Senior Applications Engineer

SEWS—Ohio Customer Service Center (Marysville, OH).

Although located at SEWS – Ohio Customer Service Center Office, this is a Hybrid position, which combines both in office and off-site work. Associates are required to work at least three days in the office each week, but also have the flexibility to work off-site.

The Senior Applications Engineer will work directly with IT Department to design SEWS next-generation supply chain systems architecture with particular focus on global finished goods operations. This role is critical to transitioning from legacy, in-house systems to SaaS cloud systems such as Enterprise Resource Planning (ERP) and Transportation Management Systems (TMS).

This role will ensure seamless integration between existing internal systems and new cloud-based platforms, including orchestration layers, TMS, and ERP solutions. The applications engineer will enable connectivity across production planning, in-transit logistics tracking, warehouse management, and customer order/forecast systems (EDI), driving efficiency, visibility, and responsiveness across the global supply chain.

• Work with IT Department to design the future systems architecture for global finished goods supply chain transformation, ensuring scalability, flexibility, and long-term sustainability.
• Design and implement integration solutions connecting legacy in-house systems with modern SaaS platforms and orchestration layers.
• Develop API-based and event-driven solutions to enable real-time data exchange across production planning, logistics tracking, warehouse operations, and customer ordering systems.
• Partner with business stakeholders (Production Planning, Manufacturing, Logistics, Warehouse, Delivery, and IT Department) to translate operational requirements into technical system capabilities.
• Establish data governance and system reliability standards, ensuring data accuracy, system uptime, and cybersecurity compliance.
• Troubleshoot and resolve system integration issues, providing ongoing support and continuous improvement of application performance.
• Lead and mentor internal teams and external partners, building organizational capability in modern system architecture and integration best practices.

• Bachelor’s degree in computer science, information systems, engineering or related field
• 7-10 years’ experience in system application engineering, integration or enterprise architecture
• Experience working with automotive or complex manufacturing supply chains
• Strong knowledge of system integration methods (APIs, Webhooks, event-driven architecture)
• Familiarity with supply chain systems:
  Enterprise Resource Planning (ERP), Production Planning, Warehouse Management Systems (WMS), Transportation/Logistics systems (TMS), EDI and customer forecast/order integration.
• Experience with hybrid system environments (cloud-based SaaS platforms and on-premises systems)
• Experience transitioning or modernizing legacy systems
• Strong problem-solving and analytical skills with ability to translate business needs into system solutions
• Excellent communication skills with ability to collaborate across global and cross-functional teams

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.

Our associates are what drive Sumitomo’s continued growth, which is why we proudly offer a competitive salary and comprehensive benefits package, including

• Medical
• Dental
• Vision
• Disability
• Life
• 401(k) with match
• tuition benefits
• paid holidays
• vacation.

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

Follow Us on Linked In:

An Equal Opportunity Employer M/F/D/V