About LINE Corp.

Shinjuku, Tokyo

At 83 million domestic users, or 65% of the population, LINE is Japan's most popular messaging application. It is also popular throughout Asia, boasting approximately 186 million users globally.

Key benefits

  • Build reliable systems at scale
  • Room to grow
  • Healthy work/life balance

About the position

LINE provides a messaging service to hundreds of millions of the users in the world-wide, which means that we have large-scale systems with high availability requirement. Observability Infrastructure team at LINE is the team behind the monitoring infrastructure which helps LINE engineers to maintain the availability of those systems. You will be part of the team that builds metrics, log and trace data pipeline which serves hundreds of millions of data points and events per minute, as well as visualization system which helps other engineers to easily troubleshoot their application.

What you’ll do

  • Design, build and deploy software systems that run 24/7 at scale.
  • Write tools which improve reliability of current running system.
  • Define on-call process and standards.
  • Collaborate with other engineers throughout LINE to design new features of our observability stack.
  • Participate in code reviews to ensure code quality, including open-source projects.

External resources about the team

Minimum Qualifications

  • Familiarity with Linux performance analysis tools like tracers, profilers, debuggers, visualization tools.
  • Experience operating and introducing open-source software to production at scale (ElasticSearch, Cassandra).
  • Interest in metrics and devops practice.

Preferred Qualifications

  • Experience building and supporting large-scale distributed systems that back a consumer app or website.
  • Experience integrating performance tools into Continuous Integration/Deployment pipelines.

Meet LINE Corp.'s Developers

Growing a career in Japan

with Matthew Bailey

Starting as a server side engineer at LINE, Matt is now a software development manager. He shares his experiences of finding a job in Japan, and gives tips on how you can be successful at landing one too.

Read his story...

Joining LINE from overseas

with Li Liu

Li was working in Toronto when he was recruited to join LINE as a principal engineer. He tells his story of relocating to Japan.

Read his story...

Joining LINE as a QA Engineer

with Swapnali Koli

Swapnali had been working at a Japanese company as a QA Engineer. Looking for a new challenge, she joined LINE, where she’s led their private cloud API automation project.

Read her story...

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About LINE Corp.

Shinjuku, Tokyo

At 83 million domestic users, or 65% of the population, LINE is Japan's most popular messaging application. It is also popular throughout Asia, boasting approximately 186 million users globally.

Key benefits

  • Build reliable systems at scale
  • Room to grow
  • Healthy work/life balance

Other Jobs at LINE Corp.

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