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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primeNumber→Staff Engineer (TROCCO / COMETA)

Staff Engineer (TROCCO / COMETA)English summary from Japanese

株式会社primeNumber

✓ Detailed
Salary
[年収] ¥10,000,000~¥15,000,000 [月給] ¥833,333~¥1,250,000/基本給¥616,500~¥925,000、固定残業手当(45時間分)¥216,833~¥325,000を含む
Location
(雇入れ直後) 〒141-0021 東京都品川区上大崎三丁目1番1号 JR東急目黒ビル5F 屋内原則禁煙 ※喫煙可能区域での業務なし 労働者の自宅などテレワークを行う場所を含む (変更の範囲) 会社の定める場所※テレワークを行う場所を含む (従事すべき業務の変更範囲) 会社の定める業務
Job Type
Full-time
Work Style
フレックス制度あり。コアタイム11:00~16:00(休憩60分) リモートワーク可(水曜・木曜) 地方在住の場合、フルリモート制度有。詳細は面談等でご確認ください。 完全週休2日制(土日) 祝日、有給休暇(入社年度は15日付与)、慶弔休暇、年末年始休暇(12/29~1/4) 年間休日120日以上
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Role summaryEnglish summary from Japanese

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

As a Staff Engineer reporting directly to the VPoE, you will optimize existing product architectures and lead technical strategy from a business perspective. This role is crucial for driving business growth through technology, focusing on re-architecture, technical debt resolution, and creating next-generation development infrastructure.

Must-haves

  • Extensive experience in requirements definition, architecture design, development, and operation of medium to large-scale web services.
  • Experience leading the discovery and resolution of technical challenges spanning multiple teams or products.
  • Ability to understand business requirements and translate them into technical strategies and roadmaps.
  • Hands-on ability to troubleshoot and prototype complex technical challenges.

Nice-to-haves

  • Experience as CTO/VPoE/VPoT or Tech Lead in a startup.
  • Experience designing common infrastructure and microservices for multi-product environments.
  • Experience in large-scale data processing and performance tuning.
  • Experience operating commercial environments using Kubernetes (EKS, etc.).

Tech stack

Ruby (Rails)Typescript (React)Java (Embulk)AWS (EKS, ECS Fargate)KustomizeTerraformCircleCIGitHub ActionsClaude CodeGithub CopilotGemini

Work style

Hybrid work available (Wednesdays and Thursdays remote). Full remote available for residents outside major metropolitan areas. Core time 11:00-16:00. Location: Tokyo.

Other notes

Annual Salary: ¥10,000,000 - ¥15,000,000. Includes fixed overtime allowance (45 hours).

About the Company

株式会社primeNumber

Categories
Cloud / InfrastructureData / AnalyticsProduct Company
Headquarters
東京都品川区上大崎3丁目1番1号 JR東急目黒ビル5F
Founded
2015-11
Visit Website
Posted4/1/2026
Sourceherp