Job title: Back-End Engineer---PK
Job type: Permanent
Emp type: Full-time
Industry: IT & Telecommunications / IT・通信
Functional Expertise: Technical (IT) / 技術職(IT)
Salary: Negotiable
Job published: 2026-03-24
Job ID: 70680

Job Description

Career Opportunity for a Back-End Engineer in Japan! 

 

■ Back-End Engineer 

 

■ Company Overview

  A leading digital payments and fintech company in Japan, focused on transforming cashless transactions through a widely used mobile payment platform. It offers convenient financial services for consumers and merchants, with strong market presence, rapid innovation, and continuous expansion across the Japanese digital economy  

 

■ Your Role and Responsibilities 

● Support the design, implementation and delivery of large scale, and complex, systems, while collaborating with product managers, frontend engineers or other team members.
● Understand how to leverage infrastructure to solve large scale problems. Contribute to the team by sharing knowledge, participating in code reviews and providing feedback to uphold and ensure best practices.
● Triage, debug and resolve product issues or other incoming troubles inquiries
● Adopt problem solving as a way of life – always go to the root cause! Support the code you write in production.  

 

 

■ Experience and Qualifications

● Skills in OOP language such as C# or other JVM language, such as Scala are welcome Experience with RDBMS, NoSQL databases along with distributed cache.
● Strong fundamentals in data structures, algorithms and object oriented programming.
● In-depth understanding of concurrency and distributed computing.
● Experience implementing platform components such as RESTful APIs, Pub/Sub Systems, and Database Clients. Experience with microservices and event-driven architectures. Experience designing high traffic systems.
● Degree in Computer Engineering or Computer Science or 3+ years equivalent experience in SaaS platform development.
● English business proficiency 



■ Additional Preferred Qualifications
● Domain-driven development knowledge
● Java/Spring Boot experience
● GRPC and Kafka development experience
● Experience in a multicultural environment
● Stakeholder management is welcomed Japanese conversational proficiency is a plus  



■ Good Reasons to Join

● Remote/Hybrid position in Japan

● Work with International team members
● Full Flex Time (No Core Time) In principle, 9:00am ~ 5:45pm (actual working hours: 7h45m + 1h break)  

 

 

■ Work Location

Tokyo, Japan
You can live anywhere in Japan

 

Details will be provided during the meeting.



File types (doc, docx, pdf, rtf, png, jpeg, jpg, bmp, jng, ppt, pptx, csv, gif) size up to 5MB
File types (doc, docx, pdf, rtf, png, jpeg, jpg, bmp, jng, ppt, pptx, csv, gif) size up to 5MB