Skip to content

Resume / CV — CAMT DII, CMU · Sec 1

Thanatphong Tarin

Year-2 DII student at CAMT, Chiang Mai University (GPA 3.40; high-school Software Program 3.97) and Co-Founder & CTO of Muanjai. Building Thai RAG systems on Pathumma LLM + ThaiSC, LINE OA compliance bots with PromptPay verification, and full-stack web platforms — from OOP/Java foundations to production DevOps (240+ tests).

Thanatphong2719@gmail.com

Professional Experience

Working Experiments

Production

Muanjai (ม่วนใจ๋)

Role

Co-Founder & Chief Technology Officer (CTO)

Target / Audience

Hotels, homestays, and individuals who need to track licenses, certificates, and compliance deadlines.

Problem Solved

License and certificate expiry dates are scattered across paper documents and spreadsheets — easy to miss, with fines and compliance risks when forgotten.

Lessons Learned

"Building RAG-based document Q&A on local LLMs (Pathumma LLM on ThaiSC supercomputing infra), designing expiry reminder flows, building secure real-time PromptPay verification, hardening webhook reliability (retry dedup, reply-window deadlines, operator alerting), and enforcing security best practices (session secret fail-fast, CORS anchoring) — all guarded by a CI pipeline running 240+ tests."

Municipality Web Application - Phlu Ta Luang

Role

Back-end Developer (Member)

Target / Audience

Government staff and local citizens.

Problem Solved

Manual paperwork and decentralized data management.

Lessons Learned

"Real-world web application workflow and collaboration with municipal staff."

Competition

HYLIFE Hackathon 2025

Role

Developer & Presenter

Target / Audience

Farmers and food supply chain managers.

Problem Solved

Inefficiency in tracking produce quality and supply chain transparency.

Lessons Learned

"Rapid prototyping, pitch deck preparation, and working under pressure."

Academic

OOP Lab Project 2026

Role

Lead Developer

Target / Audience

CS Students / Faculty.

Problem Solved

Need for a practical implementation of OOP patterns.

Lessons Learned

"Advanced Java concepts, design patterns, and clean code principles."

DII Design - CAMT Open House 2025

Role

Presentation & UX Designer

Target / Audience

Prospective students.

Problem Solved

Complexity in understanding different tech roles for beginners.

Lessons Learned

"User-centric design and effective technical communication."

Personal

AIM4 Mod

Role

Creator

Target / Audience

Modding community.

Problem Solved

Lack of lightweight and updated content for the platform.

Lessons Learned

"Web layout fundamentals and community feedback integration."

Open Source

AutoOS

Role

Contributor

Target / Audience

Windows power users and gamers.

Problem Solved

Manual Windows reinstalls are slow and leave behind bloat.

Lessons Learned

"WinUI 3, Native AOT publishing, partition management, and upstream open-source collaboration."

ProjectPruta Contributions

Role

Contributor

Target / Audience

Open-source developers.

Problem Solved

Unresolved issues in the core template.

Lessons Learned

"Git workflow, code review processes, and contributing to community projects."

Self-Development

Self-Development

Certifications

  • UX/UI Foundation Program 2025T.C.C. Technology Co., Ltd.

Workshops & Seminars

  • Modern Web Infrastructure WorkshopTech Community
  • Agile Development SeminarCAMT

Awards & Achievements

Achievements

HYLIFE Hackathon 2025

3rd Place Winner

Smart Agriculture

Academic Excellence Award

Grade 12

Highest GPA in Software Program

Leadership & Volunteer

Soft Skills & Impact

April 12 - 26, 2023

School Representative - Japan Cultural Exchange

Student Representative

Selected as a school representative for the Language and Cultural Exchange Program at Shizuoka Seiko Academy in Shizuoka, Japan.

Soft Skills
Cross-Cultural CommunicationAdaptabilityInterpersonal Skills

Education

Chiang Rai Provincial Administrative Organization School

2019 - 2025

Software Engineer Program

GPA: 3.97

Chiang Mai University

2025 - Present

CAMT, Bachelor of Science in Digital Industry Integration

GPA: 3.40

Work

Muanjai (ม่วนใจ๋) - Co-Founder & Chief Technology Officer (CTO)

June 2025 - Present
  • Co-founded and engineered Muanjai, an AI-powered compliance helper bot that helps hotels, homestays, and individuals track licenses and document expiry via LINE OA and a Web Client.
  • Designed the core AI architecture, integrating NECTEC's Pathumma LLM leveraging ThaiSC's supercomputing infrastructure for RAG-based document Q&A in Thai.
  • Built expiry reminder flows, document upload and status summaries, plus secure real-time PromptPay payment verification.
  • Hardened the LINE webhook pipeline: retry idempotency ledger, reply-window deadline guards, and concurrency caps so every message gets a reply inside LINE's 30s token window.
  • Added operator alerting that pushes critical errors (e.g. webhook error-rate spikes) to an admin LINE account, rate-limited to avoid alert floods.
  • Established DevOps practices including cloud deployment, CI/CD automation, and rigorous security standards for proprietary code and data protection — CI enforces lint, type checks, and 240+ tests.

P'CAT HOUSE - Part-time Administrative Assistant

March 2022 - Present
  • Managed tenant records including personal information and utility tracking.
  • Recorded payment data in Excel and Google Sheets.
  • Organized administrative documents.
  • Designed notices using Canva.