Mechanical Assembler/ Fitter – Engineering Workshop

Are you passionate about precision engineering and take pride in bringing complex machinery back to life?

Join a highly skilled workshop team in Croydon, where every day brings something new from rail transmissions and cooling systems to marine gearboxes and power industry components.

This workshop is a vital part of the UK’s engineering network, supporting customers across the Rail, Marine, Power, Oil & Gas sectors and beyond. Whether developing innovative new solutions or restoring critical equipment to peak performance, you’ll be part of a team that keeps industries moving.

About the Role

As a Mechanical Fitter, you’ll play a hands-on role in the maintenance, repair, and overhaul of mechanical systems and rotating equipment. Working across specialist product cells, you’ll take full ownership of your projects — from strip-down and inspection to assembly, testing, and documentation.

You’ll work with precision, following detailed drawings and specifications to diagnose faults, rebuild systems, and ensure that every component performs flawlessly before it returns to service.

Key Responsibilities

• Carry out strip down, inspection, survey, assembly, and testing of mechanical systems including gearboxes, pumps, couplers, transmissions, and cooling units.
• Interpret engineering drawings to identify components and understand system functions.
• Ensure accuracy and adherence to tolerances using precision measuring tools such as micrometers and calipers.
• Apply correct assembly techniques — including torque tightening and shrink fits.
• Uphold high standards of health & safety and workshop housekeeping.
• Complete clear, accurate technical documentation throughout each project.
• Take ownership of basic maintenance for equipment in your work cell.
• Contribute to a positive, collaborative team culture, sharing technical insights and ideas for continuous improvement.
• Participate in regulated industry compliance, including national drugs and alcohol testing programs (e.g. rail sector).

Skills & Experience

• Minimum 2 years’ experience in mechanical fitting, ideally with rotating equipment.
• Strong mechanical aptitude and background in an engineering or workshop environment.
• Preferably apprentice trained or holding a relevant engineering qualification.
• Working knowledge of Risk Assessments, COSHH, and safety systems.
• High attention to detail, precision, and quality.
• Ability to work independently while contributing to a team.
• Flexible, adaptable, and eager to learn new skills.
• Excellent communication skills, especially in discussing technical issues.

What We’re Looking For

We’re seeking a hands-on engineer with a passion for mechanical systems and a mindset for continuous improvement. You’ll be a team player, a problem solver, and someone who takes pride in doing the job right the first time.

If you thrive in a fast-paced, technically varied environment and want to be part of a team that tackles challenges across multiple industries — we’d love to hear from you.

Why Join?

• Be part of a highly skilled, diverse engineering team.
• Work on industry-leading mechanical systems across multiple sectors.
• Opportunities for growth, training, and development.
• Play a key role in keeping critical infrastructure running across the UK and Ireland.

Location: Croydon

Employment Type: Full-time, Permanent

Industry Sectors: Rail | Marine | Power | Oil & Gas | Engineering