Jobs / Senior Platform Engineer
Jobs at Cybozu, Inc.

Senior Platform Engineer

Cybozu, Inc. Japan | Hybrid
EN: business
JP: business
Employment Type
Full time

Job Description

Our Team

We have established a new and rapidly expanding team of around 20 people to build next-generation groupware and workspace solutions, including advanced identity and access management, communications, collaboration, and more.

The team comprises both exceptional existing professionals and newly-hired senior engineers. We aim to foster a team culture with the following qualities:

  • Aligning actions with a compelling, shared vision
  • Valuing individual differences and talents
  • Fostering trust through open and transparent communication
  • Empowering people to act independently while making progress together through discussion

Position Overview

We are seeking highly experienced platform engineers who are responsible for improving the deployment and delivery of applications and services for our products. We hope to enhance the value of our collaboration software with the new product and allow our customers to experience better teamwork.

To achieve very high availability and conform to various regulations, we use multiple regions of Google Cloud to host the products. Among other technologies, we heavily use Google's managed Kubernetes and load balancers.

As a senior platform engineer, you will work with our software development teams to design and implement a highly automated and continuous integration and delivery system for their deliverables. You will also be responsible for monitoring the service, responding to their incidents, and managing costs on cloud resources.


  • Design and implement automated and continuous integration and delivery system for our product with good documents and tests.
  • Review other engineers' design and code.
  • Collaborate with other engineers, product designers, and architects
  • Create processes to monitor and respond to incidents
  • Monitor and manage costs on cloud resources
  • Analyze and reduce security risks in our systems and practices


Expected Knowledge, Skills, and Abilities

  • 5+ years of experience working in development roles in software engineering
  • Hands-on experience in writing software in Go
  • Hands-on and professional experience using Kubernetes
  • Hands-on and professional experience using cloud platforms like AWS, Azure, or Google Cloud
  • Knowledge and experience in building multi-stage, multi-regional, multi-environment (dev/staging/production) CI/CD pipelines with the GitOps and Infrastructure as a code.
  • Effective communication and proficient writing in English.

Additional Desirable Knowledge, Skills, and Abilities

  • Experience with Google Cloud services including Cloud Spanner and Cloud Load Balancing
  • Experience with Istio and gRPC
  • Knowledge of OAuth2, OIDC
  • Understanding of modern web application architecture such as microservices.
  • Basic understanding of regional regulations such as GDPR or CCPA
  • Very good command of Japanese

About the Company

Our purpose is to build a society brimming with teamwork. We offer the flexibility you need to work within a supportive, motivated, teamwork-driven environment.

We develop and deliver cloud-based collaboration services that enable diverse people to work together more easily and effectively. Today, we are one of Japan's most successful cloud-based companies, with four key products used every day by more than 160,000 businesses and nonprofit organizations worldwide.

Work Hours

  • Flexible Working Hours
  • Core collaboration time : Tue-Fri 9am-11am


  • You can choose the work location nationwide, whether at one of our offices* or fromhome.
    *Office list:

    *The Sapporo, Sendai, and Yokohama offices are designated for specific divisions only. (Ex: Sales Team)

    Smoking will be prohibited in all office areas, except for designated smoking rooms in some areas.


  • Salary Range(※1): JPY 9,000,000 – JPY 11,000,000
    • Estimated annual salary: Base Salary (12 months) + Bonus (Base salary x 1 month x twice a year = 2 months)
    • Monthly salary system: Base salary is determined based on your skill set, experience, and abilities, etc.
    • An allowance for additional overtime(※2)is included in the base salary. However, work exceeding additional overtime agreed to between the employer and employee will be compensated separately.
      • Base monthly salary(※1): JPY 640,000 – JPY 790,000
        The base monthly salary breakdown as follows:
        • Base salary: JPY 487,600 – JPY 601,900
        • Allowance for additional overtime(※2): JPY 152,400 to JPY 188,100

1. Depending on your skill set and experience, the amount set may be outside the above range.
2. Calculated based on 160 hours of scheduled working hours per month and 40 hours of additional overtime.


  • Relocation and Visa Sponsorship to Japan offered
  • Commuter allowance
  • Remote work allowance
  • New tech gear
  • Skill development support
  • Book purchases
  • Language Learning Support
  • Interpretation support
  • Complete health and social insurance
  • Employee stock ownership plan
  • Parental Leave


  • Two days off per week (Saturday and Sunday), Japanese national holidays
  • New Year's vacation(December 29th - January 3rd)
  • Annual paid leave
  • 5 days of Proactive Personal Leave and 5 days of Family Care and Personal Sick Leave

Selection Process

  • Document Screening
  • Interviews (2-3)
    *The 2nd interview is a technical interview
  • Offer Meeting