Mobile Engineer (React Native)

Overview

Job Description

About the Role
We are looking for a React Native Engineer to join our team in building robust, scalable, and high-performance mobile applications. You will work closely with engineers, designers, and product managers to deliver seamless mobile experiences using modern tools and best practices.

Responsibilities and Duties

• Develop and maintain mobile apps using React Native and TypeScript.
• Work closely with design and backend teams to implement features.
• Produce clean, maintainable, and testable code.
• Debug and fix cross-platform issues.
• Integrate RESTful APIs and external SDKs.
• Participate in team code reviews and discussions.

Requirements

Required Skill-set

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
• 3+ years of total professional experience, with 2+ years of React Native experience.
• Proficiency in TypeScript and JavaScript, alongside experience with frameworks like React.js and Next.js.
• Familiarity with mobile design patterns and performance tuning.
• Experience using testing frameworks like Jest or Detox.
• Demonstrated experience publishing apps to the App Store and Google Play.
• Hands-on experience with Firebase and mobile analytics SDKs.
• Experience with Git and version control workflows.
• Familiarity with app performance monitoring and crash reporting tools (e.g., Sentry, Bugsnag, Datadog).
• Track record of developing products in an agile development environment and working knowledge of scrum activities.
• Fluency in English (Business level)

Good to have Skill-set

• Exposure to native module integration in React Native.
• Experience with Redux, Zustand, or other state management libraries.
• Familiarity with CI/CD pipelines (e.g., GitHub Actions, Bitrise).
• Basic knowledge of performance monitoring and crash reporting tools.
• Interest in learning new tools, frameworks, and technologies.
• Experience working in Agile teams.
• Fluency in Japanese (Conversational level)