Product Development Engineer

As a part of the global industrial organization Marmon Holdings—which is backed by Berkshire Hathaway—you’ll be doing things that matter, leading at every level, and winning a better way. We’re committed to making a positive impact on the world, providing you with diverse learning and working opportunities, and fostering a culture where everyone’s empowered to be their best.

Trensor is a global leader in vehicle electronics, leveraging proprietary technologies to deliver high-quality components for OEM and aftermarket applications. The company’s products power a wide range of automotive and industrial systems, built with a commitment to durability, innovation, and performance to meet the demands of today’s global markets.

Position Summary

We are seeking a Product Development Engineer with proven experience in mechatronics or electromechanical systems to support and advance our expanding portfolio of vehicle electronic components. This role blends hands-on engineering with technical leadership supporting new product introductions, driving validation and analysis, advancing R&D initiatives, and serving as a technical partner to our commercial teams. This successful candidate will bridge mechanical and electrical disciplines to ensure products meet rigorous OE-level performance standards while remaining commercially competitive.

This position is based onsite at our Foothill Ranch, CA facility to support hands-on product work and team collaboration.

Key Responsibilities

• Support new product development across our portfolio, including solenoids, sensors, pressure switches, relays, HMI cockpit switches, fuel pumps and other categories.
• Execute design validation, functional and performance testing, and failure/root-cause analysis on electromechanical systems.
• Collaborate with global suppliers and contract manufacturers to review designs, drawings, specifications, and tooling readiness.
• Develop and maintain test plans, validation protocols, and engineering documentation.
• Provide technical expertise to the commercial organization during customer meetings, presentations, and issue resolution.
• Collaborate with supply chain and quality teams to ensure supplier capability, PPAP readiness, and adherence to engineering standards.
• Benchmark competitive products to identify design improvements, failure modes, and innovation opportunities.
• Provide technical input to catalog, data, and marketing teams (e.g., specifications, connector details, electrical performance).
• Ensure compliance with industry standards (SAE, ISO, IATF, RoHS, REACH) and internal engineering practices.

Qualifications

• Bachelor’s degree in Mechatronics, Electromechanical, Electrical, or Mechanical Engineering with cross-disciplinary experience.
• 3–7 years of demonstrated experience in product development, validation, or applied R&D, preferably within automotive, or electromechanical components.
• Solid understanding of both electrical and mechanical principles, including circuit behavior, actuation, sealing, wear, and durability.
• Hands-on proficiency with validation equipment (e.g., thermal chambers, vibration rigs, load frames, electrical cycling).
• Strong background in CAD, design analysis, DFMEA, DVP&R, and related processes.
• Proven problem-solving, analytical, and project management skills with the ability to communicate and collaborate effectively with engineering, quality, supply chain, product development, marketing, and commercial teams.
• Experience working with global manufacturing and supply chain environments is a plus.
• Ability to work onsite at our Foothill Ranch, CA facility.

Why Join Us

• Take on a high-impact engineering role with visibility across a fast-growing, multi-site organization.
• Work on a diverse portfolio of high-volume, OE-quality automotive products where mechanical and electrical systems converge.
• Collaborate closely with cross-functional teams in engineering, product development, quality, cataloging, and commercial functions.
• Play a direct role in driving innovation, product reliability, and technical excellence that earns our customers’ trust.

Compensation & Benefits

• Comprehensive benefits package, including health, dental, vision, 401(k) match, and paid time off.