Process Engineer Lead (Injection Moulding)

Spirax-Sarco Ltd.; Havant; Hybrid; GBP 65,000 - 90,000; Full time

Benefits offered by this job

Competitive salary

Flexible working arrangements

Generous holiday allowance

Volunteering leave

Inclusion plan benefits

Job summary

Spirax-Sarco Ltd. in Havant is seeking an experienced Senior/Lead Injection Moulding Engineer to provide technical leadership across injection moulding, polymer processing, tooling and new product introduction.

You will develop and optimise moulding processes, troubleshoot tooling and processing issues, and work closely with toolmakers to deliver robust tooling and repeatable manufacturing. The role offers hybrid working, opportunities to mentor engineers, and a path to drive key NPI projects

Qualifications

• Extensive injection moulding process development and troubleshooting experience.
• Deep knowledge of polymer materials and their processing characteristics.
• Experience collaborating with mould toolmakers on new tooling.
• Able to optimise moulding processes to meet specs.
• Knowledge of mould tool design, gating, cooling, venting, ejection, shrinkage, warpage.
• Experience supporting new product introductions and production handover.
• Strong problem-solving and root-cause analysis skills.
• Excellent communication with internal teams and suppliers.
• Experience with CAD models and drawings; SolidWorks is a plus.

Responsibilities

• Lead injection moulding process development, optimisation, troubleshooting, and validation.
• Fine-tune moulding parameters to meet specs.
• Provide expert support on polymer selection and processing.
• Work with mould toolmakers on new designs and modifications.
• Support new product introduction from concept to production.
• Diagnose and resolve moulding defects, tooling issues and process instability.
• Establish robust process windows and capability improvements.
• Review tooling designs and advise on gating, cooling, venting, ejection, and manufacturability.
• Support validation, quality investigations, root cause analysis, and continuous improvement.
• Define gauging concepts for critical moulded features and interfaces.
• Support design and validation of dedicated inspection fixtures and gauges.
• Coordinate with gauge suppliers for robust gauging solutions.
• Support gauge repeatability and reproducibility studies.
• Ensure gauging strategies align with mould trials, process validation, and quality control.
• Mentor engineers and technicians in best practice injection moulding and tooling.

Skills

Injection moulding

Polymer processing

Tooling collaboration

Process optimization

Mould tooling

Root cause analysis

CAD/SolidWorks

Communication

Tools

SolidWorks

Job description

Job Title: Process Engineer Lead (Injection Moulding)
Location: BioPure - UK - Havant
Location Type: Hybrid
Website: https://www.wmfts.com/en/
Group: https://www.spiraxgroup.com/

Watson-Marlow Fluid Technology Solutions is part of SpiraxGroup, a FTSE100 and FTSE4Good multi-national industrial engineering Groupwith expertise in the control and management of steam, electric thermalsolutions, peristaltic pumping and associated fluid technologies.
When you join us, you will be integrated into a cooperative and encouragingteam, participate in challenging yet critical work, and experience ongoinggrowth opportunities to help you achieve your full potential. Visit ourwebsite to learn more.

Key Responsibilities:

We are looking for an experiencedSenior/ Lead Injection Moulding Engineer to join our engineering team and provide specialist technical leadership across injection moulding, polymerprocessing, tooling, and new product introduction.
This role would suit a highly experienced moulding engineer with strong hands-on process knowledge, deep understanding ofpolymers, and proven experience working closely with mould toolmakers todeliver robust tooling and repeatable manufacturing processes.

You will play a key role in developing andoptimising moulding processes, resolving tooling and processing issues,supporting new product development, and ensuring moulded componentsconsistently meet demanding product specifications.
Youwill be a key player in our Fluid Path NPI team and help us drive forward ourambitious goals. The core function of Watson-Marlow’s NPI teams is to delivernew products to market. Fluid Path NPIalso acts as a custodian of design intent for existing Fluid Path products andmust authorize any changes to product or manufacturing processes.

Key accountabilities include:

• Lead injection moulding process development, optimisation, troubleshooting, and validation.
• Fine tune moulding parameters to achieve dimensional, functional, visual, and mechanical product specifications.
• Provide expert support on polymer selection, material behaviour, and processing characteristics.
• Work closely with mould toolmakers on new mould design, tool trials, modifications, and issue resolution.
• Support new product introduction from design concept through to production release.
• Diagnose and resolve moulding defects, tooling issues, material concerns, and process instability.
• Establish robust process windows and support capability improvement.
• Review tooling designs and provide input on gating, cooling, venting, ejection, parting lines, and manufacturability.
• Support validation, quality investigations, root cause analysis, and continuous improvement activity.
• Define gauging concepts for critical moulded features and product interfaces.
• Support the design, specification, validation, and implementation of dedicated inspection fixtures and functional gauges.
• Work with internal or external gauge suppliers to develop robust and repeatable gauging solutions.
• Support gauge repeatability and reproducibility studies.
• Ensure gauging strategies are suitable for; Mould trial evaluation, Process validation and production quality control.
• Ensure metrology and gauging outputs are clearly linked to product specifications and control plans.
• Mentor engineers and technicians in best practice injection moulding and tooling principles.

Skills/Experience:

• Extensive injection moulding process development and troubleshooting experience.
• Strong knowledge of polymer materials and their processing characteristics.
• Experience working with mould toolmakers on new tools, tool modifications, and tooling issue resolution.
• Proven ability to optimise moulding processes to meet demanding product specifications.
• Good understanding of mould tool design, gating, cooling, venting, ejection, shrinkage, and warpage.
• Experience supporting new product introduction and production handover.
• Strong structured problem-solving and root cause analysis skills.
• Excellent communication skills with internal teams and external suppliers.
• Proven experience of working with product drawings and tooling drawings and models within a CAD environment.
• Experience with SolidWorks is advantageous.

Desirable:

• Experience in medical device, life sciences, pharmaceutical, food contact, automotive, aerospace, or other regulated/high-precision sectors.
• Experience with process validation, IQ/OQ/PQ, FMEA, control plans, and capability studies.
• Experience with cleanroom moulding, high-performance polymers, over-moulding, insert moulding, or multi-cavity tooling.
• Formal training in scientific moulding, polymer science, toolmaking, or plastics engineering.
• Experience with statistical process control, capability analysis, and measurement system understanding.
• Formal training in Lean Six Sigma, or equivalent would be advantageous.

At Watson-Marlow, we believe in takingcare of our colleagues. We offer a generous benefits package,including:

• A competitive salary
• Flexible working arrangements
• A generous holiday allowance
• Three days’ paid volunteering leave
• Additional support and benefits through our Everyone is Included GroupInclusion Plan

Everyone is Included at Spirax Group

We are passionate about creating inclusive andequitable working cultures where everyone can be themselves and achieve theirfull potential. For us, that means supportive teams and strong relationshipswhere everyone’s contribution is valued - across social and culturalbackgrounds, ethnicities, ages, genders, gender identities, abilities,neurodiversity, sexual orientation, religious beliefs, and everything elsethat makes us human and unique.
We want everyone to be able to make their difference here, so we willalways consider requests for flexible working.
We know that everyone needs some extra help from time to time too, so wehave introduced a range of additional benefits through our Group InclusionCommitments. These include

• Gender-neutral parental leave
• 15 days of extra paid caregiver leave
• Paid time off and support for anyone experiencing pregnancy loss ordomestic abuse
• Menopause-friendly workplace principles and more

Learn more at spiraxgroup.com/inclusion.

We are also a Disability Confident Committed Employer. Ifyou would like to apply using this scheme, please select this option in ourapplication form.
We are an equal opportunity employer committed to fostering an inclusiveand diverse workplace. We encourage candidates from all backgrounds toapply.
If you require accommodations during the application process, please let usknow.

Company Overview

At Watson-Marlow Fluid Technology Solutions, part of Spirax Group, we aredriven by innovation and are dedicated to creating an inclusive workplacewhere everyone is empowered to make a difference. As a world leader inmanufacturing peristaltic pumps and associated fluid path technologies forthe life sciences and process industries, we offer a wide range of products,including tubing, specialised filling systems and products for single-useapplications.
Our shared Purpose is to create sustainable value for all our stakeholdersas we engineer a more efficient, safer and sustainable world. Ourtechnologies play an essential role in critical industrial processes andindustrial equipment across industries as diverse as Food & Beverage,Pharmaceutical & Biotechnology, Power Generation, Semiconductors andHealthcare. With customers in 116 countries, we provide the solutions thatsit behind the production of many items used in daily life, from baked beansto mobile phones!
Our inclusive culture and Values, unites us, guides our decisions andinspires us everywhere that we operate. We support our colleagues to maketheir difference for each other as well as customers, communities, suppliers,our planet and shareholders by creating a truly equitable working environmentwhere everyone feels included.