Job Description

Location(s)

Yokohama, Kanagawa

Company

Molex

Career Field

Engineering

Job Number

187924

Your Job

As a Product Test Engineer you will be responsible for planning, coordinating, and executing electrical, mechanical, and environmental tests for automotive connectors. You will analyze test data, prepare reports in Japanese and English, and collaborate closely with development, quality, manufacturing, and global lab teams to ensure product reliability and compliance with customer and international standards.

Our Team

You will join the Transportation Solutions Execution Japan team within TIS (Transportation Innovative Solutions) Japan Connector Engineering, based in Yokohama (Minato Mirai).

Our team supports automotive connectivity solutions, working cross‑functionally and globally to enable high‑quality, innovative products for connected and autonomous vehicles.

What You Will Do

• Plan and arrange electrical, mechanical, and environmental testing for automotive connectors
• Develop test plans based on customer specifications and international standards
• Review and validate test fixtures and test methodologies
• Analyze test data and prepare test reports in Japanese and English
• Perform root cause analysis and propose countermeasures when issues are identified
• Collaborate with development, quality assurance, and manufacturing engineering teams
• Work closely with domestic and overseas laboratory teams

Who You Are (Basic Qualifications)

• Fundamental knowledge of electrical, electronic, or mechanical engineering
• Hands‑on evaluation/testing experience with connectors, harnesses, or electronic components
• Ability to analyze evaluation data using Excel and basic statistical methods
• Strong quality mindset with logical problem‑solving skills
• Education: Technical college or university graduate (Bachelor’s degree or higher), preferably in mechanical engineering
• Proactive, self‑driven, and able to lead tasks and resolve issues independently
• Collaborative team player who builds relationships with sincerity and respect
• Language skills:

○ Japanese: Native level

○ English: Business level

What Will Put You Ahead

• 3+ years of evaluation/testing experience with connectors, harnesses, or electronic components
• Experience in the automotive industry (testing, quality, or development)
• Knowledge of international standards and OEM specifications (e.g., USCAR, JASO)
• Familiarity with quality tools such as FMEA, 8D, and DRBFM
• Ability to communicate technically in English with global stakeholders

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.

Who We Are

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.

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.