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.

Who We Are

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. 

What You'll Do

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 ideally onsite at our Foothill Ranch, CA facility, but can be hybrid with 50% travel to CA 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.

What You'll Need

• 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.

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

• Competitive salary commensurate with experience (target range: $100K–$135K).

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

Pay Range:

We offer a comprehensive benefits package that may include medical, dental, vision, 401k matching, and more!

Following receipt of a conditional offer of employment, candidates will be required to complete additional job-related screening processes as permitted or required by applicable law.

We are an equal opportunity employer, and all applicants will be considered for employment without attention to their membership in any protected class. If you require any reasonable accommodation to complete your application or any part of the recruiting process, please email your request to [email protected], and please be sure to include the title and the location of the position for which you are applying.