Entrusted with backend development of our main in-house SaaS / Grow with a modern development environment utilizing the latest AWS and AI, working on design and implementation in a small team.English summary from Japanese

株式会社リバスタ

✓ Detailed

Salary

5-6.1 million yen

Location

＜本社＞東京都江東区豊洲5-6-36　豊洲プライムスクエア9F ※リモート：可（承認制）（雇入れ直後）東京本社（変更の範囲）会社の定める場所

Job Type

Full-time

Work Style

・標準勤務時間：9:00～18:00 ・休憩時間：1時間・平均残業時間：10時間以下（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.

Backend engineers will be responsible for the development of the company's main in-house SaaS products, such as 'e-reverse.com', 'Buildee', and 'GENBATON'. You will work in a small team of 3-5 people, handling everything from design to implementation, and contribute to the continuous development of large-scale SaaS.

Must-haves

Experience in backend development using languages like C# (.NET Core), Ruby on Rails, or Python.
Experience in system construction utilizing AWS (Aurora, DocumentDB, Fargate, etc.).
Experience in Docker environments and container operations.
Willingness to participate in requirements definition and upstream processes (depending on skills and aspirations).

Nice-to-haves

Experience in AI fields such as image analysis.
Experience with performance tuning and large-scale data processing.
Proactive adoption of new AWS services.
Experience with CI/CD environments.

Tech stack

C#.NET Core

About the Company

株式会社リバスタ

Posted7/28/2026

Updated2026-07-29 12:52:08