Senior Product Design Engineer

Molex; Grand Blanc (MI); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Life insurance

Parental leave

Relocation assistance

Visa sponsorship

Job summary

Molex, a Koch company, is seeking a Senior Mechanical Engineer to own the mechanical design of automotive antenna products from concept through launch. You will translate complex customer requirements into manufacturable solutions and work directly with customers, suppliers, manufacturing teams, and engineers across disciplines.

You will stay close to the product through development, applying CAD, FEA, and analytical methods to deliver robust designs.

Qualifications

• 5+ years of experience in mechanical product design.
• Experience performing mechanical product design using NX or equivalent 3D CAD software.
• Experience supporting new product development from concept through design, validation, and manufacturing handoff.
• Hands‑on experience with injection molding, aluminum die casting, and elastomer materials used in electronic packaging.
• Bachelor's degree in Mechanical Engineering.

Responsibilities

• Lead mechanical product development from concept through manufacturing handoff, translating customer requirements into robust, manufacturable product designs.
• Serve as a customer-facing technical design partner, influencing design direction and leading technical design reviews while collaborating with suppliers, manufacturing teams, and cross-functional engineering partners.
• Share your technical expertise by mentoring and supporting team members, helping strengthen design practices, problem-solving capabilities, and engineering knowledge across the team.
• Create 3D CAD models and 2D drawings using NX CAD software and apply sound mechanical design principles throughout product development.
• Use Finite Element Analysis (FEA) and other analytical methods to evaluate structural, thermal, and vibration performance, troubleshoot validation failures, and optimize designs before tooling and production.
• Select and analyze materials and manufacturing processes, including injection-molded polymers and resins, die-cast and stamped metal components, elastomers, sealing, and fastening methods, to meet mechanical, environmental, performance, manufacturability, and cost requirements.
• Analyze test results, lead root-cause analysis of product failures, and perform statistical tolerance analysis to improve product performance, functional fit, manufacturability, and design robustness.
• Communicate analysis and design decisions through technical reports, presentations, and cross-functional design reviews.
• Travel up to 10% to customer and internal locations, including sites in Mexico and other U.S. locations, to support customer engagement, technical design reviews, product development, and cross-functional collaboration.

Skills

Mechanical product design

NX CAD software

Product development from concept to H&

Education

Bachelor's degree in Mechanical Engineering

Master's degree in Mechanical Engineering

Tools

NX CAD

ANSYS

ABAQUS

Altair HyperMesh

Teamcenter PLM

Job description

life insurance, parental leave, relocation assistance

United States, Michigan, Grand Blanc

Oct 25, 2026

Your Job

Own the mechanical design of automotive antenna products from concept through launch. As a Senior Mechanical Engineer, you'll have the opportunity to turn complex customer requirements into manufacturable products while working directly with customers, suppliers, manufacturing teams, and engineers across disciplines.

This is an opportunity to do more than own one piece of a design. You'll stay close to the product throughout its development, applying your mechanical design and analytical expertise to solve challenging problems, influence technical direction, and see your ideas move from CAD and analysis through validation and production.

Our Team

In the Connected Mobility Business Unit, our team develops automotive antenna products that support technologies such as 5G and hidden antennas for connected vehicles.

You'll work on a focused team supporting a broad product portfolio, giving you the opportunity for meaningful product ownership, technical influence, and autonomy. You'll collaborate with mechanical and electrical engineers, customers, suppliers, and manufacturing partners, providing visibility across the product lifecycle and a direct role in bringing designs to life.

What You Will Do

• Lead mechanical product development from concept through manufacturing handoff, translating customer requirements into robust, manufacturable product designs.
• Serve as a customer-facing technical design partner, influencing design direction and leading technical design reviews while collaborating with suppliers, manufacturing teams, and cross-functional engineering partners.
• Share your technical expertise by mentoring and supporting team members, helping strengthen design practices, problem-solving capabilities, and engineering knowledge across the team.
• Create 3D CAD models and 2D drawings using NX CAD software and apply sound mechanical design principles throughout product development.
• Use Finite Element Analysis (FEA) and other analytical methods to evaluate structural, thermal, and vibration performance, troubleshoot validation failures, and optimize designs before tooling and production.
• Select and analyze materials and manufacturing processes, including injection-molded polymers and resins, die-cast and stamped metal components, elastomers, sealing, and fastening methods, to meet mechanical, environmental, performance, manufacturability, and cost requirements.
• Analyze test results, lead root-cause analysis of product failures, and perform statistical tolerance analysis to improve product performance, functional fit, manufacturability, and design robustness.
• Communicate analysis and design decisions through technical reports, presentations, and cross-functional design reviews.
• Travel up to 10% to customer and internal locations, including sites in Mexico and other U.S. locations, to support customer engagement, technical design reviews, product development, and cross-functional collaboration.

Who You Are (Basic Qualifications)

• 5 or more years of experience in mechanical product design.
• Experience performing mechanical product design using NX or equivalent 3D CAD software.
• Experience supporting new product development from concept through design, validation, and manufacturing handoff.
• Hands‑on experience with processes including injection molding, aluminum die casting, and elastomer materials used in electronic packaging applications.
• Bachelor's degree in Mechanical Engineering.

What Will Put You Ahead

• 10 or more years of experience in mechanical product design.
• Automotive industry experience supporting GM or another automotive OEM, including experience interfacing directly with customers and participating in technical design reviews.
• Familiarity with automotive OEM product‑development processes and Teamcenter or a comparable PLM system.
• Experience performing mechanical and thermal FEA simulations using ANSYS and/or ABAQUS.
• Experience with Altair HyperMesh.
• Experience with vibration analysis and applying analytical methods to identify and resolve product performance issues.
• Experience serving as a mechanical design or mechanics‑of‑materials technical expert and guiding cross‑functional teams through complex engineering challenges.
• Master's degree in Mechanical Engineering.

At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.

Relocation assistance is available for this position. We are also open to providing employment visa sponsorship for qualified candidates who are currently located in the United States.

Hiring Philosophy

All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here.

Who We Are

As a Koch company, Molex is a leading supplier of connectors and interconnect components, driving innovation in electronics and supporting industries from automotive to health care and consumer to data communications. The thousands of innovators who work for Molex have made us a global electronics leader. Our experienced people, groundbreaking products and leading‑edge technologies help us deliver a wider array of solutions to more markets than ever before.

At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.

Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter.

Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.

Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E-Verify. Please click here for additional information. (For Illinois E-Verify information click here, aqui, or tu).