Elevate Vehicle Serviceability: Lead Automotive Diagnostics & Fault Tracing in Japan!

*Must be in Japan, with a working visa*

■ Job Title

Diagnostics Engineer (Aftermarket & Vehicle Diagnostics)

■ Company Overview

A leading global automotive engineering services and technology solutions provider delivering high-performance vehicle diagnostics, electronic software, and aftermarket engineering services. Partnering with top OEMs and Tier-1 suppliers across Japan and international markets, the company ensures seamless vehicle serviceability, safety, and diagnostic validation across complex automotive systems.

■ Your Role and Responsibilities 

Lead on-vehicle diagnostic engineering, fault tracing, and verification/validation (V&V) activities for aftermarket and vehicle service operations. Reporting across business units in Japan and India, you will utilize UDS protocols and diagnostic objects (DTCs, DIDs, RIDs, snapshots, parameters) from both on-board and off-board perspectives. Responsibilities include executing hands-on vehicle tests, verifying implemented diagnostic methods against service warning guidelines, analyzing test results, resolving technical issues, and collaborating across cross-functional engineering teams.

■ Experience and Qualifications

• 5 to 10 years of experience in aftermarket diagnostic engineering or vehicle diagnostics in the automotive industry.
• Hands-on experience in diagnostic fault tracing, verification, and validation directly on physical vehicles.
• Deep understanding of end-to-end vehicle functions, UDS communication protocols, and diagnostic services.
• Proficiency with diagnostic objects such as Diagnostic Trouble Codes, Data Identifiers (DIDs), Routine Identifiers (RIDs), and snapshots.
• Experience using various automotive diagnostic tools and test benches.
• Fluent or native-level English skills with basic or higher Japanese capabilities (bilingual preferred).
• Bachelor’s or Master’s degree in Electrical, Computer, Automotive, Systems Engineering, or related fields.

■ Additional Preferred Qualifications

• Strong cross-functional collaboration and stakeholder management skills.
• Demonstrated ability to establish robust service information, design guidelines, and safety warnings.

■ Good Reasons to Join

• Hands-On Engineering Impact: Drive real-vehicle testing and diagnostic validation directly on advanced automotive platforms.
• Global Engineering Network: Work across international teams bridging Japan and India in an expanding Technology Business Unit.
• Multicultural Work Environment: Build a global career utilizing bilingual language skills in an inclusive engineering culture.
• Full-Time Career Growth: Expand your technical expertise within an established full-time role dedicated to next-generation automotive serviceability.

■ Work Location

Saitama, Japan

■ Salary 

Negotiable based on experience and capability