• Full-time

Publication date: 2025.06.02

Company name not disclosed

Software Engineer(Frontend) (13380)

  • System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
  • Tokyo
  • Salary ¥4M-7.4M
ソフトウェアエンジニア(フロントエンド) (13380)
職種Position System Engineers / Infrastructure Engineers / Web Engineers / Game Developers
会社概要Company profile [Company Overview]
A corporate venture originated from ITOCHU Corporation, offering services such as used smartphone purchasing, sales, and rentals.
We operate "NicoSma" and "Belong Purchase" for individuals, and provide several B2B solutions including:

Belong One Rental Plan

Belong One Sales Plan

Belong Purchase for Biz

[Attractive Points of the Company / Role]
Contribute to a mission: "Deliver value you can be proud of to the people who matter most."

Be part of a socially impactful business that promotes reuse of smartphones and other devices.

Work in an environment that allows for flexible and adaptive development tailored to diverse user needs.

Opportunity to enhance your skills using modern technologies such as APIs and web services.

Enjoy flexible working hours (flextime system) that support various lifestyles.

Comprehensive benefits, including health checkups, transportation allowance, and employee discounts.

Collaborate with your team to tackle complex challenges thoughtfully.

A challenging role where you can create and deliver new value to the market.
仕事内容Job description *This position is available only for people residing in Japan
【Background】
Frontend engineers in this role are expected to take initiative and ownership across the entire lifecycle of internal and external web UIs—from design and development to testing and operations. Writing clean, reusable, and readable code based on best practices is emphasized, along with close collaboration with backend engineers for API design.
The company operates a variety of services, including consumer-facing platforms like a smartphone sales and trade-in service, corporate solutions, and internal tools. This creates a wide range of opportunities for frontend engineers to contribute. We’re looking for team members who are excited to enhance user experience and accelerate development speed in a growing service environment.

【Responsibilities】

Develop and maintain frontend for the consumer platform and trade-in services

Build admin dashboards for internal tools and inventory management systems

Customize Shopify and create/manage apps for storefront and backend improvements
Scope of work may change based on company needs

■ Development Environment
Languages: HTML, CSS, TypeScript
Frameworks/Libraries: React, Next.js
Infrastructure: Google Cloud (e.g. Cloud Run)

■ What Makes This Engineering Role Unique

Agile development with responsibilities assigned by phase (e.g., requirement gathering, design)

Involvement in various stages of the product lifecycle—from design to operations—not just implementation

Engineers can participate in product planning meetings and contribute to feature discussions

Opportunities to explore areas beyond your specialty, such as backend or product discussions

Regular internal tech talks and open forums are held, welcoming engineers from all areas

Hybrid work style with 2–3 in-office days per week
応募資格Requirement 【Must-Have Skills】
Japanese language proficiency at JLPT N2 level
Strong understanding of computer science fundamentals, data structures, and algorithms to solve abstract and complex problems
Understanding of Software Development Life Cycle (SDLC), including version control systems and CI/CD
2+ years of experience in backend development using Go, Java, TypeScript, or in frontend development
Basic knowledge and hands-on experience with HTML and CSS
Basic knowledge and hands-on experience with TypeScript
Experience with frontend frameworks/libraries such as React, Next.js, or Vue.js
【Nice-to-Have Skills】
Experience with public cloud platforms like Google Cloud
Experience with SEO optimization for e-commerce and using tools like Google Analytics or Google Tag Manager
Experience working with GraphQL
Basic knowledge and experience with databases
Experience developing with design tools like Figma
Experience with Shopify development
Experience using automated testing tools such as Cypress
Experience mentoring or managing junior members
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 Flexible working hours with core time11:00~15:00
想定年収Salary ¥4M-7.4M
条件・待遇Condition Employment Type: Full time
Trial period: months:3months
Estimated annual income: 7M-12M Yen
Work location: Tokyo
Working hours:Flexible working hours (core time: 11:00 AM – 3:00 PM)
Holidays: 2 days a week (Saturdays and Sundays), national holidays
Vacation: Summer vacation, year-end and New Year holidays, and other vacations available
Overtime: Average month
Benefits: Comprehensive social insurance, commuting allowance (according to company policy), condolence leave, maternity and childcare leave, parental leave, Sick Leave (10 days per year granted separately from paid leave for personal illness or injury), Family Emergency Leave (10 days per year granted separately from paid leave, usable for family emergencies, childcare, or caregiving).
Remote work is available, with on-site attendance recommended 2–3 times per week.
選考についてProcess
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