Tarmac Building Products Ltd
Relief Plant Supervisor

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We are recruiting for an Area Relief Supervisor to join our fantastic Tarmac Readymix RMX team based from our Tarmac Silvertown RMX (Readymix) site in the heart of London and covering our London RMX plants.
The plants are easily accessible via most major road networks and commutable from a multitude of places within the London, Greenwich, Canning Town, Woolwich, Plumstead, Bermondsey, East Ham, Bow, Hackney, Islington, Lambeth, Peckham, Bexleyheath, Dagenham, Barking, Ilford, Wanstead, Brixton, Erith, Rainham, Romford, Stratford and the surrounding areas.
Main Responsibilities
The Area Relief Supervisor will manage and be accountable for the RMX operations on our plants. You will be the Senior Supervisor where Safety and Operational standards are the fundamental aspects of the role with cost control, people management, delivery to customer needs and performance improvement being key. Managing plant compliance with business policies and procedures and ensuring that legislative compliance is also a strong aspect of the role.
Key Tasks and Responsibilities of the Area Relief Supervisor, not exhaustive:
- Leading and active supervisory of the RMX operational teams with the delivery of toolbox talks
- Manage all aspects of daily production including operational costs and control stocks
- Efficient manufacture of concrete, controlling standard deviation and cement contents
- Drive operational performance through KPIs
- Effectively coach and performance manage all direct reports
- Timely resolution of queries assigned to the sector
- Take responsibility for their own safety and that of colleagues and business partners
- Maintain site housekeeping to a high standard
- Batch concrete to meet customer needs whilst meeting internal quality requirements
- Responsible for the budget in relation to the plants they are responsible for, these being both fixed and variable costs
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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Requirements
- You must hold a FULL UK manual car driving Licence with no more than 6 penalty points
- Due to the nature of the role we are open to accepting applications from candidates who can offer strong supervisory / management experience from within a similar heavy industry, as product training will be given to the successful candidate
- The role is a role where flexibility is key to meet our production needs with shift working and overtime available
The Ideal Candidate
To be successful in this role the ideal candidate for the position of Area Relief Supervisor you will have experience and knowledge of:
ESSENTIAL Experience
- Experience in Readymix RMX plant operations at a supervisory level
- Previous experience of an Asphalt / Aggregates environment would prove highly beneficial
- Knowledge of Risk Assessments and Safe System of Work Systems
- Working knowledge of production processes
- Working knowledge of H&S and Environmental policies
DESIRABLE Qualifications
- IOSH Managing Safely
- NVQ in fixed and mobile plant operations
Skills
- Able to actively identify and implement site and process improvements
- Able to effectively communicate to feed opportunities into customer services / sales
- Ability to multitask and manage change


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Why Tarmac
We don't just offer a job, we offer a career.
Alongside this role, you'll have access to industry-leading rewards, development opportunities, and a culture that puts people first, including:
- Bonus scheme
- Enhanced holiday entitlement
- Contributory pension scheme
- Access to the Tarmac Reward website with discounts on retailers, holidays, etc.
- Access to our Employee Assistance helpline for free and confidential advice
- Access to join our Employee Communities (employee networks) we currently have nine communities inc. (REACH) Religious, Ethnic, Cultural Heritage, LGBTQ+, Parents & carers, Ability, Wellbeing, Female voice and menopause
- Training and development opportunities
Tarmac is committed to being a Forces-friendly employer. If you're coming from a military background, we'll support your transition and help you build a successful career with us.
We're proud to be part of CRH, and even prouder to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for everyone. If you need any reasonable adjustments during the recruitment process, just let us know, we're here to support you.
Ready to build your future?
Click Apply to get started. Please note: we sometimes close roles early due to high interest, so don't wait too long!
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