Mirrai Careers

Platform Engineer

Mujin

Tokyo, Japan (MJHQ) Posted 2d ago
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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 Mujin is hiring a Platform Engineer to join our Engineering Enablement team and help build the internal services, tools, and workflows that enable engineers to develop, test, release, and support software effectively. This is a software engineering role focused on improving the developer experience across a broad range of areas, including CI/CD, build tooling, release workflows, internal support workflows, documentation tooling, and log collection. Rather than focusing only on operating infrastructure, you will design and develop services, command-line tools, and automation used by engineering teams across Mujin. RESPONSIBILITIES Build software that engineers rely on: Develop and improve internal tools and services that support engineers across Mujin. Shape the developer experience: Work across CI/CD, build tooling, release workflows, documentation tooling, log collection, and internal support workflows. Work on a broad range of engineering problems: Contribute to both new tools and existing systems, with opportunities to work across Rust, Go, and Python. Build for modern development environments: Develop and improve tooling and services used in containerized environments, including Docker and Kubernetes.   MINIMUM REQUIREMENTS * 3+ years of professional software engineering experience * Hands-on experience designing and building software services, command-line tools, developer tools, or internal engineering systems * Professional programming experience with at least one general-purpose language such as Rust, Go, Python, C++, or a comparable language * Experience contributing to software across multiple technical areas or layers of a system * Understanding of software development workflows, including areas such as CI/CD, build systems, testing, deployment, or release processes * Ability to collaborate with engineers and understand the needs of internal users PREFERRED REQUIREMENTS * Experience working in a Platform Engineering, Developer Experience, Engineering Enablement, or similar team * Experience building tools or services used by a large engineering organization * Experience with Rust, Go, or Python INTERVIEW PROCESS * Resume Screening * Take-home coding test * HR interview * Technical interview * Culture/Team fit interview ATTRACTIVES Impact engineering at scale: Build tools and services used by engineering teams across Mujin. Broaden your engineering experience: Work across a wide range of areas, from CI/CD and build tooling to release and support workflows. Build, not just operate: This is a software engineering role where you will develop tools and services, rather than focusing primarily on infrastructure operations. 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 Explore Mujin Perks & Welfare 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

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