Senior Software Engineer (Backend/Infrastructure) - HENNGE Secure Transfer
HENNGE · Tokyo ·
- Work mode
- Hybrid
- Seniority
- Senior
- Employment
- Full time
- Category
- Backend
- Experience
- 3+ years
HENNGE · Tokyo ·
Applications: candidates may apply from outside Japan. Visa sponsorship: available. Japanese: Not required. English: Business level. Japan Dev tags: Engineering, Backend, Python, Kubernetes, AWS, DynamoDB.
About HENNGE
Join us at HENNGE, a Tokyo-based cloud-security leader helping organizations adopt flexible work environments and safely leverage the cloud. As a B2B SaaS company, we build secure and reliable cloud solutions that help enterprises manage access and identity efficiently. Our flagship product, HENNGE One, empowers thousands of enterprise customers with access control, email filtering, archiving, and next-gen cloud security features. What makes us unique: a highly technical CEO, strong engineering culture, and a global mindset.
Role overview
We are looking for a Senior Software Engineer to take ownership of backend and web-platform development for HENNGE One, our flagship cloud-security suite serving over 2.8 million users globally. As a B2B SaaS leader in Japan, we provide mission-critical security solutions that empower enterprises to work safely from anywhere.
In this role, you will join the Secure Transfer Team, responsible for the development of HENNGE One Data Loss Prevention (DLP) Edition. You will be developing our high-security file exchange solution—the "Secure Vault" of our ecosystem. Your mission is to architect the fault-tolerant, high-availability systems required to handle and protect sensitive enterprise data. This position is ideal for engineers who want to bridge the gap between advanced backend development and deep cloud infrastructure, utilizing tools like Kubernetes and Terraform to ensure data integrity.
While this role primarily focuses on the DLP Edition, we value engineers who are flexible and open to new challenges, with opportunities to move between teams and products through two-way discussions that support your growth and the company’s goals.
Tech Stack:
HENNGE Secure Transfer Team: FastAPI, Kubernetes, ArgoCD, PostgreSQL, AWS
What you’ll do
What we’re looking for
Minimum Qualifications:
While not required, we’d love to hear if you have:
Work Style & Employment Details
Work Style
Flexible working hours with a designated core time (11:00–16:00), allowing you to organize your day effectively. Employees typically work 8 hours per day with a 1-hour break.
Employment Type
Permanent employee.
Place of Work
Tokyo, Japan — Shibuya Headquarters.
Compensation
Annual salary: 8.5 to 12.5 million JPY
(includes English Allowance and Physical Communication Bonus)
Benefits
【Reasons why you will enjoy working at HENNGE】
🌎 We Celebrate Diversity
Join a vibrant team from over 20 countries, united by a love for technology and Japanese culture. Located in Shibuya, Tokyo, we offer a dynamic, non-traditional work environment in one of the world's most exciting cities.
📍 Smooth Japan Relocation
We make your move to Japan smooth and stress-free. We provide comprehensive support such as flight tickets, visa sponsorship, and Japanese lessons, to ensure a smooth onboarding process for our new hires, ensuring a seamless transition and a warm welcome for all candidates.
🎉 Balanced Work Life
Work-life balance is highly valued at HENNGE, and lots of fun happens at our office! 200+ of social channels in our Slack, from weekly board game nights to snowboarding club, internal and seasonal events, monthly tech sessions with beer bashes, attendance of international tech conferences, and more. Employees have access to a flexible working hours system (with core working hours) to accommodate their preferred working style.
❤ Passion for Technology
Our CEO has an engineering background and remains deeply engaged in product development. This hands-on understanding of technology helps shape a culture where thoughtful design, technical quality, and continuous improvement are genuinely valued. For engineers, this means working in an environment led by someone who understands the challenges of building products and actively supports teams in doing their best work.
🙌 Collaborative Teams
Work in autonomous teams where your decisions shape our services. Influence every aspect of our products, from UX and architecture to development and deployment, in an agile and collaborative setting.
Be part of a diverse and innovative team at HENNGE, where your passion for technology and desire to make a difference are valued and celebrated. Ready to change and challenge the status quo with us?
Hiring process
If you are also interested in the Senior Software Engineer: Python/Web Dev – HENNGE Access Control position, you do not need to submit applications for both roles. Since both positions share the same hiring pipeline, one application is sufficient. Please simply indicate your interest in both roles in your cover letter.
*We value your time and want you to perform at your best, so the coding challenge will be the only technical assessment in the process. There will be no live coding sessions.