• Full-time

Publication date: 2025.04.17

Full stack Developer (13249)

  • System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
  • Tokyo
  • Salary 4M~6M
Full stack Developer (13249)
職種Position System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
会社概要Company profile [Company Overview]
Founded in 2015 and headquartered in Tokyo, this is a lifestyle infrastructure service company for foreign visitors and residents in Japan.
The hiring company is a very dynamic company that was listed on the Tokyo Stock Exchange Growth Market in 2023.

The main business activities are as follows.
・Wi-Fi business
・Camper van business
・Life media tech business
・Media business
・Chat concierge business
・Consulting business, etc.
仕事内容Job description The company is looking for a full-stack engineer to lead the development of the entire web application, which is high-performance, scalable, and easy to maintain.
In this position, you will be involved in a wide range of work, from the front-end that supports the user experience to robust and flexible back-end infrastructure design.
This position will support the product from the ground up, in order to create a service that combines intuitive, comfortable operability with high reliability.

Key Duties
- Lead technology selection and architecture design to support rapidly growing products and organizations
- Develop and operate scalable and sustainable front-end and back-end applications
- Formulate a goal-aligned technology strategy and provide technical leadership to the development team
- Drive product improvements and new feature development through data-driven decision-making
- Design and develop reusable UI components and robust APIs
- Work with the design team to improve UI/UX and validate results based on user research
- Design and operate cloud infrastructure (AWS) and improve CI/CD pipelines
- Research, evaluate, and select frameworks, libraries, and middleware to use

Tools Used
Front-end: TypeScript, React, Next.js
Back-end: PHP, Laravel, TypeScript, Node.js (Express, Fastify, NestJS)
Infrastructure: AWS
DevOps & Monitoring: GitHub, GitHub Actions, Datadog, MixPanel, Sentry
API Development: GraphQL, REST
Authentication: AWS Cognito
Other Tools: GitHub Copilot, Figma, Storybook
Communication & Collaboration: Slack, JIRA, Miro, Confluence
応募資格Requirement [Required Skills]
- 3+ years of experience in web application development (both front-end and back-end)
- High proficiency in TypeScript and modern front-end frameworks (React, Next.js)
- Back-end development experience using Node.js or PHP (Laravel)
- Demonstrated technical decision-making in architecture design, technology selection, and service design
- Fluent communication skills in Japanese (Japanese Language Proficiency Test N2 or above preferred)

[Preferred Skills]
- Experience developing and operating large-scale web applications
- API design and integration experience using GraphQL or REST
- System design and operation experience using cloud services (e.g., AWS)
- Experience building CI/CD pipelines and automated testing environments
- UI design and implementation with responsiveness and accessibility in mind
- Experience using state management libraries such as Redux and Zustand
- Knowledge of performance tuning and cross-browser optimization
- BFF (Backend for Understanding of the latest web technologies, including frontend, SSR, SSG, and PWA.

[Desired Candidates]
・Enjoy working with a team to create services
・Enjoy solving difficult problems with a positive attitude
・Actively adopt new technologies and systems
・Flexible and proactive in problem-solving
日本語力Japanese level Business
雇用形態Employment type Full-time
勤務エリアLocation Tokyo
勤務時間Working hours 10:00〜19:00 (break 1hour)
想定年収Salary 4M~6M
条件・待遇Condition [Conditions]
Employment Type: Full-time
Salary: Annual salary of ¥4,000,000 - ¥6,000,000
*Probationary period is six months. Conditions remain unchanged.
Payment Method: 1/12 of annual salary paid monthly
Monthly Salary: ¥333,400–¥500,000 (Fixed Night Shift: ¥63,400–¥95,000; excess amounts paid separately)
Other Fixed Allowances: None
Work Location: Tokyo (subject to change), Head Office, sales offices nationwide, and employee homes
Work Hours: 10:00–19:00 (1-hour break)
Holidays
・Two days off per week
・New Year's Holiday
・Annual Paid Leave
・Maternity Leave, Childcare Leave
・Condolence Leave
Benefits
・Microwave and refrigerator provided
・Water dispenser provided
・Paid Vacation
・Maternity and Childcare Leave System
・Transportation Expenses Reimbursed (up to ¥30,000/month)
・Up to 50% Off Lunch Box Costs
Insurance: Health Insurance, Employee Pension Insurance, Employment Insurance, Workers' Accident Compensation Insurance
選考についてProcess
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