Published 2025-11-02
Job title: Mechanical Commissioning Technician
Location: Royston
Step into a once-in-a-lifetime opportunity to help shape the future of advanced manufacturing as a Mechanical Commissioning Technician on the landmark 3 CR (3 rd Century Refinery) project —a flagship initiative at Johnson Matthey’s Royston site.
Working within the Operational readiness team and reporting to the Maintenance Lead, you’ll play a pivotal hands-on role in the commissioning of primary and auxiliary production equipment and utility support systems. Your work will directly sustain operations and ensure the long-term reliability of 3 CR’s cutting-edge assets.
This is not just another maintenance role;it’s your chance to be part of a transformative journey. You’ll be at the heart of commissioning and maintaining high-integrity systems on an upper-tier COMAH site, where your skills in mechanical and electrical engineering will support a proactive EHS culture focused on zero harm. From reactive and preventative maintenance to fault diagnosis and plant modifications, your expertise will help bring the 3 CR facility to life and keep it running at peak performance.
If you’re ready to make your mark on a project that will define the future of sustainable production, this is your moment.
World-changing careers, enabled by Johnson Matthey. With more than 200 years history, join us and help to accelerate the transition to net-zero! As a Mechanical Commissioning Technician , you’ll contribute to JM’s mission as a world leader in sustainable technology, transforming energy and reducing carbon emissions for a cleaner, brighter future.
The role:
Provide a skilled execution of Planned, Reactive & Corrective Mechanical and Electrical maintenance activities to ensure the ongoing reliability of equipment across the plant.
Deliver effective problem solving and Mechanical/Electrical fault diagnosis skills, adhering to identified work priorities to ensure that customers and stakeholders are supported in their daily operational needs.
Undertake occasional plant modification work to help enhance plant safety and improve efficiency.
Conduct Inspections, testing, adjustments, and monitoring tasks as required to maintain efficient plant and build-in equipment reliability.
Key skills that will help you succeed in this role :
Must have completed a recognised Mechanical or Electrical Engineering qualification. BTEC ONC/HNC, C&G Qualifications Parts 1 & 2, NVQ Level 3 or equivalent. - Essential
Completed a City & Guilds Electrical Installation Parts One and Two or equivalent. City & Guilds IEE Wiring Regulations 18th edition (BS7671) - Essential
Experience in a large-scale manufacturing / chemical industry within a maintenance function - Desirable
Experience of working with Profibus networking would be an advantage - Desirable
You will be required to work a 12.5 hour day shift pattern which includes weekends on a rotation of 5 days on followed by 4 days off in rotation. You may be asked to work outside of normal working hours during particularly busy periods such as the annual Stocktake period in April/May, which also requires adherence to a holiday restriction whilst the Stocktake is being undertaken.
What we offer:
We make sure salaries are fair, competitive and aligned to individual roles, experience and responsibilities. We are also supportive of hybrid and flexible working and offer benefits that support our employees’ financial and physical wellbeing, such as:
Competitive Retirement savings
Company-matched Share Incentive Plan
Life Assurance, Income Protection and Critical Illness
Medical Plans/Health Assessments
Retailer and Wellbeing Discounts
Competitive Annual Incentive Plan
Ready to make a meaningful impact on your career and the environment? Join us and help shape a sustainable future while advancing your career!
At JM, inclusivity is central to our values. We create an environment where everyone can thrive, embracing diverse perspectives to tackle challenges and ensure all colleagues feel valued and connected.
For any queries or accessibility requirements, please contact We will work with you to make suitable adjustments at any stage of the recruitment process. All conversations are confidential, and your feedback is welcome to help us provide an accessible and positive recruitment experience.
Closing date for applications: This job advertisement will be posted for a minimum of 2 weeks, early application is advised.
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To submit your application, please click the "Apply" button online.
