Software engineer, AI researcher.

Publishing on computer graphics, medical imaging AI, and formal verification, and building the production systems those ideas run on. Based in Bangkok, Thailand.

Open to collaborations, research projects, and interesting problems.

Teejuta Sriwaranon (RuffLogix)
Aug 2025 - Present

Software Engineer Pro Max (Full-time)

Aug 2026 - Present

Worked across frontend, backend, mobile, and AI engineering to develop a customizable layout system and an adaptive LLM strategy-switching mechanism to reduce hallucination and context loss. Developed cross-platform mobile applications using Expo, and designed and implemented LLM training, fine-tuning, and deployment workflows, alongside additional features planned for future development.

Software Engineer Pro Max (Part-time)

Aug 2025 - Jul 2026

Worked across frontend, backend, mobile, and AI engineering to develop a customizable layout system and an adaptive LLM strategy-switching mechanism to reduce hallucination and context loss. Developed cross-platform mobile applications using Expo, and designed and implemented LLM training, fine-tuning, and deployment workflows, alongside additional features planned for future development.

Bangkok, Thailand
Sep 2025 - Present

Kasikorn Business-Technology Group (KBTG)

AI Engineer (Apprenticeship)

I researched the NEET (Not in Education, Employment, or Training) group in Thailand to understand their behaviors and needs, and explored how AI could be utilized to support them. I also developed a mobile application using Flutter and implemented a real-time ASR (Automatic Speech Recognition) and Machine Translation pipeline for medical discussions. This KBTG x EEF work was showcased at KBTG Techtopia 2026.

Bangkok, Thailand
Sep 2023 - Present

RuffBlitz

Founder, Tutor, Software Developer, AI Engineer, Writer

Founded RuffBlitz, a Thai coding-education brand that prepares high school students for TOI and the POSN Computer Olympiad. Tutoring competitive programming and algorithms, writing learning content, and building the software and AI tools behind it, including interactive algorithm visualizers.

Bangkok, Thailand
May 2026 - Jul 2026

Agoda

Full Stack Engineer (Internship)

Building a framework that bridges LLMs and Temporal.io through MCP, exposing predefined Temporal workflows as tools any LLM can invoke. Applied it to an internal Slack Bot for semi-automated employee onboarding, reducing the process from 21 steps down to 3–5.

Bangkok, Thailand
2026

Lumio 3D

Research Engineer (Part-time)

Researching Gaussian splatting for talking-head reconstruction, building 3D representations of a subject's head from multi-view image capture so it can be re-rendered and animated from novel viewpoints.

Bangkok, Thailand
May 2025 - Jul 2025

LINE MAN Wongnai

Back End Developer (Internship)

I developed a gRPC service in Go to retrieve data for feeding into DAGs and implemented the DAGs to automate report generation and email delivery to merchants. During this process, I also gained a strong understanding of encryption algorithms to ensure secure data handling throughout the pipeline.

Bangkok, Thailand
2025

IKP (iKnowPlus)

Software Developer (Part-time)

Working across the full stack on an internationalised product: a Next.js frontend with i18n covering multiple locales, and a Nest.js backend on MongoDB.

Bangkok, Thailand
Jan 2025 - May 2025

AIMET

Software Developer (Part-time)

I developed mobile and web platforms for the MDCU Wellness Center, supporting medical students at Chulalongkorn University, as well as mobile platforms for the CPIRD Wellness Center serving students in the CPIRD program. These applications were successfully deployed on both the App Store and Play Store, providing accessible wellness resources to medical students across programs.

Bangkok, Thailand
Jun 2024 - Dec 2024

Machine Learning Engineer (Part-time)

Aug 2024 - Dec 2024

I deployed AI services using the Gradio framework and Docker, ensuring scalable and user-friendly interfaces. I also scraped and preprocessed audio data and implemented audio enhancement modules to improve input quality for downstream tasks.

Machine Learning Engineer (Internship)

Jun 2024 - Aug 2024

I experimented with voice activity detection and speaker diarization models, integrating them into an automatic speech recognition (ASR) pipeline.

Bangkok, Thailand
Jan 2024 - Jun 2024

Kasikorn Business-Technology Group (KBTG)

Research Engineer (Apprenticeship)

I developed Federated Learning models for fraud detection tasks, enabling collaborative training across decentralized data sources. To ensure data confidentiality, I applied privacy-preserving techniques and policies to enhance the privacy of sensitive datasets throughout the learning process.

Bangkok, Thailand
Apr 2023 - Jun 2023

Kasikorn Business-Technology Group (KBTG)

Blockchain Developer (Internship)

I developed an E-learning platform using Next.js for the frontend and Express.js for the backend, featuring a course recommendation model that processes user input to suggest suitable courses. Additionally, I designed and implemented smart contracts for learning tokens and NFT-based course completion certificates, integrating blockchain technology into the educational experience.

Bangkok, Thailand

Previous Part-Time Roles

2023 - Present

Chulalongkorn University

Computer Engineering Faculty (CP)

Currently pursuing a Bachelor's degree in Computer Engineering. Developing expertise in software development, artificial intelligence, and algorithm design while maintaining strong academic performance.

Undergraduate researcher in the Computer Graphics Laboratory, advised by Assoc. Prof. Pizzanu Kanongchaiyos, working on learning-based visual computing.

Selected coursework
Systems & Architecture

Operating Systems · Distributed Systems · Computer Networks · Computer System Architecture · High Performance Architecture · Embedded Systems Lab · Hardware Synthesis Lab · Digital Computer Logic · Digital Logic Lab

AI, Data & Graphics

Pattern Recognition · Data Mining · Digital Imaging · Computer Graphics · Database Systems · Statistics for Physical Science

Theory & Mathematics

Algorithm Design · Data Structures · Discrete Structures · Formal Verification · Computer Engineering Mathematics I · Computer Engineering Mathematics II

Software Engineering

Software Engineering · Software Engineering Lab · Programming Methodology · Computer Programming · Computer Engineering Essentials · Game Programming · Design Thinking

Research & Independent Study

Individual Study I · Individual Study II · Advanced Topics in Computer Engineering VII

Bangkok, Thailand
2017 - 2023

Benjamarachutit School

Development and Promotion of Science and Technology Excellence (DPSTE)

Completed high school with a focus on science and technology development. Gained foundational knowledge in mathematics, physics, and computer science that sparked my interest in engineering.

Nakhon Si Thammarat, Thailand
  1. 2026 KBTG Techtopia 2026 Conference, KBTG Showcased Work
  2. 2022–2025 TUSCO Computer Olympiad Competition Host ×5
  3. 2025 Super AI Engineer Season 5 Program, AIAT Research Track
  4. 2025 Stupid Hackathon #9 Hackathon, Stupid Hackathon Thailand 1st Place
  5. 2025 Durian Hackathon 2025 Hackathon, Prince of Songkla University Top 5
  6. 2025 BDI Hackathon 2025: AI & Data Innovation for Smart Tourism Hackathon, Big Data Institute 3rd Place
  7. 2024 iGEM 2024 Competition, iGEM Foundation Silver Medal
  8. 2024 AIHack Thailand 2024 Hackathon, Chulalongkorn Business School 3rd Place, AUC Track
  9. 2024 Stupid Hackathon #8 Hackathon, Stupid Hackathon Thailand Participant
  10. 2024 TESA Top Gun Rally 2024 Competition, Thai Embedded Systems Association 5th Overall
  11. 2023 Super AI Engineer Season 3 Competition, AIAT Silver Medal
  12. 2023 Stupid Hackathon #7 Hackathon, Stupid Hackathon Thailand Participant
  13. 2022 Sriyapai School Computer Olympiad Competition, Sriyapai School Host
  14. 2022 5th Creative AI Camp by CP ALL Camp, CP ALL Participant
  15. 2022 Shopee Code League Competition, Shopee Participant
  16. 2021 17th Thailand Olympiad in Informatics Competition, POSN Silver Medal
  17. 2021 Our Marscraft Competition 1st Place
  18. 2021 TMLCC: Thailand Machine Learning for Chemistry Competition Competition Participant
  19. 2021 Peer-Tutoring Program for POSN Olympiad at Benjamarachutit School Program Head & Host
  20. 2020 16th Thailand Olympiad in Informatics Competition, POSN Bronze Medal
Programming Languages
Python, JavaScript/TypeScript, Go, Solidity, SQL, C/C++, Rust, Java
Web Technologies
React/Next.js, Astro, Express.js, TailwindCSS, GSAP, Nest.js, Gin, gRPC, Ntex, Elysia
Machine Learning & AI
PyTorch, TensorFlow, Scikit-learn, Hugging Face, OpenCV, Monai, Flower (FL)
Cloud & DevOps
Docker, AWS, Apache Airflow, Google GCP, Git/GitHub, CI/CD
Mobile Development
React Native, Flutter, Expo
Databases & Tools
PostgreSQL, MongoDB, Redis, Gradio, Tauri