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Lead Full Stack Engineer | Java & React

Tokyo 23 Wards Temporary ¥7,000,000 - ¥8,500,000 per year Foreign Multinational View Job Description
Join a large-scale digital transformation team responsible for delivering customer-facing platforms used by millions of consumers. This senior-level opportunity combines hands-on engineering, technical leadership, and cross-functional collaboration across web and mobile application development.
  • Lead architecture and development of large-scale customer platforms
  • Work across web and mobile technologies with strong autonomy

About Our Client

Our client is a leading enterprise in the digital services and telecommunications sector, operating large-scale consumer platforms and investing heavily in modern technology solutions. The organization offers the opportunity to work on high-impact products within an international and innovation-driven environment.

Job Description

  • Lead the design, development, and maintenance of scalable web and mobile applications.
  • Develop customer-facing solutions using React.js, React Native, Spring Boot Java, and Redis.
  • Build reusable front-end components and shared libraries to accelerate future development.
  • Translate UI/UX designs and wireframes into high-quality, maintainable code.
  • Design robust system architectures, data structures, and database models.
  • Manage APIs, server-side integrations, and application environments.
  • Optimize applications for performance, security, scalability, and reliability.
  • Collaborate closely with Product Managers, Designers, and Engineering teams to deliver new product features.
  • Promote engineering best practices, code quality standards, and development efficiency.
  • Provide technical guidance and mentorship to other developers where required.



The Successful Applicant

  • 7-10 years of professional software development experience.
  • Strong expertise in JavaScript and TypeScript.
  • Hands-on experience with React.js and its core principles.
  • Experience developing mobile applications using React Native.
  • Strong back-end development experience with Spring Boot Java and Redis.
  • Solid understanding of RESTful APIs and modern authentication/authorization mechanisms.
  • Experience with state management frameworks such as Redux or MobX.
  • Knowledge of JSON Web Token (JWT) and related security practices.
  • Experience using Git and modern software development workflows.
  • Strong analytical and problem-solving capabilities.
  • Bachelor's degree in Computer Science, Engineering, or a related discipline, or equivalent practical experience.

Preferred Qualifications

  • Experience with GraphQL.
  • Familiarity with Node.js or other server-side technologies.
  • Understanding of Agile development methodologies.
  • Contributions to open-source projects or an active GitHub portfolio.

What's on Offer

  • Long-term project engagement with business-critical systems.
  • Opportunity to influence architecture and technology decisions.
  • Exposure to large-scale, high-traffic digital platforms.
  • Collaborative international working environment.
  • Opportunity to work alongside experienced engineers on challenging, high-impact projects.



Contact
Serena Wu
Quote job ref
JN-082026-7091355
Phone number
+81 3 6627 6137

Job summary

Function
IT
Specialisation
Programming / Development
Specialisation
Technology & Telecoms
Location
Tokyo 23 Wards
Job Type
Temporary
Consultant name
Serena Wu
Consultant phone
+81 3 6627 6137
Job Reference
JN-082026-7091355
Company Type
Foreign Multinational

Diversity & Inclusion at Michael Page

We don't just accept difference - we celebrate it. We encourage applicants from all backgrounds to apply for this role and are committed to building inclusive, diverse workplaces where everyone can thrive. If you require any support or reasonable adjustments during the recruitment process, please let us know.