Injection Molding Process Engineer

ZipRecruiter; Bristol; On-site; GBP 35,000 - 50,000; Full time

Job summary

Tri-Mack, a leader in high-temperature thermoplastic components, seeks an experienced Injection Molding Process Engineer in Bristol. This role involves optimizing injection molding processes to ensure quality and performance standards are met. Candidates should possess relevant engineering education and experience in an injection molding environment, with a focus on collaboration and continuous improvement.

Benefits

Medical, Dental, Vision & Life Insurance

Paid Holiday, Vacation & Sick/Safe Time

401(k) with Company Match

Tool Discount/Purchase Program

Tuition Reimbursement

Qualifications

• Experience in an injection molding manufacturing environment required.
• Proficient in blueprint and GD&T interpretation.
• Some experience with Lean and/or Six-Sigma.

Responsibilities

• Design, develop, and validate injection molding processes.
• Collaborate with tooling, materials, and quality teams.
• Monitor cycle times and scrap rates.

Skills

Analytical skills

Problem-solving skills

Communication

Attention to detail

Education

Bachelor’s degree in Engineering

Tools

SolidWorks

Microsoft Office Suite

Job description

Job DescriptionJob Description

Located in Bristol, Rhode Island for 50 years, Tri-Mack is a leading manufacturer of high-temperature thermoplastic components for the aerospace-defense, semiconductor, energy and medical industries. Our broad capabilities include collaborative engineering, tool making, injection molding, thermoplastic composite processing, multi-axis CNC machining, bonding and assembly, testing and quality control - all within a modern, environmentally controlled 60,000 sq. ft. facility. Our culture is based on values that promote respect, teamwork and accountability and we are committed to meeting customer requirements through our ISO 9001/AS9100 quality management system.

Position: Injection Molding Process Engineer

Summary:
We are seeking an experienced Process Engineer specializing in Injection Molding to support the development and production of high-performance plastic components. This role involves establishing, optimizing, and maintaining injection molding processes all while conforming to Tri-Mack quality and customer specifications.

Responsibilities& Accountabilities:

• Design, develop, and validate robust and repeatable injection molding processes for injection molding department.
• Work with Production Support, New Product Introduction (NPI) and Process Improvement (IMP) engineering groups to perform process optimization using manufacturing process sheets and scientific molding.
• Establish and maintain scientific molding parameters to ensure consistency, precision, and traceability; Monitor cycle times, scrap rates, and material usage.
• Collaborate with tooling, materials, and quality teams to ensure designs meet dimensional and performance requirements under AS9100 standards.
• Conduct root cause analysis and troubleshoot process issues (e.g., porosity, flash, short shots, burn marks).
• Implement process improvements to increase yield, reduce cycle times, and optimize part quality while meeting Tri-Mack standards.
• Interface with customers and internal stakeholders during technical reviews, audits, and qualification runs.
• Collaborate with the Injection Molding Supervisor to implement production process improvements.
• Provide daily technical support to resolve molding-related issues.
• Participate in daily MRB meetings to address non-conforming products.
• Drive cost-reduction efforts through material usage optimization and cycle time reduction.
• Support preventive maintenance activities for molds and related tooling.
• Evaluate mold performance and recommend repair or replacement strategies.
• Assist in the specification and procurement of new injection molding machines and auxiliary equipment.
• Generate technical reports on process performance, trial outcomes, and validations.
• Monitor safety continuously to ensure the safety of yourself as well as your co-workers.
• Adhere to all ISO 9001 and AS9100 requirements.
• Conduct yourself in an ethical and professional manner and always follow Tri-Mack Values: Respect, Teamwork, Integrity, Accountability and Durability.
• Assist with special projects and other duties as assigned.

Education, Skills & Experience:

• College degree in Engineering; Bachelor’s degree
• Experience in an injection molding manufacturing environment required
• Proficient in blueprint and inspection report interpretation; GD&T experience
• Proficient in mechanical inspection techniques including micrometer, dial caliper, optical comparator, drop indicators, and special quality fixturing
• Experience with CAD design, SolidWorks
• Proficient with Microsoft Office Suite
• Some experience with Lean and/or Six-Sigma
• Strong written and oral communication skills, analytical and problem-solving skills
• Excellent organizational and time management skills and strong attention to detail
• Flexible, work with a high sense of urgency, and able to get along well with others

Our Benefits:
We offer competitive salaries and generous benefits, including:

• Medical, Dental, Vision & Life Insurance
• Paid Holiday, Vacation & Sick/Safe Time
• 401(k) with Company Match
• Tool Discount/Purchase Program
• Tuition Reimbursement

If you are looking for an innovative, values-driven company where you can put your engineering aptitude and expertise to work, grow your career and take on ever-bigger challenges, you may just have found the place! We know our continued success is dependent upon our employees, which is why we are always on the lookout for reliable, knowledgeable and dynamic individuals with past success in a collaborative team setting, working with clear objectives and direction.

*Tri-Mack Plastics provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to , , , , , , , , protected veteran or disabled status or genetic information. Tri-Mack is a drug-free work environment. Pre-employment drug screening (excludes THC)and background checks are required.

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