Work Experiences

Senior Full Stack Engineer

02/2025 – present

Differs, Paris, France (Bangkok-based)

• Leading the development and design overhaul of the Differs web application
• Collaborating with the design team to ensure an accessible and visually clean user interface
• Designing and implementing robust API endpoints

Head of Engineering / Product Delivery

01/2024 – 01/2025

IDX, Bangkok, Thailand

• Led the end-to-end development lifecycle of all software products under the “Connex” brand
• Developed and maintained the front-end website
• Planned, architected, and monitored cloud infrastructure

Head of Engineering

04/2023 – 01/2024

Idea Vivat, Prachuap Khiri Khan, Thailand

• Conducted technical requirement gathering with clients during pre-sale and post-sale phases
• Led front-end development for most projects using Nuxt 3
• Planned and maintained cloud infrastructure (Firebase, DigitalOcean)
• Mentored and recruited engineers and designers
• Maintained internal tools (e.g., Plane.so, Outline), cloud infrastructure (Docker-based), and Google Workspace
• Planned product development cycles and timelines

Web Engineer + Solution Developer

04/2021 – 06/2021 (Part-time), 10/2019 – 03/2021 (Full-time)

Idea Vivat, Prachuap Khiri Khan, Thailand

• Developed front-end solutions primarily using Vue 2 + Composition API, later transitioning to Vue 3 and Nuxt 3
• Participated in software architecture planning during requirement analysis
• Gathered and analyzed client requirements to propose tailored solutions
• Coordinated with designers and managers to ensure timely and quality product delivery

Freelance Web Solution Developer

Since 2016

Trusted by various agencies and companies, I take on freelance projects in my spare time. My work primarily focuses on front-end web development and technical project planning and requirement gathering.

Notable Projects

• Single-page web apps: Provided consultation and module development for large-scale systems
• Landing pages: Delivered high-quality front-end development
• Interactive microsites: Built engaging projects including a short dress-up game and a commemorative quiz
• Digital signage web app: Developed an interactive Valentine’s Day display for signage in the Siam area, Bangkok
• Livestream overlay: Created a web-based overlay for the Bangkok Election 2022 live event
• Academic conference website: Built TSME-ICoME 2022 ↗
• V-Tuber agency website: Developed the main website for a virtual talent agency

Side Projects

Personal Cloud & IoTs

2023

In my free time, I work on my cloud for self-hosting applications and the integration of various IoT devices. I have several servers on the cloud and a Raspberry Pi running as a home server, both are just for fun. On the cloud, I setup the majority of applications using Docker, apply security with VPN and firewall.

Image: an e-ink ambient display that runs on M5Stack’s M5Paper. Information is fetched and aggregated on the cloud then this device periodically refreshes itself. (github.com/pixelart7/m5paper-micropython-data-text-display)

Game Translation Modding

I helped my friend chaisiam at PlearnGaming ↗ to parse localization file in a game for him to translate into Thai. See the announcement YouTube video ↗ (in Thai.)

To. Link Shortener

2019

An educational link shortener service that I built in order to learn AMP framework.

• Live: to-url-shortener.netlify.app ↗
• Source: github.com/pixelart7/to-link-shortener-web ↗, /to-link-shortener-surge-sh ↗

Gimme Money

2019

Designed and built a simple application built on Vue with PWA for generating a PromptPay QR code with the desired amount of money.

• Live: gimme.netlify.app ↗
• Source: github.com/pixelart7/gimme-money ↗

Lyrics Base

2018

Designed and developed a web-based application on Vue with PWA for storing lyrics in two languages. The app is built with LocalStorage.js where all data are stored on the user’s Google Drive.

• Live: lyricsbase.pix7.me ↗
• Source: github.com/pixelart7/lyrics-base-2 ↗

Hon no Jisho

2018

Designed and developed a web-based application on Vue with PWA for storing book vocabulary in Japanese and English. Words are separated by section and chapters with an additional API calls to Japanese-English dictionary.

• Live: hon-no-jisho.firebaseapp.com ↗

Education

M.E. Electrical Engineering and Computer Science

04/2021 - 03/2023

Information, Graduate School of Electrical Engineering and Computer Science,
Shibaura Institute of Technology, Tokyo, Japan

Member of Physically Augmented Interaction Laboratory / MANABE Lab ↗. My area of study are human-computer interaction, reflective/slow technology, and perception of time.

Publications

• Chaiyapat Tantiworachot and Hiroyuki Manabe. 2022. Summer Skybox: A Device Representing the Sky for Personalized Day Cycle. In 13th Augmented Human International Conference (AH2022). Association for Computing Machinery, New York, NY, USA, Article 9, 1-4. https://doi.org/10.1145/3532525.3532532 ↗.

Notable Activities

• 04/2022 - 01/2023 — Work at Global Learning Commons (GLC), a place for international discussion, as a student leader staff. Develop a room check-in system using Google App Script.
• 2021 — Develop a laboratory tour reservation system using Google App Script.
• MEXT Scholarship (Monbukagakusho) recipient.

Graduation Thesis

“Application, Implementation and the Emerging Importance of Slow Technology in the Fast-paced World”

Advisor: Prof. Hiroyuki Manabe (Shibaura Institute of Technology)

I studied about Slow Technology which is a design concept that encourage the users moment of reflection. As part of my exploration, I created and tested two applications that incorporated this concept, and outlined the challenges that exist in this field.

B.Sc. Computer Science

07/2015 - 11/2019

Computer Science (English Program), School of Information Technology,
King Mongkut’s University of Technology Thonburi, Bangkok, Thailand

3.80/4.00 GPA (first class honors)

Notable Activities

• 02/2019 — One of the team leaders of a seminar named “Thailand Election 2019: The Future of Thai Science and Technology.”
• 09/2017 - 08/2018 — Study abroad in Shibaura Institute of Technology, Tokyo, Japan during the 3rd year of the degree. Enrolled in courses on Human-computer Interaction, Assistive User Experiences, and Problem-based Learning, etc.
• 12/2016, 03/2017 — Attend two global problem-based learning (gPBL). One at Shibaura Institute of Technology, Japan, and another one at King Mongkut’s University of Technology Thonburi, Thailand.
• 09/2016 - 12/2016 — Volunteer as one of IA Buddies, a group of students who assist international students in KMUTT.
• 03/2016 — Lead the developer team of 2B-KMUTT camp in developing an attendance checking system.

Graduation Thesis

“Indoor Location Detection Using Ambient Noise From Two Voice Receivers” (Research Project)

Advisors: Dr. Tuul Triyason (King Mongkut’s University of Technology Thonburi) and Prof. Hiroaki Morino (Shibaura Institute of Technology)

I investigated a method for determining the proximity of two devices that are equipped with microphones by analyzing ambient noise in their surroundings.