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Frontend Engineer (React Native)

Mujin Inc.Tokyo, Japan (MJHQ)
On-site Full-time

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Experience Level

Experience

Qualifications

Qualifications- Proven experience with React Native and Android application development.- Strong understanding of RESTful APIs and GraphQL.- Familiarity with CI/CD pipelines and modern software development practices.- Excellent problem-solving skills and attention to detail.- Ability to work collaboratively in a fast-paced, cross-functional environment.

About the job

Join Mujin, where we are pioneering automation with MujinOS, our intelligent operating system designed for industrial robotics. By utilizing real-time digital twins, MujinOS connects and orchestrates equipment to enable fully autonomous operations.

At the heart of our technology is Machine Intelligence (MujinMI), offering sophisticated perception, planning, and control algorithms to tackle the most complex automation challenges.

With a client roster that includes globally recognized brands, we are transforming supply chain efficiency. Headquartered in Japan and with expanding teams in China, the U. S., and Europe, we invite you to be part of a vibrant environment where you can influence the future of automation.

Team Overview
As a Frontend Engineer on Mujin’s Warehouse Execution System (WES) and Fleet Management (FM) team, you will be responsible for developing user-centric Android and web applications employed in daily warehouse operations. Your contributions will directly enhance how operators engage with warehouse systems via industrial Android devices and browser-based interfaces.
The team excels in creating reliable, high-quality frontends that operate in challenging production settings, where stability, performance, and user experience are crucial. You will collaborate closely with backend engineers, product managers, designers, and operations teams to deliver intuitive, responsive, and maintainable interfaces that facilitate long-term workflows and mission-critical operations at scale.

Key Responsibilities

React Native Development
- Design, develop, and deliver React Native features for Android platforms.
- Translate UI designs and product specifications into functional interfaces.
- Integrate applications with backend APIs (REST/GraphQL), authentication, and analytics.
- Troubleshoot and resolve issues across various devices and operating systems; enhance overall stability.
- Optimize application performance and responsiveness.
- Write tests and assist in CI/CD and release methodologies.
- Participate in code reviews and uphold code quality through refactoring.
- Collaborate with product, design, and backend teams to create end-to-end features.
Android Application Development
- Design, build, and maintain Android applications tailored for industrial devices utilized in warehouse settings.
- Develop features that directly interact with device hardware components, including barcode scanners, cameras, and physical buttons.

About Mujin Inc.

Mujin Inc. is at the forefront of industrial automation, developing cutting-edge technologies that enhance operational efficiency. Our innovative solutions are trusted by leading global companies, and we continue to grow our influence across various markets.

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