Sr. Molding Engineer; LSR and HCR

Home >
Sr. Molding Engineer (LSR and HCR)

BH Job

Ingersoll Rand is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances.

Location: Lincolnshire, IL

Imagine a company with technology leadership of over 160 years, yet it operates with the energy of a startup. Ingersoll Rand has dedicated itself to Making Life Better for its employees, customers, shareholders, and planets. We produce innovative and mission-critical flow creation and life science technologies – from compressors to precision handling of liquids, gasses, and powers – to increase industrial productivity, efficiency, and sustainability.

Supported by over 80+ brands, our products are used in various end-markets including life sciences, food and beverage, clean energy, industrial manufacturing, infrastructure, and more. Across the globe, we’re driving growth with an entrepreneurial spirit and ownership mindset. Learn more at  and join us to own your future.

The Molding Engineer is responsible for the development, optimization and sustaining robust molding processes for liquid silicone rubber ( LSR) and high consistency rubber ( HCR) utilizing injection, transfer and compression molding processes.

The Molding Engineer plays a key role in driving process capability, optimizing cycle times, reducing scrap, troubleshooting production issues and ensuring stable manufacturing performance across all molding work centers.

The Molding Engineer collaborates closely with the Tooling, Production, Quality, NPIand Maintenance teams to ensure successful product launches, consistent quality and efficient manufacturing processes.

• Develop, validate, and optimize LSRand HCRmolding processes (injection, compression, transfer) using scientific moldingprinciples and DOEmethodologies.
• Establish robust process parameters, including injection/fill profiles, pack/hold strategies, cure cycles, and thermal controls to improve capability (Cp/Cpk) and reduce variation.
• Troubleshoot complex moldingdefects (flash, short shots, voids, knit lines, shrinkage, dimensional variation, and cure issues) using structured root cause analysis and corrective actions.
• Partner with tooling and maintenance teams to qualify molds, optimize gate/vent designs, improve thermal management, and ensure validated equipment performance.
• Drive continuous improvement initiatives focused on cycle time reduction, scrap minimization, OEE improvement, material yield optimization, and Lean/Kaizen implementation.
• Support New Product Introduction(NPIPthrough feasibility assessments, moldtrials, process qualification, production launch, and transition to manufacturing).
• Develop and maintain process documentation, standardized parameter sheets, work instructions, and SPC-based process monitoring while training operators and technicians on best practices.
• Collaborate cross-functionally with Engineering, Production, Quality, and Estimating teams to improve manufacturability, manage process changes, and ensure quality, customer, and business objectives are achieved.

• Bachelor’s degree in an Engineering ( Mechanical, Manufacturing, Materials, Plastics, Polymer)
• 5+ years’ direct experience in siliconeand/or rubber molding

• Liquid…