Steam Mechanical Engineer

For nearly 75 years, Charles River employees have worked together to assist in the discovery, development and safe manufacture of new drug therapies. When you join our family, you will have a significant impact on the health and well-being of people across the globe. Whether your background is in life sciences, finance, IT, sales or another area, your skills will play an important role in the work we perform.

In return, we’ll help you build a career that you can feel passionate about.

Rota – 35 hours per week.

Monday – Thursday 8:00 am – 4:30 pm. Friday 8:00 am – 1:00 pm. Out of hours callouts – rostered – 1 in 4 weeks (Paid at additional rate).

Please note due to the nature of the role flexibility surrounding core hours is essential.

Steam Mechanical Engineer to operate, maintain, and repair site steam-based systems. Ensure high‑pressure systems meet safety, efficiency, and regulatory standards (e.g., pressure vessel compliance).

• Perform planned and reactive maintenance on industrial boilers, steam pipework, and condensate systems.
• Ensure all steam systems adhere to health, safety, and statutory requirements.
• Diagnose and fix mechanical, electrical, and control issues within steam plants (e.g., steam traps, PRVs).
• Improve efficiency and reliability of heating, cooling, and steam generation processes.
• Handle other related or unrelated maintenance works required to maintain critical plant onsite.
• Execute mechanical repairs and improvements to company properties on a responsive and strategic basis.
• Carry out mechanical tests, reports and necessary repairs on company property.
• Conduct preventative planned maintenance and complete relevant job documentation.
• Respond to reactive work orders as required.
• Install, repair, and modify pipework throughout site (copper and iron).
• Operate and daily test steam controls of site boilers (BOAS training can be provided).
• Operate and upkeep site biomass boiler.
• Carry out feed‑water and boiler‑water analysis.

• At minimum, City & Guilds Mechanical installation qualification.
• Steam qualification or equivalent experience.
• Some IT literacy.
• Experience working in a busy environment to tight deadlines.
• Experience maintaining steam boilers.
• Planned preventive maintenance experience.
• HVAC experience.
• LTHW boilers experience.
• Controls experience.
• Good understanding of pressure system regulation.
• Installation experience.
• Fault‑finding skills.