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Natsumi Kosaka ntsmk

Just somebody who likes solving problems with technology :)

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Featured Projects

  • Voicemail Urgency Detector - Fine-tuned ML model with real 300+ voicemail data + ConnectWise API + Twilio integration
  • FAQ Chatbot - RAG(Vertex AI + Supabase vector DB with internal 15 Wiki pages) + deployed on GCP Cloud Run & K3s
  • Office Security System - Raspberry Pi + sensors + camera + real-time WhatsApp alerts

Skills

  • Backend: Python, Flask, PostgreSQL, Supabase
  • AI/ML: Google Vertex AI (RAG, fine-tuning)
  • Infrastructure: Docker, Kubernetes (K3s), GCP Cloud Run, Terraform
  • CI/CD: GitHub Actions, Pytest

Currently Learning

  • TypeScript
  • React/Next.js
  • Firebase

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  1. ML based system detects urgency levels in incoming voicemail transcriptions using Google Vertex AI. Also the system sends text when urgency is detected. The dataset used to train ML is existing 300…

    Python 2

  2. RAG based internal IT support chatbot that guides staff, especially new employees, through step-by-step troubleshooting to save time. Base dataset for RAG is internal wiki page (Nuclino).

    Python 1

  3. Rasberry pi based small office security system. The system is designed to detect potential unauthorized entry and notify staff in real time.

    Python

  4. Digital point card (loyalty program) pilot project using PWA × Firebase.

    TypeScript 1 1