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Lake Forest, California, United States
Onsite
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.
About Us
Trensor is a global technology leader serving both automotive OEM and aftermarket customers through innovative sensing, electromechanical, and vehicle system solutions. Since its founding, Trensor has grown into a trusted supplier to global automakers, Tier 1 suppliers, and leading aftermarket brands. Leveraging deep OEM engineering expertise, vertical integration, intelligent design, and proprietary technologies, Trensor delivers OE-quality products with exceptional reliability, performance, and value. Today, Trensor is one of the industry's leading suppliers of sensors, measurement devices, and automotive electronics, supporting customers across North America and global markets. Trensor is a Marmon Holdings/Berkshire Hathaway company.
Position Summary
Trensor is seeking a highly motivated Senior Mechanical / Electromechanical Engineer to lead product development, validation, and continuous improvement activities for an expanding portfolio of fuel pumps, fuel delivery systems, electronic sensors, solenoids, relays, pressure switches, and vehicle electrical switching products.
This role combines hands-on engineering, technical leadership, supplier collaboration, and new product development responsibility. The successful candidate will serve as a subject matter expert in electromechanical automotive products, bridging mechanical, electrical, manufacturing, quality, and commercial functions to deliver OE-quality aftermarket solutions.
What We Need
Product Development & Engineering
Lead and support new product introduction (NPI/NPD) for fuel pumps, fuel modules, sensors, electrical switches, relays, solenoids, and related electromechanical components.
Evaluate OE designs and competitive products through reverse engineering, benchmarking, and technical analysis.
Develop product specifications, engineering requirements, and performance criteria.
Drive design reviews, engineering changes, and product improvement initiatives.
Validation & Technical Analysis
Develop and execute validation plans, DVP&R activities, and performance testing protocols.
Perform functional, durability, environmental, vibration, thermal, electrical cycling, pressure, flow, and contamination testing.
Conduct root cause analysis, failure investigations, and corrective action development for product and field issues.
Define specifications for internal test equipment, fixtures, tooling, and validation systems.
Supplier & Manufacturing Support
Partner with global suppliers and contract manufacturers to review product designs, tooling, manufacturing processes, and production readiness.
Support PPAP, DV/PV testing, launch readiness, and ongoing quality improvement initiatives.
Ensure design feasibility, manufacturability, reliability, and cost competitiveness.
Collaborate with Quality and Supply Chain teams to maintain supplier performance and product consistency.
Technical Leadership
Serve as the engineering subject matter expert for fuel system and electromechanical product categories.
Provide technical support during customer meetings, product reviews, application discussions, and issue resolution activities.
Translate complex technical concepts into practical business and customer solutions.
Support catalog, product management, marketing, and sales teams with technical specifications, product attributes, fitment information, and competitive positioning.
Lifecycle Management & Continuous Improvement
Support products throughout their lifecycle, including launch, commercialization, field performance monitoring, and redesign initiatives.
Identify product line expansion opportunities and emerging technologies within fuel delivery, sensing, and switching systems.
Drive cost optimization, reliability improvements, and engineering best practices.
Ensure compliance with applicable SAE, ISO, IATF 16949, RoHS, REACH, and internal engineering standards.
What You'll Need
Bachelor's degree in Mechanical Engineering, Electromechanical Engineering, Mechatronics Engineering, Electrical Engineering, or related field.
7+ years of automotive product development experience involving fuel systems, sensors, switches, or other electromechanical assemblies.
Strong understanding of:
Fuel delivery systems and fuel pump technologies
Electronic sensors and signal output devices
Electrical switches, relays, and solenoids
Mechanical design, sealing, wear, durability, and vibration
Electrical circuit behavior and component interaction
Experience with DFMEA, PFMEA, DVP&R, PPAP, DV/PV validation, and APQP processes.
Hands-on experience with laboratory testing and validation equipment.
Proficiency interpreting engineering drawings, specifications, CAD models, and manufacturing tolerances.
Strong analytical, troubleshooting, project management, and communication skills.
Experience working with international suppliers and global manufacturing organizations preferred.
What Success Looks Like
Consistently delivers OE-quality products that meet customer expectations for performance, reliability, and durability.
Drives technically sound product launches on schedule.
Acts as a trusted engineering resource across product management, quality, supply chain, and commercial teams.
Identifies innovative product opportunities that expand Trensor's leadership position in the automotive aftermarket.
Pay Range:
144,000.00 - 216,000.00We 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 careers@marmon.com, and please be sure to include the title and the location of the position for which you are applying.