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Browse thousands of tech jobs at Japanese startups and companies. Translated for foreign engineers.

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Jobs→株式会社Kaizen Platform→Full-Stack Engineer (Member) (Full-time)

Full-Stack Engineer (Member) (Full-time)English summary from Japanese

株式会社Kaizen Platform

✓ Detailed
Salary
500万〜800万円 ※45時間相当のみなし時間外手当含む ※四半期ごとのインセンティブ制度あり(目標達成時、年額の1/4を支給) ※半期ごとの人事評価による給与改定
Location
〒108-0072 東京都港区白金1-27-6 白金高輪ステーションビル10F リモートワーク:可(出社奨励日以外) 出社奨励日:有(週2~3程度/月・水・金) ※全社・部署イベント時(キックオフ・month end・ベストプラクティス等)は出社 ※業務状況にもよりますので、詳しくは面接等で確認ください。
Job Type
Full-time
Work Style
フレックスタイム制 コアタイム:10:00~15:00(休憩1時間) フレキシブルタイム:始業8:00~10:00 終業15:00~22:00
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Role summaryEnglish summary from Japanese

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

Kaizen Platform is seeking a Full-Stack Engineer to develop AI-powered UX applications and platforms. You will work across front-end, back-end, and data infrastructure areas, contributing to the company's mission of transforming user experiences with AI.

Must-haves

  • 3+ years of practical back-end development experience
  • 5+ years of total practical experience in front-end and/or back-end development
  • Experience in performance tuning and improvement
  • Experience in technology selection and code reviews

Nice-to-haves

  • PM or Tech Lead experience
  • Proactive attitude to "get things done"
  • Flexibility to communicate directly with project members
  • Ability to understand upstream processes and engage in high-level communication

Tech stack

TypeScriptJavaScriptReactjQueryRuby on Rails

About the Company

株式会社Kaizen Platform

Headquarters
東京都港区白金1-27-6 白金高輪ステーションビル10階
Founded
2017-04
Visit Website
Posted5/19/2026
Sourceherp
AWS
GCP
BigQuery
GitHub
CircleCI
Docker
Slack
Asana
Notion

Work style

Hybrid: Approx. 2-3 days/week in Tokyo office (Shirokane Takanawa Station). Remote work possible on other days. Flextime system with core hours 10:00-15:00.

Other notes

Salary: 5,000,000 - 8,000,000 JPY annually. Includes fixed overtime allowance for 45 hours. Quarterly incentive system and semi-annual performance reviews. Probationary period: 3 months.