Senior Software Engineer (Python)

  • Full Time
  • Tokyo
  • 6,500,000 - 12,000,000 JPY / Year

Website HENNGE K.K.

HENNGE One, one of the top cloud security services in Japan, enables customers to adopt flexible work environments and safely harness the power of the cloud from any location.

Key benefits

  • Relocation support
  • Work life balance highly valued
  • Highly technical CEO

About the position

We’re currently looking for a senior Python engineer to join our fast-paced growing team.


  • Design, develop, and maintain innovative features based on business needs
  • Design scalable and fault-tolerant architecture in a distributed cloud deployment
  • Ensure high quality deliverables by maintaining CI/CD, writing solid tests, and concise documentation
  • Improve team synergy and mentor junior engineers
  • Communicate with Design, Product Management and Customer Success teams
  • Our tech stack: Python 3, asyncio, NoSQL, AWS, Docker.


  • 3 years of experience with Python backend development
  • Strong background building scalable web applications in Python
  • Ability to mentor junior engineers and work collaboratively in a team environment
  • Experience with cloud infrastructure, such as AWS, GCP, or Azure
  • Ability to automate deployments via CI/CD pipelines
  • Understand the importance of clean code and software documentation
  • Business level English (Japanese is NOT required)
  • Last but not least, fit with open source and hacker culture

Nice to haves

These aren’t required, but be sure to mention them in your application if you have them.

  • Experience building large-scale distributed systems
  • Deep experience with AWS
  • Experience with asyncio based web frameworks in Python
  • Knowledge of security concepts and technologies
  • Deep knowledge of Linux environment
  • Degree in Computer Science or other related technical field
  • Team leadership experience


6.5 to 12 million JPY annually.

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