Web Frontend Engineer (Manager / Member)

Background

bitFlyer is renewing the UI/UX of its web frontend and strengthening its development structure for future feature expansion and better user experiences. We are growing the team to balance the current members' workload and continuously raise our development capabilities. In this position, we are looking for an engineer who can contribute to increasing the product's value through frontend development.

Responsibilities

  • Designing and developing web frontend UIs using modern frameworks such as React and Vue

  • Participating in UI/UX renewal projects for existing services

  • Proposing and implementing improvements to code quality and maintainability

  • Defining requirements and coordinating specifications with business and design teams

  • Designing and implementing for long-term operation and improving continuously

Scope of change in duties: After joining, you may be reassigned to any duties designated by the company.

Required Skills & Experience

■Japanese (conversational level)
■Frontend development experience using modern frameworks such as React, Vue, or Angular (3+ years)

Preferred Skills & Experience

■English (business level)
■Experience developing and operating web frontends for in-house services with a large user base
■Development experience with SSR (server-side rendering), Next.js, Nuxt.js, etc.
■Experience with large-scale refactoring or modernizing legacy code
■Hands-on experience with agile development (Scrum, etc.)
■Experience coordinating requirements with business and design departments
■Development experience with JavaScript (ES6+) or TypeScript

Who We Are Looking For
bitFlyer is a multinational team of professionals, bringing together talented members from around the world. We are looking for people who, regardless of age or nationality, think and act with passion and turn ideas into results. We are fully committed to creating the future of next-generation finance and blockchain.
Salary

■Expected annual salary: ¥6,000,000–¥12,000,000
※Includes a fixed overtime allowance for 45 hours per month
※Determined based on experience, skills, and most recent annual compensation

■Monthly salary breakdown
Base salary: ¥369,800–¥739,800
Fixed overtime allowance: ¥130,200–¥260,200 (for 45 hours)
※If fixed overtime hours are exceeded, additional premium pay is provided for overtime, late-night, and holiday work
※Performance-based bonuses are paid separately

Working Hours

■Employment type: Full-time (no fixed term)
■Probation period: 6 months (no change in working conditions during probation)
■Working hours: 9:00–18:00 (flextime system; core time 10:00–16:00)
■Break: 60 minutes (provided during working hours)
■Overtime work: Yes
■Measures to prevent passive smoking: No smoking indoors

Holidays & Leave

■Two days off every week (Saturday and Sunday) ※Days off may differ when a shift system applies.
■National holidays
■Year-end and New Year holidays
■Congratulatory and condolence leave
■Maternity leave (pre- and postnatal)
■Childcare leave
■Birthday leave
■Annual paid leave (12 days in the first year)

Benefits

■Commuting allowance
■Full social insurance (health insurance, employees' pension, employment insurance, workers' accident compensation insurance)
■Drinks & food
■Massage service
■Visa acquisition support
■Book purchase program
■Language training program
■Babysitter subsidy program
■Friday social gatherings
■Quarterly social events
■Welcome lunch

Work Location

Midtown Tower, 9-7-1 Akasaka, Minato-ku, Tokyo
(Directly connected to Exit 8 of Roppongi Station on the Toei Oedo Line / directly connected via an underground passage to Roppongi Station on the Tokyo Metro Hibiya Line)
※In principle, we currently work on-site at the office.
Scope of change: Any location designated by the company

English
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