Стек и навыки

Kubernetes
AWS
Cloud Security
Terraform
Argo CD
Kyverno
Kustomize
Helm
Helm Charts
GitHub Actions
OpenTelemetry
Grafana

What you'll do

Design, develop, and maintain Internal Developer Platform (IDP) using Kubernetes and AWS services
Contribute to technical discussion to help define the architecture, roadmap and the future direction of the IDP.
Collaborate with product development teams to seamlessly onboard their product onto the IDP.
Participate actively in code reviews, discussions and technical decision-making.

About HENNGE

HENNGE is a B2B SaaS company based in Tokyo, Japan, and we are at the forefront of the changing workplace. HENNGE One, one of the top cloud security services in Japan, allows customers to adopt flexible work environments and safely harness the power of the cloud from any location. With cloud security ensured, employees are free to focus on working smarter, improving quality, and achieving business results.

Role overview

We are looking for a Platform engineer to take ownership of Internal Developer Platform (IDP) development for powering 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 Platform team, to build,evolve and maintain our Internal Developer Platform leveraging cloud native technologies (Kubernetes) and AWS services. Your mission is to empower our product development teams to build, ship and run their applications securely and efficiently. To succeed in this role, you will bring a strong technical foundation in Kubernetes and AWS.

Minimum Qualifications

3 years of experience working with production Kubernetes on cloud, preferably AWS EKS. (Note: please mention the exact years of professional experience with Kubernetes in your cv).
3 years of experience building and managing AWS infrastructure with Terraform.
Hands-on experience with ArgoCD and Kustomize and authoring/deploying Helm charts.
Experience building and maintaining web application pipelines using GitHub Actions.
Ability to take technical initiatives, mentor junior engineers, and work collaboratively in a team environment.
Fluency in English, equivalent to CEFR B2 level or above (e.g., TOEIC 785+).
Conversational Japanese to coordinate with external vendors (e.g. AWS Japan), cross-functional divisions, and local communities.

Degree in Computer Science or related technical field.
Relevant industry certifications, such as:
Certified Kubernetes Administrator (CKA), Certified Kubernetes Application Developer (CKAD), or Certified Cloud Native Platform Engineer (CNPE)
AWS Certified Solutions Architect (Associate/Professional) or AWS Certified Security - Specialty
HashiCorp Certified: Terraform Associate
Hands-on experience building custom Kubernetes controllers and implementing policy management tools like Kyverno .
Experience with Backstage (or similar Internal Developer Portal frameworks)
Experience setting up and managing observability tools (OpenTelemetry, Grafana / LGTM stack).
Strong understanding of AWS security best practices.
Track record of contributing to CNCF open-source projects or speaking at cloud-native tech conferences.
Strong technical communication and writing skills (runbooks, documentation) to collaborate effectively across Platform and Product teams via code reviews and technical discussions.

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. (We will move to Shinjuku starting April 2027)

Compensation

Annual salary: 8 to 10.5 million JPY (includes English Allowance and Physical Communication Bonus)

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 5,000 per day 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.
Transportation allowance (maximum of JPY 35,000 per month).
Employee Stock Ownership Plan.
Insurance: Health, Employment, Industrial Injury, Welfare pension.
Opportunities to attend international and domestic conferences.
Financial support for technical certifications and technical learning programs.

Reasons why you will enjoy working at HENNGE

🌎 We Celebrate Diversity

📍 Smooth Japan Relocation

🎉 Balanced Work Life

❤ Passion for Technology

🙌 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

Solve our online coding challenge

Upload your CV and Cover Letter
Casual interview with our HR
2 (or 3) interviews with our engineers (no live coding)
Final Interview with our CEO

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.