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Sumitomo Electric

# Contract Business Planning Assistant (Japanese-English Bilingual)

On-site Part-time Administrative 

Listed on Sumitomo Electric’s official careers site. Posted September 16, 2026. Check that it is still open and apply there.

[OpenNash Jobs](https://jobs.opennash.com/) / [Sumitomo Electric](https://jobs.opennash.com/companies/sumitomo-electric/) / Contract Business Planning Assistant (Japanese-English Bilingual)

## Job description

### Job Title

Contract Business Planning Assistant Work Location: SEWS - Farmington Hills, Michigan (On-site position) This is a contract, hourly-paid position requiring approximately 20 hours of work per week.

### Basic Purpose

The contract associate will perform cost registration duties. Responsibilities currently performed by full-time employees will be transferred to the contractor to increase the efficiency and value of these operations.

### Job Duties and Responsibilities

Estimate the wire harness costs and provide support on this process. Confirm the costs of parts whose unit prices are unknown to the Procurement Department.

### Qualifications

Bachelor’s Degree in Accounting, Business Administration, or a suitable field. 1-3 years of business accounting/finance experience. Excellent skills in the use of personal computers (Excel, Word, PowerPoint, etc.) Advanced level Excel skills strongly preferred. Strong mathematical and analytical skills. Business level Japanese skills required (reading, speaking and writing). About Sumitomo Electric Wiring Systems, Inc. Sumitomo Electric Wiring Systems, Inc. (SEWS) is part of the Sumitomo family of companies, a 400 year old brand with a reputation for quality and reliability.

With the support of facilities throughout North America, SEWS has been delivering innovative solutions to automakers for over 30 years, and is a leading supplier of electrical distribution systems, components and electronics. SEWS is committed to technical development worldwide and with a global network of resources, is able to deliver a truly competitive advantage to each of our customers. To learn more about us, please visit www.sewsus.com.

### Follow Us on LinkedIn

[https://www.linkedin.com/company/sumitomo-electric-wiring-systems](https://www.linkedin.com/company/sumitomo-electric-wiring-systems) About the Sumitomo Electric Group Since the founding of Sumitomo Electric Industries, Ltd. in 1897 with copper wire production, we have developed many new technologies and products through innovative R&D activities based on Sumitomo Electric manufacturing technologies for electric wires and power cables. With more than 350 subsidiaries worldwide, we continue to introduce a wide variety of products that fulfill the expectations of society, in five business fields: Automotive, Information & Communications, Electronics, Environment & Energy, and Industrial Materials.

We are a Fortune global 500 company. To learn more about Sumitomo Electric Group, please visit [http://global-sei.com](http://global-sei.com).

[http://www.linkedin.com/company/sumitomo-electric](http://www.linkedin.com/company/sumitomo-electric) An Equal Opportunity Employer M/F/D / V

## At a glance
- Posted by the employer: Sep 16, 2026
- First seen by OpenNash: Oct 19, 2026
- Last checked: Oct 19, 2026
- Listed for: 33 days
- Work arrangement: On-site
- Employment type: Part-time

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