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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kubell→Full-stack Engineer (BPaaS Business) <Flex / Hybrid work>

Full-stack Engineer (BPaaS Business) <Flex / Hybrid work>English summary from Japanese

株式会社kubell

✓ Detailed
Salary
応相談
Location
〒105-0001 東京都港区虎ノ門一丁目10番5号 KDX虎ノ門一丁目ビル WeWork KDX 虎ノ門1丁目 プロダクト職種は週1〜月1出社となります。 ※配属先の本部のルールによって異なります。
Job Type
Full-time
Work Style
契約期間:期間の定めなし(試用期間3ヶ月) 勤務時間:フレックスタイム制(メインタイム※ 10:00-16:00) ※業務遂行の推奨時間帯
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Role summaryEnglish summary from Japanese

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

Kubell is seeking a Full-stack Engineer to join their rapidly growing BPaaS (Business Process as a Service) division. This role involves developing new features, optimizing existing systems, and strengthening observability from an SRE perspective, contributing to both the stability and expansion of the product.

Must-haves

  • Ability to integrate AI into editors/IDEs for code completion and generation, understanding prompt improvement.
  • Experience in designing, developing, and operating web applications (commercial or business systems).
  • Implementation experience from web front-end to back-end.
  • Experience in API and DB design, with knowledge of upstream processes like data models.
  • Operational experience for system stability, including system monitoring, troubleshooting, and incident response (SRE mindset).

Nice-to-haves

  • Front-end and back-end development and operation experience using TypeScript.
  • Infrastructure design, construction, and operation experience (especially cloud environments like AWS).
  • Practical SRE experience or experience in introducing/improving monitoring tools.
  • Experience involved in specification development for B2B products, including business support SaaS.
  • Experience driving the re-architecture or refactoring of complex existing systems.

Tech stack

TypeScriptNext.jsNestJSTailwind CSSStorybookVitestPlaywrightZodAmazon Web ServicesAmplifyECSAuroraTreasure DataSnowflakeGitHubJIRAConfluenceMiroChatwork

Work style

Hybrid work, with 1 day to 1 month of office attendance per week depending on the department's rules. Location: Tokyo. Flextime system with core hours from 10:00 to 16:00.

Other notes

Salary: Negotiable. Employment type: Full-time. No fixed term contract (3-month probation period). Non-smoking on premises.

About the Company

株式会社kubell

Headquarters
〒105-0001 東京都港区虎ノ門一丁目10番5号 KDX虎ノ門一丁目ビル WeWork KDX 虎ノ門1丁目
Founded
2004-11
Visit Website
Posted7/28/2026
Updated2026/07/26 22:27
Sourceherp