Full-Time

Design Engineer 3

Components Design

Posted on 10/3/2025

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

Associates are required to work at least three days in the office each week.

Category
Mechanical Engineering (1)
Requirements
  • BS Degree in Mechanical Engineering or similar
  • 6+ years experience with 3D CAD systems (CATIA V5) is required
  • Bilingual (English/Japanese) capability is helpful for liaison work with Japanese parent company
  • Must be willing to travel for trial events and supplier audits
  • Some projects need regular communication with overseas contracts and it must be done during non-standard work hours.
Responsibilities
  • Use 3D CAD to develop components for Wiring Harness; requires ongoing packing studies to analyze vehicle fit, while maintaining required clearance from surrounding parts.
  • Create and check 2D drawings for developed parts using SEWS and Customer standards, and releasing those drawings for production according to the prepared development schedule.
  • Act as program lead where assigned. Maintain development schedules in accordance with customer project timing, and assuring that all milestones are met on time for program parts (monitor and advise junior team members).
  • Working with Wiring Harness engineers to assess the component needs and update the designs throughout the vehicle maturation process (includes both online and in-person meetings the latter of which may require visits to customer sites).
  • Request quotes via the Procurement team, assist in the supplier selection process, and kick-off of tooling for developed parts.
  • Work with Suppliers (concurrently with SQA Dept.) to resolve any design or quality issues with the developed components from tooling kickoff until mass production launch; includes visits to suppliers for production trials.
  • Work with engineers or Japanese parent company to facilitate tooling quotations, tool design sign off, and drawing submissions to customer.
  • Create and check DFMEA and DVP&R documents for developed parts, in accordance with the requirements of each customer.
  • Maintain the library of standards of each customer and of Sumitomo, in relation to the scope of parts to be developed, and following those standards.
  • Prepare test samples, coordination of testing of components as required for each customer, and present the results to the customer engineering sections.
Desired Qualifications
  • Experience with the development of injection-molded parts is preferred.
Sumitomo Electric Wiring Systems

Sumitomo Electric Wiring Systems

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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.

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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