Job Description

Career Opportunity for a Senior Backend Engineer in Japan! 

■ Sr Backend Engineer  

■ Company Overview

 A Japan-based manufacturing technology company that helps industrial businesses improve procurement and production efficiency through AI-driven data platforms, enabling better use of engineering drawings, quotation workflows, and supply chain information. Its solutions focus on digitizing fragmented manufacturing knowledge, reducing operational costs, and supporting data-driven decision-making across large-scale manufacturing organizations. 

■ Your Role and Responsibilities 

● Design, support the implementation and deliver large scale, and complex, systems  
● Manage teams stakeholders such as product managers or frontend engineers but also other team leads or non-tech stakeholders.
● Leverage the infrastructure to solve such large scale problems. 
● Acts as a gatekeeper to the team quality standard
● Triage, debug and resolve product issues or other incoming inquiries
● Mentor other team members and saveguard the team quality standards    

■ Tech Stack 

 We currently work with
Back-end services:
● Main implementations are in Spring Boot, with a mix of Java 11/Spring Boot 2 and Java 17/Spring Boot 3.
● Some legacy systems are written in Java EE.
● Testing is done with JUnit and Mockito
● Deployment relies on AWS ECS
● CI/CD is handled by AWS CodePipeline
Infrastructure
● All our services run in AWS
● Infrastructure is managed by AWS CloudFormation
● AWS CloudWatch is used for observability
● Coding environment: GitHub, IntelliJ, Gradle
● Documentation & Project management: Confluence, Miro, JIRA
● Communication: Slack, Zoom, Office 365 

■ Experience and Qualifications

● Experience in any OOP based language e.g Kotlin, Java, C#, Scala etc. 
● Experience with RDBMS and NoSQL databases, along with distributed cache. 
● Strong fundamentals in data structures, algorithms and object oriented programming. 
● In-depth understanding of concurrency and distributed computing.  
● Degree in Computer Engineering or Computer Science or 5+ years equivalent experience in 
● SaaS platform development.
● English business proficiency 
● Experience with Java/Spring Boot framework 
● Experience with implementing platform components such as RESTful APIs, Pub/Sub Systems, Database Clients. 
● Experience in system design for high traffic application with scalability in mind 
● Experience with microservices & event-driven architecture
● Experience gRPC communication design and implementation
● Experience in a multicultural environment
● Japanese conversational proficiency is a plus  

■ Good Reasons to Join

●Hybrid position in Japan

● Work with International team members
● Working hours: Flextime schedule with a core time of 11:00–16:00. Includes a 1 hour break.

■ Work Location

Tokyo, Japan

Details will be provided during the meeting.