and supports continuous improvement across mechanical operations.

• Lead, supervise, and support a team of mechanical fitters across planned and reactive maintenance tasks.
• Allocate daily work assignments, manage labour resources, and ensure tasks are completed on time and to specification.
• Mentor and develop team members, providing training, coaching, and performance feedback.

• Oversee the installation, alignment, inspection, and repair of industrial mechanical systems, including pumps, conveyors, motors, gearboxes, hydraulic/pneumatic systems, and associated components.
• Ensure all maintenance activities follow engineering drawings, specifications, and OEM requirements.
• Diagnose mechanical faults and support complex troubleshooting activities.

• Enforce adherence to all site safety standards, risk assessments, permits to work, and safe working practices.
• Ensure the team complies with relevant legislation, industry standards, and company policies.
• Promote a strong safety culture and lead by example in all operational activities.

• Work closely with planners and engineering management to schedule planned maintenance and coordinate resources.
• Ensure accurate completion of maintenance records, job cards, equipment logs, and shift reports.
• Assist in developing and improving maintenance procedures and engineering documentation.

• Identify opportunities to reduce downtime, improve equipment reliability, and optimise processes.
• Support root cause analysis and corrective action initiatives.
• Recommend improvements to tools, methods, and maintenance strategies.

• Liaise with production, engineering, and project teams to prioritise work and minimise operational disruption.
• Coordinate with external contractors and suppliers when required.
• Provide technical input into engineering projects and equipment upgrades.

• Time‑served mechanical fitter or equivalent engineering apprenticeship.
• Proven experience in industrial mechanical maintenance and fitting within a manufacturing, heavy industry, or similar environment.
• Previous supervisory or team‑leading experience.
• Strong understanding of mechanical systems, maintenance techniques, and engineering drawings.
• Excellent…