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Thirawat
Phongsathatkit

Data Scientist with 2+ years in banking — building fraud models that protect millions, and translating complex data into decisions executives can act on.

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Technical Toolkit

Skills & Expertise

Core tools and specializations I use day-to-day.

🐍
Core Stack
Python SQL / Hive Shell Linux
🔍
Fraud & Analytics
Fraud Analytics Anomaly Detection Time-series Scikit-learn
🤖
AI / NLP
RAG OpenAI Qdrant PyThaiNLP Sentiment
📊
Stakeholder & Insights
Executive Reporting Forecasting Power Automate Visualization

Work History

Experience

Building real impact in banking and beyond.

Data Scientist
Jul 2023 – Present
T.N. Digital Solutions Co., Ltd. · Bangkok
  • Fraud Protection: Built models for a tier-1 Thai bank's mobile apps, safeguarding 10M+ customers and preventing ~THB 30M in losses.
  • Executive Reporting: Designed clear, actionable reports for monthly board presentations with non-technical stakeholders.
  • Forecasting: Delivered loan volume forecasts for a THB 1B campaign and sentiment analysis across 100+ branches.
  • Anomaly Monitoring: Dynamic threshold approach via time-series decomposition, replacing static thresholds and reducing false alarms.
  • RAG PoC: Prototyped a retrieval-augmented system with Qdrant (vector DB) and OpenAI embeddings.
  • Workflow Automation: Converted paper-based processes to digital via Power Automate, enabling downstream data availability.
AI Engineer Intern
Jun – Jul 2022
Chanwanich Company Limited
  • Developed PyThaiAddr — an open-source Python library for Thai address parsing (tokenization, spelling correction) using Norvig, SymSpell, and edit-distance; published on PyPI with docs and notebooks.
AI Engineer Apprentice
Jan – Aug 2022
Super AI Engineer Season 2
  • Selected as 1 of 200 from 5,000+ applicants. Contributed to data preprocessing, model development, and project pitching for real-world problems.

Selected Work

Projects

A mix of civic tech, open source, and medical AI.

🏛️
Winner — Open Parliament Hackathon 2024
Du Ngop (ดู งบ)

A civic tech platform opening Thailand's national budget to public scrutiny — citizens can collaboratively review and upvote suspicious budget items.

Civic Tech Open Data Hackathon
📦
PyThaiAddr

Open-source Python library for Thai address processing: spelling correction and tokenization using Norvig, SymSpell, and edit-distance algorithms. Published on PyPI.

NLP PyPI Open Source PyThaiNLP
🧠
Stroke Segmentation AI

Trained FCN-8s, SegNet, and U-Net on 1,576 manually annotated CT scans (radiologist-verified) for hemorrhagic stroke segmentation. Delivered a clinical decision-support tool.

Deep Learning U-Net Medical AI IoU 82.29%

Academic Background

Education

B.Sc. Computer Science
King Mongkut's Institute of Technology Ladkrabang (KMITL)
Aug 2019 – Jun 2023 GPA 3.28 / 4.00 Second Class Honors
Thesis / Academic Project
Hemorrhagic Stroke Segmentation on Brain CT

Built and evaluated CNNs (FCN-8s, SegNet, U-Net) on a manually annotated dataset of 1,576 CT scans, with annotations verified by a radiologist. Delivered a proof-of-concept tool to assist clinical interpretation.

85.74% Dice Score
82.29% IoU Score
1,576 CT Scans

Let's Connect

Get in Touch

Whether it's a new opportunity, a collaboration, or just a chat about data — feel free to reach out.

thirawatp9@gmail.com LinkedIn GitHub Medium