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Lead AI Engineer
The Lead AI Engineer will design and deploy production-grade computer vision and speech processing pipelines for Digital Green's multilingual agricultural advisory platform, FarmerChat. This role involves building optimized inference systems, defining evaluation frameworks, and mentoring junior engineers to support smallholder farmers globally.
Senior QA Engineer
The Senior QA Engineer will own end-to-end test automation for a customer operations AI platform, utilizing Playwright, mobile automation tools, and API testing. The role involves building robust automation frameworks and integrating them into CI/CD pipelines to ensure the reliability of AI-driven features.
フルスタックエンジニア／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Full-stack engineer in CLINKS's newly formed AI division, building brand-new AI products and MVPs from scratch — designing and developing new AI services, improving existing ones, and supporting AI governance (AIMS). Remote-first modern stack: TypeScript, Python, React/Next.js, FastAPI, PostgreSQL/Firestore, AWS/GCP, Docker, OpenAI API.
バックエンド(オープンポジション)／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Backend systems engineer at OPTiM, a TSE Prime-listed AI/IoT company, leading server-side design, API development, and DB optimization for its own products (incl. the No.1-share MDM 'OPTiM Biz') and AI-transformation products for construction, healthcare, and government. Work starts in Go, Java, Python, or Ruby on Rails, with hybrid office/remote work.
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.
データエンジニア／システムエンジニア（DB・ミドルウェア設計／汎用機系）
Data engineer/system engineer at CrowdChem, a startup bringing AI- and data-driven R&D to Japan's chemical and materials industry. You design and build DWHs, data marts, and data pipelines for enterprise client projects, covering rollout, operations, and monitoring, using Python, Java, Scala, and SQL.
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.
Web開発（オープンポジション）／システムエンジニア（アプリ設計／WEB・オープン・モバイル系）
Open-position web/system engineer at OPTIM, a TSE Prime-listed AI/IoT company developing its own AX products for healthcare, construction, government, and AI camera analysis. Engineers join backend, frontend, mobile, infra, or QA projects using Go, Python, TypeScript, Swift, and C++, working from Tokyo, Kobe, Iizuka, or Saga offices with remote work available.
Webアプリ開発（リーダー候補）／プロジェクトマネジャー・リーダー(WEB・オープン・モバイル系）
At a Tokyo-based, TSE Prime-listed AI/IoT company, you'd develop and maintain the core remote-control and screen-sharing features of its own products (Windows C/C++ first, expanding to Mac/iOS/Android) while leading and mentoring a 4-5 person team, coordinating priorities with planning/business units, and improving dev processes with AI coding tools.
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.
PM（プロジェクトマネージャー）／プロジェクトマネジャー・リーダー(WEB・オープン・モバイル系）
Project manager at a startup building AI/data-driven tools for the chemical and materials industry (materials informatics, IP research AI, generative AI assistants, and SaaS). You drive projects end to end — requirements definition, scheduling, resourcing, budgeting, quality and risk management — while liaising with enterprise chemical-maker clients, mostly remote with a few Tokyo office visits pe
Windowsエンジニア／プロジェクトマネジャー・リーダー(WEB・オープン・モバイル系）
Windows engineer / PM-leader at OPTiM (TSE Prime-listed) who develops and maintains Windows applications and agents in C++/C# with Win32API — design, implementation, verification, refactoring, and OS-level log analysis/troubleshooting — plus technical coordination across internal teams, using generative AI tools (Claude Code, Codex) to streamline docs and dev workflows.
Windowsエンジニア／システムエンジニア（パッケージソフト・ミドルウェア）
Windows engineer/system engineer at OPTIM, a TSE Prime-listed AI/IoT company: develop and maintain Windows applications and agents in C++/C# with Win32API, analyze OS behavior to troubleshoot issues, and coordinate technical requirements across departments. Hybrid work from Tokyo HQ (3+ office days, up to 2 remote days).
データサイエンティスト／アクセス解析・統計解析
Data scientist at CrowdChem, a startup transforming chemical/materials R&D with data-driven AI. Handles enterprise projects end-to-end: designing and developing generative-AI/deep-learning models for materials development, client-facing problem discovery, data analysis, and production implementation, using Python, PyTorch, LangChain, and Azure/GCP or on-prem environments.