Senior Frontend Engineer (Multi-product)English summary from Japanese

sincereed株式会社

✓ Detailed

Salary

6,970,000 yen to 12,000,000 yen

Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

sincereed is an HRTech startup seeking a Senior Frontend Engineer to lead frontend architecture and development for new and existing products. The role involves designing and implementing user-friendly interfaces, contributing to business success, and raising the frontend development capabilities of the entire organization.

Must-haves

Experience developing and operating SPAs using React/TypeScript
Experience designing, launching, and releasing new applications or significant new features from scratch
Experience in maintenance, operation, and continuous improvement after release
Understanding of frontend boundaries, including BFF/API design

Nice-to-haves

Backend development experience using Go or similar, or willingness to contribute to backend development
Experience building and operating design systems
Experience mentoring junior engineers or contributing to the improvement of team technical standards
Habit of continuous technical learning

Tech stack

TypeScript

About the Company

sincereed株式会社

Headquarters

東京都港区高輪2丁目19-17 PMO高輪ゲートウェイ9階

Visit Website

Posted5/25/2026

Sourcefindy