Frontend Engineer (Engineering Dept.) - Drive Product CreationEnglish summary from Japanese

オープングループ株式会社

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Salary

年収 501万円〜 903万円月給：380,000〜680,000 ‐基本給：221,000〜298,000 ‐業務手当：99,000〜177,000 ‐役職手当：0〜75,000 ‐住宅手当（一律支給）：30,000〜100,000 ‐ワークスタイル手当（一律支給、固定通勤費等）：30,000〜30,000 *業務手当は月45時間相当の固定残業代、超過分は別途支給 *年収に成績賞与標準額（2回/年）を含む

Location

東京都港区西新橋3-3-1 KDX西新橋ビル 3階

Job Type

Full-time

Work Style

9:00〜18:00（休憩60分） ※チームにより、早出・遅出・中抜け等をフレキシブルに認めている場合あり・完全週休2日制（土日祝）・夏季休暇3日（7月〜9月の間で任意取得）・年末年始休暇(12/29〜1/3) ・有給休暇（入社日5日付与、勤務半年経過後5日付与）・創立記念日休暇（年1日）・慶弔休暇、特別休暇、産休・育休　等

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Role summaryEnglish summary from Japanese

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

Open Inc. is seeking a Frontend Engineer to drive product creation from 0 to 1. You will be responsible for redesigning and building the frontend foundation of the PRESCO ASP management screen, replacing the existing JSP frontend with Next.js. This role involves optimizing front architecture, asynchronous processing, and UX improvement within a small, elite team.

Must-haves

Modern frontend design and implementation skills using TypeScript/Next.js
Design skills that consider performance, including asynchronous processing and API integration
Ownership and driving force to independently propose improvements
Proactive communication and initiative within a small team

Tech stack

TypeScriptNext.jsJavaJSPMySQL 8AWS EC2

Work style

Full remote available. You can choose whether to work remotely or come to the office. Suitable for those proficient in online communication.

Other notes

About the Company

オープングループ株式会社

Headquarters

Founded

2000-04

Visit Website

Posted4/24/2026

Sourceherp