株式会社オプティム
Open positions
モバイルエンジニア／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Mobile engineer at TSE Prime-listed OPTiM in Tokyo, developing iOS (Swift/Objective-C) and Android (Kotlin/Java) apps for in-house products like OPTiM Taglet and AI Camera — covering planning, design, implementation, testing, upstream requirements work, and using generative AI (Claude) to boost development efficiency. Hybrid work: 3+ office days, up to 2 remote days.
Webアプリエンジニア（テックリード）／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Tech lead for web application development of OPTiM's own smart-agriculture service: owns architecture design and tech selection, drives requirements definition and new feature development, builds AI-assisted dev workflows (Claude Code, Codex), and improves performance using Go and React. Hybrid work (3 office days/2 remote) across Tokyo, Kobe, Iizuka, or Saga offices.
モバイルエンジニア／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Mobile engineer at OPTiM, a TSE Prime-listed AI/IoT company, developing its own mobile products: requirements definition and architecture design in the upper process, iOS (Swift/Objective-C) or Android (Kotlin/Java) app implementation and testing, plus refactoring and LLM/AI-assisted development efficiency. Hybrid work from the Tokyo (Minato) HQ with up to 2 remote days per week.