Custom Part Designer

DuPont Technology (Shanghai) Co., Ltd.

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Chiyoda-ku, Tokyo Until 8/23/2026 First posted May 22, 2026 Last posted May 22, 2026
Job description

Are you looking to power the next leap in the exciting world of advanced electronics? Do you want to help solve problems that drive success in the rapidly evolving technology and connectivity landscape? Then bring your problem-solving, passion, and creativity to help us power the next leap in electronics.

At Qnity, we’re more than a global leader in materials and solutions for advanced electronics and high-tech industries – we’re a tight-knit team that is motivated by new possibilities, and always up for a challenge. All our dedicated teams contribute to making cutting-edge technology possible. We value forward-thinking challengers, boundary-pushers, and diverse perspectives across all our departments, because we know we play a critical role in the world enabling faster progress for all. Learn how you can start or jumpstart your career with us.

Job Purpose

The Custom Part Designer is responsible for transforming customer requirements into manufacturable, high‑performance Kalrez® sealing solutions. This role encompasses concept design, manufacturability assessment, tooling design, prototype support, and production-scale readiness.

 

Key Responsibilities

- Design custom sealing components based on customer requirements, ensuring manufacturability and performance alignment.

- Evaluate manufacturability of new and complex geometries and recommend design optimizations when needed.

- Create production drawings , including dimensions, tolerances, and internal specification alignment.

- Develop prototype tooling and mold designs to support early‑stage development and internal prototyping activities.

- Improve existing products by analyzing issues and implementing corrective design modifications.

- Collaborate across internal functions to support smooth industrialization and scale‑up.

- Maintain organized engineering data in CAD systems and manage a high volume of design tasks efficiently.

 

Qualifications

 

Required

- BS or MS in Mechanical Engineering, Materials Science, or related discipline.

- Proficiency with 3D CAD tools (SolidWorks; Creo).

- Strong technical drawing interpretation and creation skills.

- Solid English communication for global collaboration.

- High sense of urgency, ownership, and ability to manage multiple concurrent design tasks.

- Demonstrated teamwork and cross-functional collaboration ability.

 

Preferred

- Experience in elastomeric component design or rubber processing (molding, tooling, shrinkage, tolerances).

- Knowledge of Semiconductor, Chemical Processing, or Life Sciences applications.

- Experience working with manufacturers and customer approval workflows.

- Ability and willingness to travel independently (~30%).

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Qnity is an equal opportunity employer. Qualified applicants will be considered without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability or any other protected class. If you need a reasonable accommodation to search or apply for a position, please visit our Accessibility Page for Contact Information.

Qnity offers a comprehensive pay and benefits package. To learn more visit the Compensation and Benefits page.

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About this role

Summary

Design custom sealing components, evaluate manufacturability, develop prototypes, and collaborate across functions.

Job title

Custom Part Designer

Experience level

Industry

electronics

Location requirements

Chiyoda-ku, Tokyo; remote work not indicated

Salary

Not specified

Management role

No

Skills & keywords

Required skills

3D CADSolidWorksCreotechnical drawingEnglish

Preferred skills

elastomeric component designrubber processingmoldingtolerancesmanufacturer collaboration

Specializations

designmanufacturabilityCADtoolingprototyping
Locations

Structured locations inferred from the posting.

Chiyoda City, Tokyo, Japan

On-site City