Job title: Backend Engineer (RC)
Job type: Permanent
Emp type: Full-time
Industry: IT & Telecommunications / IT・通信
Functional Expertise: Technical (IT) / 技術職(IT)
Salary: Negotiable
Location: Tokyo
Job published: 2025-10-20
Job ID: 66188

Job Description

Career Opportunity for a Backend Engineer in Japan!

 

■ Backend Engineer

 

■ Company Overview

One of the biggest B2C product companies in Japan. Its known as a trusted guide for hundreds of millions of people globally, helping them achieve their goals online through our portfolio of iconic products.

 

■ Your Role and Responsibilities

●Develop and operate services in both Kotlin and Perl environments. While promoting new development using Kotlin, facilitate migration from Perl to Kotlin as needed when modifying existing features.

● Lead the development of back-end services for user-facing features.

● Design architectures that enhance efficiency and flexibility.

● Design and develop services that maintain high standards of availability, reliability, and fault tolerance.

● Collaborate with other teams and actively participate in code reviews and design reviews to support high-quality implementation.

 

■ Experience and Qualifications
● 5+ years of server-side application development experience.

● Experience and skills in issue handling and incident response.

● Knowledge of and experience using scalable data storage technology such as MySQL.

● Fundamental computer science knowledge.

● Business level verbal communication skills in Japanese or English.

● Business level written communication skills in English.

 

■ Additional Preferred Qualifications
● JVM application tuning and monitoring.

● Development experience with Kotlin

● Experience in the coaching, management and/or leadership of a technical team.

● Kubernetes-based application development.

● Product and Service Development: Kotlin, Ktor

● Observability: Prometheus, Grafana, OpenSearch

● Storage: MySQL

● Infrastructure: Container(Kubernetes), VM/PM on Private Cloud.

● Infrastructure as Code, CI/CD, Configuration repository: ArgoCD, GitHub Actions

 

■ Good Reasons to Join

● Flexible working hours

● Competitive salary and benefits

● Opportunity to work with global tech teams

 

■ Work Location

Tokyo, Japan

 

Details will be provided during the meeting.

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