Johnson Matthey
Plant Improvement Engineer

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Job title: Plant Improvement Engineer
Location: Royston, UK (site-based role)
Contract Type: 12-month fixed term contract
About the Role
This role is instrumental in the success of the Royston site Maintenance and Engineering function. The key requirement is to root cause long-standing issues with ageing assets. Within the business context, build a cost-benefit analysis to engage stakeholders and facilitate a decision. Where the decision is made to progress with a project, manage this within our management of change framework through contractors. Ensuring hand-back to operations and maintenance is well managed.
About Johnson Matthey
World-changing careers, enabled by Johnson Matthey. With more than 200 years of history, join us and help to accelerate the transition to net-zero! As a Plant Improvement Engineer, 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
As a Plant Improvement Engineer, you will help drive our goals by:
- Lead root cause analyses for equipment failures, chronic issues, and unplanned outages. Ensure corrective actions are defined, implemented, and validated for sustained improvement.
- Create and refine preventive and predictive maintenance strategies aligned with asset criticality and plant utilization. Collaborate with maintenance teams to optimize schedules, frequencies, and scope to minimize downtime and cost.
- Lead and support plant improvement projects aimed at enhancing asset integrity, equipment performance, process stability, and plant availability.
- Use CMMS data to identify bad-acting assets, evaluate failure modes, and analyze MTBF/MTTR.
- Managing contractors, reviewing RAMS, and ensuring work is carried out per the plan. Ensuring safe systems of work are followed to execute the job.
- Working broadly with SMEs and the wider team to engage and manage stakeholders such that the needs and intent of the work is understood.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
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Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
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Key Skills
- Operational Maintenance Experience
- Root cause analysis/structured problem-solving experience
- Preventative maintenance / condition-based monitoring
- Excellent communication skills – able to communicate across all levels in the business
Even if you only match some of the skills, we’d love to hear from you to discuss further!
What We Offer
- Fair, competitive, and aligned salaries based on individual roles, experience, and responsibilities.
- Supportive of hybrid and flexible working.
- Benefits that support our employees’ financial and physical wellbeing, such as:
- Retirement savings
- Share plans
- Savings accounts
- House saving funds
- Life and disability insurance
- Commuter allowances and loans
- Medical plans / health assessments
- Fitness discounts
Inclusion and Diversity
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.


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Application Process
For any queries or accessibility requirements, please contact GlobalRecruit@matthey.com. 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.
Reference Codes:
- #LI-AG1
- #LI-Onsite
- #CVL
- #JMUK
To submit your application, please click the "Apply" button online.
Note: All applications are carefully considered and your details will be stored on our secure Application Management System. This is used throughout Johnson Matthey for the selection of suitable candidates for our vacancies as they arise. Johnson Matthey respects your privacy and is committed to protecting your personal information.
For more information about how your personal data is used, please view our privacy notice: Johnson Matthey Privacy Notice.
By applying for this role and creating an account, you are agreeing to the notice.
Equal Opportunities Employer
Johnson Matthey Plc is an equal opportunities employer and positively encourages applications from suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, marriage or civil partnership, pregnancy or maternity, religion or belief.
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