Full-Time
Application Engineer
Automotive High Speed Data Cables
Updated on 9/4/2026
Sumitomo Electric Wiring Systems
1,001-5,000 employees
Supplier of automotive electrical systems.
No salary listed
Farmington Hills, MI, USA
Hybrid
At least four days in the Farmington Hills office each week; periodic travel to customer, manufacturing, and test locations is required.
Bachelor's
 Electrical Engineering (1) |
|---|
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- A bachelor's degree in Electrical Engineering or an equivalent degree is required.
- Five to seven years of experience with automotive high-speed data cables is required.
- Good communication, time management, and interpersonal skills are required.
- Attend and lead internal and customer meetings related to high-speed data cables, including coaxial, Ethernet, A2B, and USB cables.
- Work with the internal design verification group to understand and establish required testing, and evaluate signal degradation caused by attenuation, reflections, crosstalk, skew, and discontinuities according to original equipment manufacturer specifications and test methods.
- Support request-for-quotation activities involving high-speed communication data cables while considering manufacturing equipment and capabilities.
- Work with the program team to define cable type, conductor size, shielding, insulation, and connector interfaces, and identify, track, and resolve open issues.
- Understand the requirements of high-speed automotive communication systems and apply knowledge of Automotive Ethernet, including 100BASE-T1, 1000BASE-T1, and higher-speed Ethernet architectures, to support the Ethernet cable business.
- Perform root-cause analysis of high-speed cable issues using laboratory measurement equipment and develop corrective and preventive actions.
- Serve as the primary technical contact for customers on high-speed automotive cable and interconnect applications.
- Travel periodically to customer, original equipment manufacturer, Tier 1, manufacturing, and test locations as required.
- Interface with internal Sumitomo Electric Wiring Systems cross-functional groups, program managers, and division management.
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
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Simplify's Take
What believers are saying
- May 21, 2026, Sumitomo Electric won Amprion's roughly EUR 2 billion HVDC cable project.
- FY2025 results hit record consolidated sales, operating income, ordinary income, and net profit.
- The July 16, 2026 Mid-term Plan 2028 targets profitability improvement and new CASE-related products.
What critics are saying
- TE Connectivity litigation still hangs over SEWS, with Michigan claims unresolved on June 2026.
- Automotive harness competition from Yazaki, Aptiv, and LEONI compresses pricing and OEM leverage.
- If 2030VISION misses EV and high-speed-communications transitions, SWS becomes a commoditized captive supplier.
What makes Sumitomo Electric Wiring Systems unique
- July 16, 2026 2030VISION positions SWS as a 21% global wiring-harness share leader.
- SWS integrates Sumitomo Electric and AutoNetworks through Three-in-One collaboration across development, manufacturing, and sales.
- Its 2026 strategy emphasizes smart factories, AI robots, and CASE-specific product commercialization.
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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