Customer Reliability Engineer (CRE) - Help us grow Japan's biggest platform with your tech skills!

 

■ Job Title

Customer Reliability Engineer (CRE)

 

■ Company Overview

We are a major IT company running one of Japan's #1 messaging apps and many other platforms.

Our tech supports the daily lives of tens of millions of people through APIs and high-level infrastructure.

 

■ Role & Responsibilities

You will solve tech issues for our messaging and developer platforms.

You'll build tools to help customer support, handle security tasks, and monitor service quality (SLO/SLA) to keep our users happy.

 

■ What You Need (Requirements)

・2+ years of experience in Web app development (Java, Kotlin, C++, etc.)
・Experience with Spring Boot and SQL.
・Basic knowledge of encryption.
・Great teamwork—you can propose ideas and work well with non-tech teams.
・Business level English (reading and writing).

 

■ Nice to Have (Bonus Skills)

・Experience with large-scale B2C platforms.
・Background in CRE or Platform Engineering.
・Skill with Jira, Tableau, or API integrations.
・Experience with big data tools like Hive or Spark.
・Understanding of privacy laws or CS on-call experience.
・Japanese language skills (N2-N3 level).

 

■ Why You'll Love It

Work closely with our dev teams and help build our CRE organization from scratch! We offer "full flex" hours (no core time), a hybrid remote work style, and great perks like sabbatical leave to help you stay refreshed.

 

■ Location

(Current) Various offices in Tokyo—with a remote work system available!
(Future) Locations may change as required by the company.

 

■ Salary

Based on your experience. Paid monthly with bonuses twice a year.

 

■ Contract Type

Permanent

 

 

We’ll share more details during the interview!

 

【Applying through this page doesn't mean your application is final.】 If you just want to hear more, feel free to reach out!
We're available for online or phone chats.

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