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Tatsuxx

About

Tatsuxx is an indie builder working across machine learning, generative AI, character branding, and mobile app development to create experiences that help people become able to do more and systems that support business decisions.

Titles

  • Indie App Developer
  • Data Scientist
  • Securities Analyst
  • Certified Member Analyst of the Securities Analysts Association of Japan (CMA)
  • Applied Information Technology Engineer (AP)

Strengths

  • Python (5+ years)
  • Data analysis and AI/ML
  • LLMs, generative AI, and multimodal workflows
  • Planning, Flutter implementation, and launch iteration for App Store apps
  • Development with self-review, testing, and hands-on verification

Interests

  • Finance, investing, and securities analysis
  • AI and creative tech
  • Original character branding
  • Productivity and focus support

Dev style

Uses AI-assisted implementation with Codex and GitHub Copilot, then follows through with self-review, lint/build checks, tests, and Playwright UI verification before iterating after release.

Selected experience

From finance and data analysis to enterprise AI/ML and consumer apps/characters, Tatsuxx turns ideas into practical systems and experiences that help people move forward.

Finance and data analysis

  • Asset management and client service for institutional investors
  • Financial analysis, visualization, and optimization for listed companies and mid-sized private companies

Enterprise AI/ML

  • Built and operated machine learning models for corporate financial credit risk and acquisition pricing
  • Developed and operated customized generative AI tools for enterprise use
  • Designed and implemented multimodal research agents and hybrid-search RAG workflows

Consumer products

  • Created, operated, and branded original characters for consumer audiences
  • Developed and operated consumer-facing mobile apps

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