Assistant Mechanical Technician – Nuclear Operations

Assistant Mechanical Technician – Nuclear Operations

Dalkia’s mission is to succeed by delivering a better experience. Join us and you’ll shape more than just your career.

Through our fresh thinking and agile working we help our customers, communities and our people to flourish. As a Mechanical Technician you’ll be part of a team delivering an exceptional, distinctive and consistent operational safety experience, which creates an environment where our people can thrive and do their best work.

We are seeking an experienced Assistant Mechanical Technician to join our nuclear operations team. The successful candidate will be responsible for the installation, maintenance, repair and testing of mechanical systems and equipment within highly regulated nuclear environments.

The role requires strict adherence to health, safety, quality, and nuclear compliance standards while delivering work to programme deadlines and engineering specifications.

They will be supported by a multi‑disciplinary team at various stages of the process including Operations Manager, Contract Manager, Project Manager and Project Engineers.

• Assist and carry out mechanical fitting, assembly, maintenance, and overhaul activities on nuclear plant equipment and systems.
• Assist with installation, alignment, dismantling, and commissioning of mechanical components including pumps, valves, pipework, turbines, heat exchangers and rotating equipment.
• Read and interpret engineering drawings, technical specifications, and maintenance procedures.
• Perform planned preventative maintenance and reactive repair works in accordance with site schedules.
• Ensure all work is completed in line with nuclear safety regulations, quality assurance procedures, and permit‑to‑work systems.
• Assist with inspections, fault finding and testing of mechanical systems and report defects or deviations.
• Maintain accurate maintenance records, inspection reports and job documentation.
• Work collaboratively with engineers, supervisors, planners and other trades to ensure efficient project delivery.
• Follow radiological protection procedures and comply with controlled‑area working requirements where applicable.
• Participate in toolbox talks, safety briefings and continuous improvement initiatives.

• Previous experience working within the nuclear industry or other highly regulated sectors such as power generation, oil & gas, petrochemical or defence.
• Strong knowledge of mechanical systems, rotating equipment and maintenance techniques.
• Ability to interpret engineering drawings and technical documentation.
• Understanding of permit‑to‑work systems and safe systems of work.
• Excellent awareness of health, safety, environmental and quality standards.
• Ability to work independently and as part of a multi‑disciplinary team.
• Strong problem‑solving and communication skills.
• Candidate would bring a can‑do attitude and a focus on standards.
• Can generate a sense of urgency and importance – demanding of others.
• Remains calm under pressure.
• Passionate about our sector, embodies the Dalkia “IT WORKS” values of Identity, Trust, Working Hard, Open, Robust, Knowledge, Say It – Do It.
• Keen to continue learning and developing their skillset, having a growth mindset.

• CCNSG Safety Passport.
• IOSH Working Safely or equivalent.
• Nuclear site clearance / security clearance (desirable).
• Experience with confined spaces, lifting operations or working at height certifications.

• 3 Years experience as Assistant Mechanical Technician.
• Experience with in Power, Oil & Gas, or Pharmaceutical Industry.
• Nuclear Experience Preferred.
• Work within RCA environment.

You will be required to complete EDF/Dalkia training as part of this role.