Core Product Domain - Senior Engineer Open PositionEnglish summary from Japanese

フリー株式会社

✓ Detailed

Salary

800-1200万円

Location

＜東京拠点＞〒141-0032　東京都品川区大崎1-2-2アートヴィレッジ大崎セントラルタワー 21階 ※会社の事業状況やオフィスの移転等により勤務場所が変更となる可能性があります

Job Type

Full-time

Work Style

・勤務形態：専門型裁量労働制・就業時間：10:00～19:00（休憩1時間）・平均残業時間：10時間～30時間程度（2023年5月時点）

Apply on LEVTECH

Role summaryEnglish summary from Japanese

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

Join freee as a Senior Engineer to develop and operate cloud services like freee Kaikei and freee Jinji-Rōmu, which streamline accounting and HR tasks. You will work in a core product domain experiencing significant growth and structural transformation, focusing on evolving the platform and enhancing development infrastructure.

Must-haves

Experience in core product domains (accounting, tax filing, HR/payroll)
Experience in re-architecting monolithic products
Experience in developing AI agents or API integrations
Experience in developing products for professionals (e.g., tax accountants)
Experience in handling complex legal and regulatory domains
Experience in developing for large-scale user bases (millions of employees, hundreds of thousands of businesses)

Nice-to-haves

Experience in BPO (Business Process Outsourcing)
Experience with AI-driven business process reform
Experience in developing AI-friendly public APIs
Experience in developing business-executing AI agents
Experience with AI agents like Claude Code

About the Company

フリー株式会社

Posted6/28/2026

Updated2026-07-22 14:24:42

Sourcelevtech

Core Product Domain - Senior Engineer Open PositionEnglish summary from Japanese

Role summaryEnglish summary from Japanese

Must-haves

Nice-to-haves

About the Company

Work style