About LINE Corp.

Shinjuku-ku, 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

Responsibilities

  • Design and develop server-side feature APIs for LINE’s messaging and social graph services, as well as other LINE Family services.
  • Design and develop scale and distributed processing-driven data structures for large-scale data storage.
  • Develop technology visions for a system that can flexibly address ongoing structural, performance, and scalability improvements for the LINE platform in addition to varying business needs

1. Lead/Senior Software Engineer - Line Server

Minimum Qualifications

  • Major in Computer Science or equivalent work experience
  • Strong skills and experience in at least one of the following languages: Java, C, C++, Scala, Erlang
  • Experience with complexity analyses for algorithms and data structures as well as software design experience
  • Experience developing consumer services
  • Expertise in designing, analyzing, and problem solving for large-scale systems or distributed systems
  • Experience leading development projects

Preferred Qualifications

  • Masters or PhD in Computer Science
  • Understanding of and experience tuning JVM internal architecture and garbage collection
  • Extensive knowledge of networks and experience designing and developing client/server protocols and APIs (REST and RPC) for mobile
  • Experience with using NoSQL in developing databases for big data processing or distributed storage
  • Experience designing and developing asynchronous and non-blocking IO systems
  • Ability to proactively approach and troubleshoot system issues
  • Experience developing and operating global-scale services
  • Open source committer and contributor

2. Software Engineer - Line Server

Minimum Qualifications

  • Major in Computer Science or equivalent work experience
  • 3+ years of hands-on experience in at least one of the following languages: Java, C, C++, Scala, Erlang
  • Possesses problem-solving skills and understanding of algorithms and data structures
  • Experience developing in Linux and Unix environments

Preferred Qualifications

  • Masters or PhD in Computer Science
  • Extensive experience in at least one of the following languages: Java, C, C++, Scala, Erlang
  • Experience operating or developing distributed systems
  • Broad grasp of networks and experience developing client/server protocols and APIs (REST and RPC) for mobile
  • Experience with using NoSQL in developing databases for big data processing or distributed storage
  • Strong grasp of Linux and Unix systems and networks
  • Experience developing consumer services

Ideal Candidate

  • Interested in the internet and optimistic about its possibilities
  • Eager to expand knowledge and learn about new technologies

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-ku, 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

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