IT System Administrator

  • Tokyo
  • No Remote
  • Full-time
  • December 27, 2023
8,000,000 - 12,000,000 JPY /yr
Apply from Japan Only
(You must live in Japan to apply)
Language Requirements
Japanese: Not Required 👍
English: Business Level
Minimum Experience
Senior or above
Seeking a talented System Administrator to join the Mujin Infrastructure team. At Mujin, you will have the opportunity to be part of our transformation into a DevOps-focused approach to managing, deploying, and maintaining our infrastructure. Our team is culturally diverse, with English as the primary language, offering you the chance to collaborate with individuals from diverse backgrounds. In this role, your main duties include maintaining, scaling, securing, designing, deploying, and managing the lifecycle of Mujin's services.



  • Design, architect, and deploy services for both internal and external (cloud) use at Mujin
  • Manage the lifecycle of existing and active services, including patching, security tracking, auditing, and scaling up/down
  • Provide technical support and troubleshooting for all active services
  • Address the support ticket backlog for system administrative tickets
  • Conduct audits and strengthen Mujin's infrastructure
  • Use automation to improve efficiency and reduce manual work
  • Implement a defense-in-depth strategy to secure Mujin's services from potential threats
  • Create documentation and procedures related to the services provided by the Infrastructure team
  • Provide technical solutions and fixes to problems through consultations with staff
  • Generate Documentation, Procedures, and Guidelines for the Mujin Infrastructure.


Required Skills

  • A curious and eagerness to learn new things
  • Experience in Linux System Administration
  • Knowledge of Windows Administration, including Active Directory, AzureAD, Group Policy, and Patch Management
  • Hands-on experiences with virtualization platforms, such as configuring hypervisors, virtual networking, and storage connections
  • Familiarity with monitoring and logging systems and their implementation and maintenance
  • Basic understanding of database administration
  • Ability to work with customers (internal or external) in a consultative manner, translating business requirements into technical solutions
  • Strong conceptual understanding of DNS and networking.



  • In a small team with broad responsibilities, the ability to make decisions and implement new technologies, the reporting line is in Japan and currently no time zone crossing.
  • New technology and fast-growth Robotics company
  • Work with talented employees from 26 different countries


Work Location

  • Tatsumi office: 3-8-5 Tatsumi, Koto-ku, Tokyo, 135-0053 Japan


Working Hours

  • 8:45~17:45 (Includes 1-hour break)



  • 2 full days off per week (Saturday, Sunday)
  • Holidays scheduled on the Company’s calendar
  • Paid Leaves
  • Congratulation/Condolence, Maternity/Childcare, Family Caregiver Leave


Expected Salary

  • Flexible depending on experience and skills



  • Commuting Allowance
  • Social Insurance
  • No dress code (You can dress casually)
  • Buffet lunch (Free) 
  • Drinks and Snacks (Free) / High-end coffee machine (Free) 
  • Gym facilities in the office

Mujin develops and sells "intelligent robot controllers" with the goal of building a common platform for industrial robots. Conventional robots are suitable for automating repetitive work, but traditionally they've been hard to install in environments where products and surroundings change. Most robots have complex settings that are hard to change for each use case. Mujin's tech solves this problem using technology called motion planning. It allows them to provide solutions that replace heavy but simple work done by humans with automation by robots. The technology is used primarily for logistics and manufacturing applications.

View Mujin's company page

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IT System Administrator at Mujin
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