Job Description

Career Opportunity for a Back-end Developer in Japan!

■ Back-end Developer

■ Company Overview

This company is a leading digital platform resulting from the merger of two major tech firms, offering a wide range of services including messaging, search, e-commerce, advertising, fintech, and digital content. It operates one of the most popular mobile apps in the region and plays a key role in both daily communication and online services. With a strong focus on innovation and integration, it aims to enhance user experience across its ecosystem while driving digital transformation and business growth in various sectors.

■ Position Details
Team members in this position are responsible for leading the back-end development and operation of the creator-focused services for the sticker, emoji, and theme features. You will develop various creator-focused features, including the registration and sale of stickers, themes, and emojis, as well as related review processes and sales management. Additionally, you will contribute to designing and developing a flexible service architecture that enables creators to seamlessly offer a diverse range of 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.
● Support team members in software implementation and operational best  practices.
● Collaborate with other teams and actively participate in code reviews and design reviews to support high-quality implementation

■ Additional Preferred 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.

■ Development Environment

● 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

● Hybrid work culture 

■ Work Location

Tokyo, Japan
 

Details will be provided during the meeting.