New Product Engineer

MAC Incorporated

Santa Fe Springs (CA)

On-site

USD 85,000 - 100,000

Full time

5 days ago

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Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Life Insurance

401(k)

Vacation Time

Sick Time

End-of-Year Holiday Bonus

Job summary

MAC Incorporated in Santa Fe Springs, CA is seeking a New Product Manufacturing Development Engineer to bridge design and production. This 100% onsite role focuses on NPD, process development, and tooling to bring prototypes into robust manufacturing.

The ideal candidate has a bachelor’s in engineering, 5+ years in manufacturing, strong CAD skills, experience with elastomers/polymers, and hands-on mold/tooling collaboration. Onsite schedule Monday–Friday.

Qualifications

Bachelor’s degree in Engineering from a U.S. institution required.
5+ years of relevant manufacturing engineering experience preferred.
Strong New Product Development (NPD/NPI) experience.
Experience with material research, evaluation, and selection.
Experience with injection/compression molding strongly preferred.
Experience in rubber, elastomers, polymers, plastics, or composites preferred.
Experience developing molds, tooling, and production fixtures.

Responsibilities

Lead products from prototype through manufacturing launch.
Research materials and manufacturing processes for new products.
Develop elastomeric components using Silicone, LSR, Butyl, Nitrile, EPDM, FKM, TPEs.
Work with toolmakers to design, procure, test and validate molds.
Support mold design: gating, venting, material flow, cycle time.
Use 3D CAD to support molds, tooling, fixtures, equipment, and development.
Apply DOE and manufacturing process optimization techniques.
Troubleshoot flash, cure defects, shrinkage, dimensional variation, process consistency.
Develop and maintain PFMEAs, Control Plans, work instructions, IQ/OQ/PQ protocols.
Utilize SPC to monitor process capability and reduce variation.
Support production tooling, molds, fixtures, and equipment.
Collaborate with Engineering, Manufacturing, Quality, Tooling, and Customer Service.
Drive continuous improvement for quality, cost, manufacturability, cycle time, and productivity.

Skills

NPD/NPI

CAD

Material research

Molding

Tooling

Problem solving

Education

Bachelors in Engineering

Mechanical Eng preferred

Tools

SolidWorks

3D CAD

Minitab

SPC

DOE

Job description

New Product Engineer Santa Fe Springs, California
Job Ref: 41679

NEW PRODUCT MANUFACTURING DEVELOPMENT ENGINEER – SANTA FE SPRINGS, CA

MANUFACTURING COMPANY IN SANTA FE SPRINGS, CA IS LOOKING FOR A NEW PRODUCT MANUFACTURING DEVELOPMENT ENGINEER!

This is a 100% onsite, hands‑on engineering position with a smaller manufacturing organization of approximately 50 employees.

We are looking for an engineer with strong experience in New Product Development (NPD), manufacturing/process development, material research, CAD, and tooling. Candidates coming from rubber, polymers, plastics, composites, or related materials manufacturing are strongly preferred.

COMPENSATION & SCHEDULE

Salary: $85,000–$100,000 annually
Bonus: End‑of‑year holiday bonus
Schedule: Monday–Friday, 8:00 AM–5:00 PM
Location: Santa Fe Springs, CA – 100% ONSITE

Additional hours may occasionally be required depending on project demands.

MUST-HAVE REQUIREMENTS

Please review these requirements carefully before applying.

Bachelor’s degree in Engineering from a U.S. institution required. Mechanical Engineering strongly preferred.
U.S. citizenship required due to the company’s regulated government/defense‑related manufacturing environment.
CAD experience is required.
Must have experience with New Product Development / New Product Introduction and taking products from concept or prototype into manufacturing.
Must have material research/material selection experience.
Must come from a manufacturing background involving polymers, plastics, rubber/elastomers, composites, or metals. Rubber, polymer, plastics, and composites experience is most transferable.
Experience working directly with toolmakers and mold/tooling development is highly preferred.
Must demonstrate a stable employment history, ideally averaging at least 3–4 years with previous employers.
Must be genuinely interested in the position based on the career opportunity, responsibilities, location/commute, professional growth, or long‑term fit rather than compensation alone.
Must be comfortable working for a smaller, hands‑on manufacturing organization where engineers interact closely with production, quality, tooling, and leadership.

POSITION SUMMARY

The New Product Manufacturing Development Engineer will serve as the critical link between product design and manufacturing.

This individual will be responsible for transitioning new products and prototypes into robust, scalable, repeatable, and profitable manufacturing processes, with significant involvement in NPD/NPI, tooling, material research, process development, validation, and commercialization.

KEY RESPONSIBILITIES

Lead new products from prototype development through manufacturing launch and commercialization.
Research and evaluate materials and manufacturing processes for new product applications.
Develop manufacturing processes for elastomeric components utilizing materials such as:
- Silicone and Liquid Silicone Rubber (LSR)
- Butyl
- Nitrile / NBR
- EPDM
- FKM / Fluoroelastomers
- Thermoplastic elastomers
Work directly with toolmakers to design, procure, test, troubleshoot, and validate injection and compression molds.
Support mold design involving gating, venting, material flow, cycle time, and operator ergonomics.
Utilize 3D CAD/modeling software to support molds, tooling, fixtures, equipment, and manufacturing development.
Apply Design of Experiments (DOE) and scientific molding/process optimization techniques.
Troubleshoot manufacturing and molding issues involving flash, cure defects, shrinkage, dimensional variation, and process consistency.
Develop and validate processes capable of supporting reliable production volumes.
Develop and maintain PFMEAs, Control Plans, standardized work instructions, IQ/OQ/PQ protocols, and manufacturing documentation.
Utilize SPC and statistical analysis to monitor process capability and reduce manufacturing variation.
Support the development of production tooling, molds, fixtures, and manufacturing equipment.
Work closely with Engineering, Manufacturing, Quality, Tooling, and Customer Service.
Drive continuous improvement related to quality, cost, manufacturability, cycle time, and productivity.

QUALIFICATIONS

Bachelor’s degree in Engineering required; Mechanical Engineering preferred.
5+ years of relevant manufacturing engineering experience preferred.
Strong New Product Development (NPD/NPI) experience.
Experience conducting material research, evaluation, and selection.
Experience with injection molding and/or compression molding strongly preferred.
Experience in rubber, elastomers, polymers, plastics, or composites strongly preferred.
Metals manufacturing engineers may be considered if their experience is highly transferable.
Experience developing or supporting molds, tooling, and production fixtures.
Experience working directly with toolmakers highly preferred.
Knowledge of manufacturing processes including molding, CNC machining, assembly, and/or 3D printing.
Experience with DOE and manufacturing process optimization.
Experience developing PFMEAs, Control Plans, work instructions, and process documentation.
Knowledge of IQ/OQ/PQ validation.
Working knowledge of SPC and process capability analysis.
Experience with Minitab or similar statistical software is a plus.
Proficiency with 3D CAD software, such as SolidWorks or similar platforms.
Strong root‑cause analysis and manufacturing problem‑solving abilities.