Mould Engineer

Oldcastle Inc.; Peterborough; On-site; GBP 35,000 - 50,000; Full time

Job summary

A leading construction materials firm in the UK is seeking a Mould Engineer responsible for design development and maintenance of moulds used in manufacturing. The ideal candidate should hold a degree in mechanical engineering and have over three years of relevant experience in injection and compression moulding. This role requires collaboration with cross-functional teams and suppliers to ensure high-quality standards. The position is based at sites in Tallington or Stoke with potential travel requirements.

Qualifications

• 3+ years’ experience in low pressure/high pressure injection moulding.
• Experience with thermoplastic/thermosetting tool moulding processes.
• Desirable to have experience with lean manufacturing or Six Sigma.

Responsibilities

• Oversee the design of new moulds in partnership with suppliers.
• Prepare technical documentation including mould drawings.
• Support engineering to develop standard procedures for mould design.

Skills

Strong knowledge of CAD software (e.g., AutoCAD, SolidWorks)

Problem solving skills

Understanding of materials science

Education

Bachelor’s degree in mechanical engineering or related field

Tools

Mould flow simulation software

Job description

Country: United Kingdom
City: Peterborough
Req ID: 517041
Job Type: Full Time
Workplace Type: Onsite
Seniority Level: Associate

About Cubis Systems

Cubis Systems is a global leader in the design, engineering and manufacture of network access products for the infrastructure, utility and construction markets. Headquartered in Northern Ireland, Cubis is part of the €27 billion CRH Group and operates from multiple sites across the UK and Ireland, exporting to over 30 countries worldwide.

Our market‑leading brands, Cubis Systems, NAL, and FILOform, supply smart, safe, and sustainable product solutions to a range of construction sectors. Through innovation, we enable construction partners to optimise efficiency and safety through pioneering products designed for simplicity, speed, and reliability.

We stand together to reinvent the way our world is built through collaboration on breakthrough ideas that achieve tomorrow’s solutions today.

Business Overview

Join a high‑growth, global business with over £200m+ in revenue, operating across the UK, Ireland, Netherlands, France, and Germany. We specialise in manufacturing solutions that simplify complex infrastructure projects, providing innovative and sustainable products to international clients.

Our market‑leading brands—Cubis Systems, NAL, and FILOform—offer smart, safe, and sustainable solutions across various construction sectors. Through innovation, we empower our partners to enhance efficiency and safety with pioneering products designed for simplicity, speed, and reliability.

Together, we are transforming the way our world is built, collaborating on breakthrough ideas that deliver tomorrow's solutions today.

Position: Mould Engineer

Reports to: Process Engineering Manager

Role Overview: The Mould Engineer is responsible for the design development, testing, and maintenance of moulds and tooling used in the manufacturing processes. This role ensures moulds operate efficiently, reliably, and meet product quality standards, while driving improvements in mould performance, cycle time, and cost effectiveness. The successful candidate will have the following responsibilities:

Key Accountabilities:

• Oversee the design of new moulds (in partnership with supplier) or modify existing moulds based on product requirements and specifications
• Select appropriate materials and manufacturing methods for mould construction
• Prepare technical documentation including mould drawings, specifications, and maintenance reports.
• Ensure all moulds meet company and industry quality standards
• Support engineering to develop standard procedures and best practices relating to mould design and tooling introductions
• Introduce new techniques and technologies to improve efficiency and extend mould life
• A cross‑functional team is responsible for the delivery of NPI – this role will be accountable for the tooling aspects of NPI and will require project management activities to control the tooling delivery
• All tooling replacements are managed within a stage gate process
• Contribution towards the DIOPQ (Design, Installation, Operational and Performance Qualification) of tooling – verification of tool design pre‑shipment. This role is responsible for design qualification and will be a key contributor to the remaining qualification gates
• Shop floor presence during IQ/OQ/PQ to provide SME advice to optimisation yield/weight/cycle time
• Liaise with international toolmakers—particularly in China—to review, challenge, and refine tool designs for quality, cost‑effectiveness, and manufacturability
• Provide SME advice on PPM activities and assist to resolve mould‑related issues/breakdowns such as wear, flashing, leakage, or dimensional deviations
• Work closely with the quality team to address defects or non‑conformances

Associated Responsibilities:

• Work with suppliers, toolmakers, and external vendors on mould fabrication and repairs including tooling tender packs
• Collaborate with product design and manufacturing teams as SME (Subject matter expert) in tool design
• Contribute to training plans for production and maintenance teams on proper mould handling care
• Support continuous improvement initiatives within the production environment

Experience and Training:

• Strong knowledge of CAD software (e.g., AutoCAD, SolidWorks) and use of PDM. Mould flow simulation is desirable
• Understanding of materials science, machining processes, and mould manufacturing methods with a focus on industry best practices for injection moulding and compression moulding
• Problem solving skills with the ability to troubleshoot complex technical issues
• Desirable to have experience with lean manufacturing, Six Sigma, or other continuous improvement methods preferred
• This role requires a high level of team ethos to work with procurement, suppliers, design engineering & operations
• Bachelor’s degree in mechanical engineering, material engineering or related field
• 3+ years’ experience in one or more of low pressure / high pressure injection moulding / compression moulding
• Proven experience with thermoplastic / thermosetting tool moulding processes
• Ensures accountability
• Action orientated
• Business insight
• Cultivates innovation
• Nimble learning
• Plans and aligns

*Note: This list is not exhaustive and may be updated based on business needs. Flexibility and adaptability are key aspects of this role.

Location:

To be based at Tallington (GB) or Stoke (GB) site. Locality to these main tooling sites will reduce the travel required in the role. The role may also require travel to other sites as the business grows/develops. There may an occasional requirement to witness FAT testing (typically in China) for high risk / high value projects.

How To Apply

Interested candidates should submit their applications to [e-mail] by Thursday 27th November 2025.

Cubis Systems is an equal opportunity employer, which values differences in our people. We welcome applicants from diverse backgrounds, and we provide equality through our career development opportunities regardless of race, gender, sexual orientation, religious beliefs, nationality, age, and disability.

About CRH

CRH (NYSE: CRH, LSE: CRH) is the leading provider of building materials solutions that build, connect and improve our world. Employing c.78,500 people at c.3,390 operating locations in 28 countries, CRH has market leadership positions in both North America and Europe. As the essential partner for transportation and critical utility infrastructure projects, complex non-residential construction and outdoor living solutions, CRH’s unique offering of materials, products and value‑added services helps to deliver a more resilient and sustainable built environment. The company is ranked among sector leaders by Environmental, Social and Governance (ESG) rating agencies. A Fortune 500 company, CRH’s shares are listed on the NYSE and LSE.

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