Release Engineer (Developer Experience / DevEx) at Mujin Corp. · Tokyo

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.

About the Role

• This role is for someone who enjoys improving how software is delivered—not just building features.
• At Mujin, we are hiring a Release Engineer to join a small but growing Release team. You will play a key role in shaping how our software is packaged, validated, and delivered as reliable product releases at scale.
• Regular releases are critical to maturing MujinOS as a product, ensuring consistent quality and completeness across complex systems. Turning ongoing development into stable, releasable versions requires significant coordination, validation, and cross-team effort.
• In this role, you will make releases more predictable, efficient, and scalable by improving workflows, tooling, and quality gates—while staying hands-on with release-stage QA and integration validation.
• You will work closely with engineers responsible for our core software systems, QA, and documentation owners, helping ensure that what is built can be confidently released, clearly understood, and effectively used by both internal teams and end users.

Responsibilities

• Help improve and evolve existing end‑to‑end release processes and workflows
• Participate hands‑on in release-stage integration and regression QA
• Help define and uphold release quality gates together with developers and QA
• Work with stakeholders to better understand our end users' needs for issue tracking and management and help improve and maintain the issue tracking tools/systems and workflows
• Help improve release notes and release visibility by understanding how users consume releases and implementing improvements to increase adoption and usage awareness
• Drive practical AI usage in release workflows (e.g. release note drafts, change aggregation)

Minimum Requirements

• 5+ years of hands‑on experience in Release Engineering or similar roles (e.g. Release Engineer, Product Enablement, DevEx, release‑focused DevOps)
• Practical experience designing and running real production release workflows
• Strong understanding of system‑level testing and release QA
• Experience working with planning or tracking tools (e.g. Jira or equivalents)
• Comfortable working cross‑functionally and owning ambiguous initiatives

Preferred Requirements

• Experience with AI tools in software delivery or documentation workflows
• Background in environments with remote or limited deployment control

Interview Process:

• Resume Screening
• Take-home coding test
• HR interview
• Technical interview
• Culture/Team fit interview

Attractives

• Own and define the release function rather than inherit a fixed framework

• High impact on developer productivity and product quality

• Hands‑on role with strong influence across engineering, QA, and documentation

• Opportunity to bring AI into real, production release workflows

Location

3-8-5 Tatsumi, Koto-Ku, Tokyo 135-0053, Japan

Work Hours

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

Salary

• Based on experience and skills
• Salary revision twice a year
• Additional bonuses are available based on performance

Holidays

• 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

Company Benefits

• 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

Japan Relocation Support

• Visa sponsorship
• Flight ticket support
• Shipping expenses coverage up to a specified limit
• Assistance for housing