Product Design Engineer| 製品設計エンジニア

Your Job

Product Design Engineer| 製品設計エンジニア |

Our Team

PSBU is working across the United States, India, Singapore, Shanghai, Japan, and Korea, fostering active technical collaboration and continuously striving to enhance our engineering capabilities. Our development efforts focus on customer‑driven connector solutions as well as wire‑to‑board and wire‑to‑wire connectors (2.5 mm pitch and more narrow) for the general market. While pursuing high performance, we also take on the challenge of miniaturization and high‑density design.

PSBU consists of three core functions: Engineering, Product Management, and Project Management. We place great value on teamwork—each function leverages its strengths, while also understanding and supporting one another to maximize overall contribution.

With the rapid expansion of AI and the resulting diversification of information, the market is demanding connectors with higher‑speed transmission and greater density. This has created significant opportunities for new product development, and we are currently expanding our team to meet these growing needs.

What You Will Do

The primary responsibility of this role is the design and development of connectors—particularly wire‑to‑board and wire‑to‑wire connectors—based on customer requirements.

Connector design and development

Leverage expertise in high‑speed signal transmission and mechanical engineering to interpret customer requirements and translate them into robust design specifications.

• Apply knowledge of electronic component manufacturing to ensure manufacturability, quality stability, and cost efficiency in the design.

• Conduct DFMEA, FEA, tolerance analysis, and other theoretical evaluations to validate designs and assess potential risks.

• Lead technical design reviews with cross‑functional project teams, including both domestic and international members, and provide technical leadership throughout development.

• Collaborate with manufacturing engineers and production sites worldwide to incorporate manufacturing feedback into the design.

• Work closely with project team members to meet schedule commitments and ensure timely product release.

• Engage in technical discussions with customers—both online and through on‑site visits—to support new product development.

Who You Are (Basic Qualifications)

Knowledge of high‑speed signal transmission performance and mechanical engineering relevant to connector design

• Understanding of connector manufacturing processes

• Hands‑on experience with 2D and 3D parametric CAD tools in a professional setting

• Knowledge of materials, with the ability to evaluate performance, cost, and manufacturability

• Ability to build respectful relationships and demonstrate strong teamwork

• Proficiency in reading technical documents in English and communicating via email

• Alignment with our PBM philosophy

• Japanese: Daily conversation level (JLPT N2 level)

• English: Business intermediate level

What Will Put You Ahead

• 5-10 years of connector design experience

• Ability to make independent decisions and negotiate with stakeholders

• Ability to speak and communicate in English

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.