In-house Product | Frontend Engineer - Lead Frontend Development (Planning to Tech Selection) for In-house and Major AX Products - Elevate Team Skills and Evolve ProductsEnglish summary from Japanese

株式会社オプティム

✓ Detailed

Salary

570-830万円

Location

＜勤務地＞東京都港区海岸1丁目2番20号　汐留ビルディング18F ※リモート：可（週3日以上出社、週2日リモート）（変更の範囲）会社の定める事業所

Job Type

Full-time

Work Style

・休憩時間：1時間・平均残業時間：20時間（2026年7月時点）

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Role summaryEnglish summary from Japanese

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

Lead frontend development for in-house products and major AX products, participating from the planning stage to technical selection and architecture design. You will also be responsible for elevating the team's frontend skills and evolving products.

Must-haves

Experience in frontend design and implementation using React, Next.js, and TypeScript.
Experience in frontend screen design and improvement proposals with a focus on user experience (UX/UI).
Experience in component design considering reusability, and building common libraries and rules for frontend.
Experience in designing and reviewing API interfaces in collaboration with backend engineers.
Experience in organizing documentation and establishing/updating quality testing mechanisms (e.g., frontend testing).

Nice-to-haves

Experience in full utilization of AI (LLM) and code generation tools to improve development/implementation processes.
Experience in frontend development using Vue.js.
Experience in mobile/client application development using Swift, Kotlin, Objective-C, Java, C++, or C#.

About the Company

株式会社オプティム

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Posted7/9/2026

Updated2026-07-12 23:31:36

Sourcelevtech

In-house Product | Frontend Engineer - Lead Frontend Development (Planning to Tech Selection) for In-house and Major AX Products - Elevate Team Skills and Evolve ProductsEnglish summary from Japanese

Role summaryEnglish summary from Japanese

Must-haves

Nice-to-haves

About the Company

Tech stack