Senior Process Engineer - Plastics

Injection Moulding Process Engineer

Directly share in the success of a growing, innovative manufacturer

Take ownership of high-impact process engineering projects

Our client is a highly respected employee-owned manufacturing organisation known for its engineering excellence, innovation, and commitment to continuous improvement. The business partners with leading global organisations on complex, high-precision products and offers employees the opportunity to make a meaningful impact while developing long-term careers.

Job Description

• Develop, optimise, and troubleshoot injection moulding processes for new and existing products using scientific moulding principles.
• Lead mould sampling, process development, validation activities, and production launches.
• Analyse process data to improve product quality, efficiency, cycle times, and process capability.
• Collaborate closely with Quality teams to establish effective process controls and monitoring systems.
• Investigate and resolve issues relating to moulding processes, tooling, materials, automation, and equipment.
• Create and maintain process documentation, setup standards, work instructions, and validation records.
• Support the development and maintenance of PFMEAs, Control Plans, process flow documentation, and manufacturing standards.
• Participate in mould design reviews, print reviews, and material evaluations.
• Provide technical guidance on tooling, automation, equipment, and manufacturing process requirements.
• Design and execute DOE studies, process validations, and capability assessments.
• Drive continuous improvement initiatives focused on cost reduction, scrap reduction, productivity, and operational excellence.
• Support KPI reporting and analysis relating to efficiency, downtime, OEE, cycle time, scrap, and process capability.
• Act as a technical expert for troubleshooting production challenges and quality concerns.
• Mentor and develop Process Technicians, Setup Technicians, and Operations personnel on scientific moulding and process control methodologies

MPI does not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, disability, veteran status, marital status, or based on an individual's status in any group or class protected by applicable federal, state or local law. MPI encourages applications from minorities, women, the disabled, protected veterans and all other qualified applicants.

The Successful Applicant

• Bachelor's degree in Manufacturing, Mechanical, Plastics, Industrial Engineering, or a related discipline.
• 8+ years of process engineering experience within plastics manufacturing, including strong injection moulding expertise.
• Demonstrated experience developing, validating, optimising, and troubleshooting injection moulding processes.
• Strong understanding of scientific moulding, decoupled moulding, process windows, tooling, materials, and secondary operations.
• Experience with mould sampling, process validation, capability studies, root cause analysis, CAPA, and corrective action processes.
• Knowledge of Lean Manufacturing, Six Sigma, DOE, SPC, GD&T, PFMEA, and control plans.
• Experience working with ERP/MES systems and process data analysis tools.
• Strong communication, leadership, mentoring, project management, and problem-solving skills.
• Experience writing, reading, and interpreting technical engineering and manufacturing documentation.

Preferred Experience

• Experience within ISO 13485 or similarly regulated manufacturing environments.
• Familiarity with CAD software and process simulation tools.
• Experience with Moldflow, RJG/eDART, cavity pressure monitoring, or similar technologies.
• Background supporting medical devices, highly regulated products, or advanced manufacturing industries.
• Lean Six Sigma certification or advanced continuous improvement training

What's on Offer

• Employee ownership programme with a direct stake in company success.
• Opportunity to work on technically challenging and innovative manufacturing projects.
• Strong exposure to advanced injection moulding technologies and engineering best practices.
• Collaborative culture that values continuous improvement, innovation, and professional growth.
• Excellent opportunity to influence manufacturing performance, mentor others, and progress your engineering career

Job summary