Full-Time

Business Planner 2

Cost Planning Section, English-Japanese Bilingual

Posted on 8/21/2025

Sumitomo Electric Wiring Systems

Sumitomo Electric Wiring Systems

1,001-5,000 employees

Supplier of automotive electrical systems.

No salary listed

Southfield, MI, USA

Hybrid

Three days in-office per week required.

Category
Accounting (2)
,
Required Skills
Management
Excel/Numbers/Sheets
Requirements
  • Bachelor's Degree in Business Administration or similar fields
  • 3-5 years progressive professional business accounting/finance experience
  • Prior experience in auto parts industry or manufacturing is a plus
  • Working experience at global/international corporation is a plus
  • Excellent oral and written communication in English
  • Above average Microsoft Excel skills
  • Able to speak/write in Japanese
Responsibilities
  • Quote auto wiring harness cost in each developing phase.
  • Accurately register components/wire cost into our Cost Accounting System.
  • Inquire quotes and cost registration to other departments.
  • Implement cost reduction activities with wire harness business department within SEWS and with parent companies in Japan (SEI/SWS) and sister companies (group companies located mainly in Southeast Asia).
  • Keep track of profitability of wire harness business department and make analysis/report to management including parent companies.
  • Develop and maintain product standard cost for material and finished goods in SEWS’ proprietary Cost Accounting System.
  • Other duties assigned by management, including works with other departments.
  • All other duties as assigned.
Desired Qualifications
  • None
Sumitomo Electric Wiring Systems

Sumitomo Electric Wiring Systems

View

Sumitomo Electric Wiring Systems (SEWS) makes electrical systems for cars. Its products include electrical distribution systems, components, and electronics that help power and control a vehicle’s electrical functions. These parts are designed to be installed in vehicles to manage power flow, sensors, and other electronic systems so cars run reliably. SEWS differentiates itself through a long, trusted brand name from Sumitomo Electric Industries and a focus on quality, on-time delivery, and cost competitiveness, backed by safety and a strong global parent company. The company aims to supply high-quality electrical systems to the automotive industry and support the development of intelligent, connected cars.

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

N/A

Headquarters

Newcastle upon Tyne, United Kingdom

Founded

1986

Simplify Jobs

Simplify's Take

What believers are saying

  • Grid interconnection demand drives HVDC cable adoption across continents.
  • EV transition requires specialized high-voltage components SEWS manufactures.
  • EUR 500 million Corridor A-Nord contract validates technology leadership.

What critics are saying

  • Aptiv's 40% lighter aluminum harnesses displace SEWS copper designs.
  • Yazaki captures 15% more GM contracts via Mexico cost advantage.
  • Zonal architecture mandates reduce traditional copper harness market 25% by 2027.

What makes Sumitomo Electric Wiring Systems unique

  • 525 kV XLPE HVDC cable system installed in Germany Corridor A-Nord project.
  • Integrated high-voltage connectors, harnesses, and junction boxes for EV platforms.
  • Tripartite automotive structure: sales, design-manufacturing, and dedicated R&D divisions.

Help us improve and share your feedback! Did you find this helpful?

Your Connections

People at Sumitomo Electric Wiring Systems who can refer or advise you

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

401(k) Retirement Plan

Paid Vacation

Paid Holidays

Hybrid Work Options

Tuition Reimbursement

INACTIVE