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Backend Software Engineer (Go)

JapanJapan·TokyoFull-Time (English)mid
Software EngineerSoftware Engineering
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Quick Summary

Overview

Mujin is a global leader in industrial automation, redefining supply chain efficiency through MujinOS—our intelligent operating system for robotics. At our core is Machine Intelligence (MujinMI),

Technical Tools
Software EngineerSoftware Engineering

Mujin is a global leader in industrial automation, redefining supply chain efficiency through MujinOS—our intelligent operating system for robotics. At our core is Machine Intelligence (MujinMI), a unique approach that leverages real-time digital twins and advanced perception, planning, and control algorithms to achieve fully autonomous operations.

Our flagship product, MujinController, empowers users with a highly configurable, no-code interface. By integrating cutting-edge motion planning and computer vision, it enables seamless automation for complex applications such as palletizing, picking, and truck unloading.

Headquartered in Japan with a growing presence in the US, China, and Europe, we invite you to join a dynamic environment where you can shape the future of automation.


Mujin Portal is a cloud-based product that enables customers and Mujin engineers to manage and support Mujin robotic systems deployed across multiple sites.

With Portal continuing to expand, the team is focused on both new product capabilities and scaling the platform to support a growing fleet of connected Mujin Controllers. This includes areas such as controller connectivity and remote access, data synchronization and storage, backups, monitoring and dashboards, virtual controllers, and customer support workflows.

As a Backend Software Engineer, you will design and develop backend services that power these capabilities. You will work with large volumes of data generated by connected robotic systems and take ownership of services and features from design through implementation and ongoing improvement.

  • Design, develop, and maintain backend services for Mujin Portal using Go
  • Build GraphQL APIs and services for managing fleets of connected Mujin Controllers
  • Develop systems for collecting, synchronizing, storing, and processing Controller data
  • Build secure remote access, authentication, and multi-tenant access control
  • Design and improve backend architecture for scalability, reliability, and maintainability
  • Independently own backend features or services from design through implementation and maintenance
  • Hands-on experience designing and developing backend services in Go
  • Strong experience with PostgreSQL or other relational databases, and data modeling
  • Solid understanding of system design and software architecture
  • Ability to independently own and deliver backend features or services
  • Strong problem-solving and communication skills
  • Background in building distributed or cloud-based backend systems
  • Familiarity with concurrent or asynchronous programming
  • Experience with GraphQL, WebSockets, or other real-time APIs
  • Experience with authentication and authorization (OAuth 2.0, OIDC) and secure system design
  • Hands-on exposure to Kubernetes and AWS or other major cloud platforms
  • Experience with IoT, robotics, or systems connecting cloud software with physical devices
  • 3-8-5 Tatsumi, Koto-Ku, Tokyo 135-0053, Japan

    8:45 - 17:45 (with a 60-minute break)

    • Based on experience and skills
    • Salary revision twice a year
    • Additional bonuses are available based on performance
    • Every Saturday and Sunday
    • Annual paid leaves
    • Maternity leave and Childcare leave
    • Flex Holiday (take public holidays on days of your choice)
    • Other holidays as defined by the company

    What We Offer

    ~1 min read
    ✓Flexible dress code policy
    ✓Commuting allowance
    ✓Japanese Social Security (Health Insurance, Pension, Labor Insurance)
    ✓Monthly team dinner support
    ✓Free buffet lunch every workday
    ✓Free vending machines (offering drinks and snacks)
    ✓High-end coffee machine
    ✓Exclusive Employee Gym Access
    • Visa sponsorship
    • Flight ticket support
    • Shipping expenses coverage up to a specified limit
    • Assistance for housing

    Location & Eligibility

    Where is the job
    Tokyo, Japan
    On-site at the office
    Who can apply
    JP

    About this job

    Who can apply
    Japan
    Posted
    Today
    Employer
    has 95 open jobs on Jobera in 2 countries.

    Listing Details

    Posted
    November 10, 2026
    First seen
    November 10, 2026
    Last seen
    November 10, 2026

    Posting Health

    Days active
    0
    Repost count
    1
    Trust Level
    53%
    Scored at
    November 10, 2026

    Signal breakdown

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    Backend Software Engineer (Go)