【N1】 Bilingual Tech Lead (Java / Spring Backend)

A Global EC firm is looking for a Bilingual Tech Lead for their various services within e-commerce domain.


Why should you apply:

• Bilingual environment with real engineering ownership
  English is used for design reviews and collaboration with overseas engineering teams, while Japanese is essential for aligning systems with HQ and on-site operations. Language skills directly influence architecture, priorities, and delivery—not just communication.

• Systems that directly impact the business
  You’ll work on transportation and warehouse platforms that control delivery planning, shipment tracking, and customer-facing delivery status. These are mission-critical systems—if they stop, the business stops.

• True end-to-end responsibility
  Involvement spans requirements definition, architecture, implementation, release, and production troubleshooting—far beyond a single development phase.

• Hands-on technical leadership
  The role requires leading design discussions, performing code reviews, and making key decisions around performance, stability, and long-term maintainability.

• High-load backend engineering challenges
  Java / Spring-based services operating at scale, with a strong emphasis on logging, observability, and operational excellence in a Linux environment.

• Rare logistics domain exposure
  Deep engagement with transportation management, warehouse operations, and delivery control systems—experience that is difficult to gain outside a few large-scale platforms.

Responsibilities:
- General product management, operational flow, and screen design
- Creating system requirements, functional requirements, and architectural requirements
- Building applications for high-load transactions and designing and implementing performance tests
- Basic design, infrastructure and middleware preparation, and log collection management
- Detailed design, establishing implementation policies, and conducting reviews


Company Overview: This is a global company with a strong presence in multiple business sectors. Wide range of business activities, the company also works with various technologies. You can choose your preferred working environment, whether Windows or Mac! Meals at the employee cafeteria are free, and the chef regularly comes up with new menus, ensuring you never get bored of the meals!

Work Hours: 9:00 AM – 5:30 PM (Flextime or staggered working hours possible)

Work Style: Hybrid (Typically 4 days in the office, 1 day working from home)

Holidays: Saturdays, Sundays, public holidays, New Year holidays, paid leave, bereavement leave, and other special leave

Benefits: Full social insurance (employee pension insurance, health insurance, worker’s accident compensation insurance, unemployment insurance), DC pension plan, transportation allowance, childcare and caregiving support, cafeteria, retirement benefit system, welfare services (Relo Club), health counseling services, relocation support (visa support, moving), employee discounts (moving, language classes, etc.), and more
Interview Process: 3~4 times

Required Skills:
- 5+ years of back-end development experience with the Java, Spring Framework
- Experience in application development using Oracle and SQL
- Experience in system operation and maintenance using Linux
- Ability to perform security-conscious coding and code reviews
- Ability to read, analyze, and understand existing code