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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STYZ→[Mid-career / AI Division] AI Engineer

[Mid-career / AI Division] AI EngineerEnglish summary from Japanese

株式会社STYZ

✓ Detailed
Salary
応相談
Location
勤務地 東京都渋谷区千駄ヶ谷3-59-4 リモート勤務可否:ハイブリッド勤務可(週2以上の出社が望ましい)
Job Type
Full-time
Work Style
標準労働時間:8h/日 コアタイム:11:00-16:00 時間外労働:見込み残業45時間/月
Apply on HERP

Role summaryEnglish summary from Japanese

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

STYZ is seeking an AI Engineer to join their newly established AI Division. This role involves developing AI solutions and products using cutting-edge AI agents like Codex, Claude Code, and Devin to address social issues and client challenges. You will be instrumental in shaping the future of AI development speed and quality.

Must-haves

  • 3+ years of web application development experience with TypeScript/Python.
  • Experience developing applications/agents using LLMs.
  • Experience with cloud environments (GCP/AWS/Azure) for development and operation.
  • Team development experience using GitHub (PR reviews, CI/CD).
  • Experience with AI development support tools (Codex, Claude Code, Devin) or strong interest in them.

Nice-to-haves

  • Experience with Vercel AI SDK, OpenAI AgentKit, LangChain, OpenAI API, Vertex AI.
  • Experience in RAG construction and vector database utilization.
  • Experience in MLOps and data pipeline construction.
  • Experience developing new business/PoC stage products.
  • Interest in social issues, UX design, and human computing.

About the Company

株式会社STYZ

Headquarters
〒151-0051 東京都渋谷区千駄ヶ谷3-59-4 クエストコート原宿102
Founded
2016-03
Visit Website
Posted11/26/2025
Sourceherp

Tech stack

TypeScriptPythonNext.jsVercel AI SDKOpenAI AgentKitLangChainFastAPICodexClaude CodeDevinGCPOpenAI APICloud RunFirestoreGitHubNotionSlack

Work style

Hybrid work is possible, with attendance of 2 or more days per week desirable. Location: 3-59-4 Sendagaya, Shibuya-ku, Tokyo.

Other notes

Salary is negotiable. Standard working hours: 8 hours/day with 11:00-16:00 core time. Estimated overtime: 45 hours/month.