SRE(Site Reliability Engineer)

Job Summary

  • Japan, Tokyo
  • Partial remote
  • Apply from Anywhere
Language Requirements
  • English: Business
  • Japanese: Conversational
Key skills
  • C#
  • Azure

Job Description

Job Role


Job Description

About us bitFlyer, Inc. was established in 2014 with the mission of "Making the World Simpler with Blockchain". The company has developed its crypto asset trading business globally with its group companies, bitFlyer USA, Inc. and bitFlyer EUROPE S.A., and has achieved the No. 1 position in customer satisfaction. As a crypto asset exchanger and a Type 1 Financial Instruments Firm, we continue to expand and improve our services and aim to become a highly liquid crypto asset exchange that satisfies as many customers as possible. In addition, our founder, Yuzo Kano, was appointed CEO and Representative Director of bitFlyer Holdings, Inc. In addition, in order to strengthen the sense of unity of the group, he now also serves as the representative director of bitFlyer Inc. and bitFlyer Blockchain Inc. Taking this opportunity, bitFlyer will advance to a new stage as a group. Placing the highest priority on compliance with laws and regulations and strengthening governance, we will take on the challenge of creating new markets utilizing crypto assets and blockchain technology, aiming to become the No. 1 web3 company in Asia. Diversity At bitFlyer, we are not bound by age, gender, or nationality, but are a group of high performers in various fields. Our employees come from a variety of backgrounds, including foreign securities firms and investment banks, Japanese securities firms, megabanks, four major audit firms, strategic consulting firms, general consulting firms, foreign IT firms, Japanese IT firms, and Japanese start-ups. As for engineers, some of them have participated in world competitions in competitive programming, and more than 30% of them are from overseas. The environment is full of diversity, with English-language discussions taking place here and there. As a member of SRE for the various services we provide, you will be responsible for the following tasks - Develop tools and use DataDog to maintain the service monitoring environment, prevent failures and accelerate failure detection, and respond quickly to and prevent failures when they occur. - Build and maintain a workflow that can be used by product development teams using CI/CD and IaC for self-service. - Reduce the number of failures by thoroughly automating system operation tasks. - Identify technical issues and bottlenecks, and propose and implement solutions. - Spread Site Reliability Engineering culture and best practices within the company


Our office is located in Tokyo Midtown, a landmark in Roppongi. In addition to the excellent location, the office also provides an environment that maximizes the efficiency of each individual employee. In addition to the excellent location, we provide high-performance PCs and large-screen displays for our engineers, corporate staff, and back office staff. All employees are provided with office chairs that are voted on by employees. We also actively respond to requests for keyboards, pen tablets, and various types of software.

Required skills & Experience

Basic qualifications

◆Candidates must meet one of the following criteria - .NET Core/ASP.NET web application development and operation experience and confident in C# proficiency. - At least 3 years of experience in developing and operating web applications using Azure - At least one language with deep implementation experience and at least 3 years of experience in development and operation with AWS/GCP and comfortable with switching to C#/Azure. ◆Those who meet the above and two or more of the following - Experience in performance analysis and tuning of various RDBs in large-scale services - Experience in CI/CD construction and operation of applications - Experience in Infrastructure as Code - Experience in building and operating infrastructure with Kubernetes - Experience in application performance tuning (latency improvement, throughput improvement)

Preferred qualifications

- SRE experience in 24/365 mission-critical services - Experience as an incident handler in failure response and a proven track record of taking full responsibility for the resolution of incidents. - Experience in large scale service development or SRE - Experience as a DBA - Deep understanding of container technology - Fluent in either English or Japanese

Ideal applicants

- Those who can relate to bitFlyer's MVV. - Enthusiastic and sincere - Able to respond flexibly to changes with a sense of speed. - Logical communication skills. - Ability to set issues, solve problems, and execute.

Job Details

Employment type
Japan, Tokyo
Apply from
Remote work
Partial remote
・Saturdays, Sundays, Japanese public holidays
・Annual leaves
・Year-end and New Year holiday
・Congratulatory and condolence leave, maternity leave, childcare leave, birthday leave,
Employee benefits
・Commutation Allowance
・Social insurances (health insurance, welfare annuity insurance, employment insurance, industrial accident compensation insurance)
・Book purchase support
・Free drinks, snacks, and noodles
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