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 Senior Software Engineer for the DevOps team. The team is currently small, and you will play a key role in building and optimizing large-scale C/C++ build systems, with CI infrastructure supporting the workflow.
Responsibilities
Own the architecture and technical direction of Mujin's build systems.
Drive technical decisions regarding dependency management, build graph design, toolchain integration, and build-performance optimization.
Identify architectural bottlenecks and propose long-term improvements to build-system maintainability and developer productivity.
Create prototypes and technical proposals to evaluate and communicate architectural improvements.
Manage and improve CI infrastructure and developer tooling that support the build ecosystem.
Collaborate with engineering teams to improve development workflows, build reliability, and engineering productivity.
Minimum Requirements
Experience owning or driving the architecture of large-scale C/C++ build systems.
Deep understanding of build-system architecture, dependency management, compiler toolchains, linkers, build reproducibility, and build-performance optimization.
Strong knowledge of CMake and modern C/C++ build environments.
Experience integrating build systems within CI/CD pipelines.
Proficiency in at least one programming language used for internal tooling (Python or Go).
Working knowledge of Bash scripting, Linux administration, and containerized environments (Docker, Kubernetes, etc.).
Proficiency with Git version control and collaborative development workflows.
Preferred Requirements
Hands-on experience with Bazel, JHbuild, or Gnome build tools, or building complex, distributed build systems.
Knowledge of package management systems across multiple languages (Python, C++, Rust, or JavaScript).
Experience with Kubernetes
Experience writing technical proposals and design specifications.
Familiarity with Agile software development.
Ideal Candidates
Ideal candidates have experience in roles such as:
Build Systems Engineer
Build Infrastructure Engineer
Developer Productivity Engineer
Compiler Infrastructure Engineer
Candidates whose primary experience is limited to CI/CD operations, platform administration, or release management without ownership of build-system architecture may not be a strong fit.
Interview Process:
Resume Screening
Take-home coding test
HR interview
Technical interview
Culture/Team fit interview
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