CareerCross uses cookies to enhance your experience on our websites. If you continue to view our sites without changing your browser settings, then it is assumed that we have your consent to collect and utilise your cookies. If you do not want to give us your consent, then please change the cookie settings on your browser. Please refer to our privacy policy for more information.
CareerCross uses cookies to enhance your experience on our websites. If you continue to view our sites without changing your browser settings, then it is assumed that we have your consent to collect and utilise your cookies. If you do not want to give us your consent, then please change the cookie settings on your browser. Please refer to our privacy policy for more information.
Senior Full Stack Engineer - Lead Scalable Product Design
| Location | Tokyo - 23 Wards |
| Job Type | Temporary |
| Salary | 2.5 million yen ~ 8.5 million yen |
Job Description
This is a senior-level opportunity to lead the design and development of scalable, customer-facing applications across web and mobile platforms. You will bridge front-end and back-end systems while mentoring engineers and shaping best practices in a high-impact environment.
Client Details
A large-scale, technology-driven organization in the digital services space, supporting millions of users through robust B2C platforms. The team focuses on delivering high-quality system development aligned with business and executive priorities.
Description
- Design, develop, and maintain front-end (React.js, React Native) and back-end (Spring Boot, Java, Redis) components
- Build reusable components and scalable front-end libraries
- Translate UI/UX designs and wireframes into high-quality, production-ready code
- Architect system structures, APIs, and database schemas for performance and scalability
- Optimize application performance across devices, browsers, and environments
- Collaborate with Product Managers and designers to deliver seamless user experiences
- Drive best practices in development and provide mentorship to junior engineers
- Manage integrations, APIs, and system environments to ensure reliability
Job Offer
- Opportunity to lead architecture and system design in a senior role
- Exposure to large-scale, high-traffic digital platforms
- Collaborative, cross-functional international team environment
To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.
General Requirements
| Minimum Experience Level | No experience |
| Career Level | Mid Career |
| Minimum English Level | Fluent |
| Minimum Japanese Level | Basic |
| Minimum Education Level | Bachelor's Degree |
| Visa Status | Permission to work in Japan required |
Required Skills
- 7-10 years of experience in front-end or full-stack development
- Strong proficiency in JavaScript and TypeScript
- Solid experience with React.js and React Native
- Hands-on experience with Spring Boot (Java) and Redis
- Familiarity with RESTful APIs and modern authentication (e.g., JWT)
- Experience with state management tools (Redux, MobX)
- Proficient with Git or similar version control systems
- Strong problem-solving ability and troubleshooting skills
- Bachelor's degree in Computer Science or equivalent experience
- Business-level English or above
- Experience with GraphQL or Node.js
- Understanding of Agile methodologies
- Contribution to open-source or active GitHub presence
Job Location
- Tokyo - 23 Wards
Work Conditions
| Job Type | Temporary |
| Salary | 2.5 million yen ~ 8.5 million yen |
| Industry | Software |
