We’re currently looking for a senior software engineer (Python) to join our fast-paced, growing team. As part of the engineering team, you will be responsible for building cloud-security solutions used by thousands of enterprise companies. Our flagship product, HENNGE One, provides functionalities ranging from access control, email filtering, online storage, and email archiving. We focus on implementing state-of-the-art security functionalities, ensuring SLA 99.9% in distributed fault-tolerant deployment, and providing the best user experience to our customers.
Responsibilities
- 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 through CI/CD pipelines, tests, and documentation
- Collaborate with Design, Product Management and Customer Success teams to continuously improve the product
- Support the team by actively participating in discussions and reviewing others’ code
- Improve team synergy and mentor junior engineers
Requirements
- At least five years of experience working with Python for backend development
- Strong background in 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
- Fluency in English (Japanese is not required)
- Interested in open source or tech community activities
Nice to haves
While not specifically required, tell us if you have any of the following.
These aren’t required, but be sure to mention them in your application if you have them.
- Degree in Computer Science or other related technical fields
- Experience building large-scale distributed systems
- Experience in cloud computing platforms, especially AWS
- Experience with building SaaS products
- Knowledge of web security concepts and technologies related to access control or email-related field
- Knowledge of DevOps tools and practices (CI/CD, Infrastructure as Code)
- Knowledge of Linux / MacOS / Unix-like environments
- Team leadership experience
Compensation
¥8,000,000 ~ ¥12,000,000 annually.
Our salary range is inclusive of English Allowance & Physical Communication Bonus - please check the details below, with the final amount determined based on your experience and skills.
Please refer to our Company Introduction Deck for an explanation of our Assessment System and the Belt System, which we use to determine the candidate’s salary range.
Benefits
- English Allowance and Advanced Language Expert Allowance: JPY 10,000 ~ JPY 130,000 per month, paid alongside base salary, if the employee fulfills the requirements.
- Physical Communication Bonus: JPY 4,000 per day, applicable from October 2025 onwards, for coming to the office and interacting with other employees, paid out as bonus according to the number of days.
Details will be provided at the offer meeting.
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