Payment Services Frontend Engineer

This is a frontend engineering role for USEN PAY, a cashless payment service for stores. The engineer will develop and improve payment-related web applications used daily by users, including merchant administration screens. Responsibilities include designing and implementing user-facing applications, UI/UX-conscious screen design, feature development, refactoring, code reviews, frontend development rules and design policies, development-environment improvements, and application maintenance, operations, and ongoing improvement. The role also involves application-wide design discussions with backend and infrastructure teams.

The frontend stack is TypeScript, React, and Tailwind CSS. The backend uses Kotlin and Spring Boot. Testing tools are Vitest, Playwright, and kotest. Infrastructure uses AWS and Terraform. The development and operations platform includes Docker, GitHub, GitHub Actions, and GitHub Copilot. JIRA, Notion, and Figma are used for project management and collaboration.

The development organization is being established to promote in-house development. The listed team consists of one product manager, two frontend members, four backend members, and one infrastructure member, with two company employees and six partner members. The role works closely with product management and business-side members and participates in discussions about product purpose, technology selection, and architecture. Possible career paths described in the posting include backend specialist, frontend expert, SRE, tech lead, manager, and CTO.

Required qualifications are at least three years of React development experience, code review experience, interest in advanced technologies, and an understanding of Agile development. Experience evaluating development productivity and experience developing junior engineers are welcome qualifications. The posting seeks people who take ownership of product and team issues, continue learning about new technologies and the business domain, and work respectfully with team members.

Group onboarding covers group systems and internal systems. The assigned department then provides business onboarding and familiarization with current development rules and the development environment.

This is a full-time regular employee position at PMO Meguro, 2-15-21 Kamiosaki, Shinagawa-ku, Tokyo 141-0021. The work system is flextime without core hours, with a standard seven hours and 30 minutes per day, a 60-minute break, and an example schedule of 9:30–18:00. Hybrid work may be arranged as Office Worker, normally with at least three office days per week, or Remote Worker, normally with at least three remote-work days per week. Office attendance may be requested for face-to-face communication or meetings, and full remote work can be discussed according to skills, experience, and role.

Annual compensation is JPY 5,000,000–10,000,000. One fourteenth of the annual amount is paid monthly, with another one-fourteenth paid in June and December. The monthly amount includes deemed wages for 25 hours, and the annual amount is reviewed once a year in November. Holidays and leave include at least 120 annual holidays, annual paid leave, five consecutive summer days between July and October, year-end and New Year leave from December 30 through January 4, five consecutive refresh-leave days every three years, condolence leave, maternity and postnatal leave, childcare and nursing-care leave, and shortened working hours for childcare and nursing care. Benefits include social insurance, transportation expenses, a Remote Worker allowance, condolence payments, qualification incentives, service discounts, employee shareholding, savings, defined-contribution pension, group insurance, health checkups and medical examinations, recreation and resort facilities, sports and theme-park subsidies, flu vaccinations, online medical consultation, and other listed employee discounts and support programs.