Rei Nuttanon
Senior Full-Stack Engineer. AI integration and agent governance.
reinuttanon@gmail.comreinatt.comlinkedin.com/in/reinuttanonBangkok, Thailand (UTC+7)
Open to relocation (on-site), hybrid, and remote work.
Summary
Built software professionally since 2011, across the full stack. Now building production software with AI agents, and designing the AI-governance architecture around them. Nearly 9 years in online payments and e-commerce. I translate my years of experience into AI agents and build the AI workflow that can ship things to production.
Lately, I’ve been diving into AI solutions that solve business challenges. Work that creates a big impact and changes lives is rewarding.
Experience
Career track
Independent Software and Business Consultant
Jan 2025 - Present- Work with business owners to remove manual operations with tech/AI solutions. Initiate ideas, redesign operations, develop, integrate tech solutions, and get the team on board.
Online marketing operations platform
Jan 2025 - Present- Designed and built the platform for agencies and media buyers: a back office and tools for its operators, a customer app that runs inside LINE (LIFF) and on the web, and the API behind them.
- Built the wallet and billing core: a prepaid wallet on a replayable ledger, with bank-transfer top-ups, usage charges, reversals and a reconciliation import.
- Built the affiliate program: referral commissions earned on paid top-ups, settled monthly, then paid out or converted to credit.
- Built internal tools to automate daily data reconciliation and operations. We saved hours by reducing manual tasks.
- Laravel 11-13, PHP 8.2-8.4, PostgreSQL, Nuxt 4, Vue 3, TypeScript, Pinia, Tailwind, Docker, Cloudflare Workers, DigitalOcean.
Factory computer vision
Mar - Aug 2025- Built an on-device computer-vision app on a Raspberry Pi that reads a machine’s display, checks each reading automatically and reports to the on-site operator.
- Trained a small YOLO model to find each reading on the factory’s existing machine screen, then read it with EasyOCR.
- Raspberry Pi 5, Python, PyTorch, OpenCV, YOLO, EasyOCR.
Full Stack Developer, Hivelocity
Jul 2021 - Mar 2024- Built and maintained two product lines for a Japanese entertainment-tech company.
- Developed and extended the EC-CUBE platform behind music artists’ fan-club stores: merchandise, memberships and gacha.
- Built the sites for IP-licensed pop-up cafés (Hello Kitty and similar) on WordPress and WooCommerce.
- Built the sales reporting and the data imports the business ran on.
Full Stack Engineer (Contract), SamePage Inc.
Nov 2020 - Jun 2021- Customized and built e-commerce websites on EC-CUBE for the company’s clients, as an embedded member of a Japanese-speaking team.
Developer, Omise
Apr 2015 - Aug 2020- Built and maintained the public payment plugins and libraries for WooCommerce, Magento, OpenCart, PrestaShop, EC-CUBE and PHP.
- Supported merchants directly on integration issues.
Earlier roles
Dec 2011 - Mar 2015- Web developer and PHP programmer at VBT Communications, Diversition, Cubic Creative and OneCallAsia. Built a provident fund module for Siam Commercial Bank.
Founder track
Founder & Managing Director, YATTA! Idol Management
May 2021 - Dec 2024- Founded an entertainment company and produced END OF IDOL, a seven-member Vietnamese idol group. Composed its three songs, about resilience, self-worth and self-determination, and built the group’s identity around them.
- Carried a standing team of eleven at full size: seven members, three teachers and one assistant, plus choreographers, lyricists, makeup and media crews per event.
- Did the work of every department I couldn’t afford to hire: designed the shows, cut the video, shot the photos, ran the social accounts and negotiated the brand deals.
Founder, Morei: matching actors and models with agencies
2024- Designed and built a platform that matches actors to casting work.
- Reached out to hundreds of actors and to entertainment job agencies, pitched and sold the platform, onboarded both sides, matched talent to jobs, and handled the work between agencies and talent.
- Pitched Morei at FORTEC 2024, La French Tech Vietnam’s technology forum in Ho Chi Minh City.
Personal & AI project track
Lucy, personal AI operating system
Jul 2026 - Present- Designed the workflow, policies, architecture and tools that run a team of AI agents, built on Claude Code.
- I run my day-to-day production work and life management on it.
Open source (2015-2020)
omise-woocommerce: #1 all-time contributor. 2,000+ active installs.
omise-magento: #2 all-time contributor.
omise-opencart: #1 all-time contributor.
omise-php: #2 all-time contributor.
Contributed as github.com/guzzilar, my earlier GitHub account.
Skills
AI: Claude Code, Codex, agentic workflow, multi-agent orchestration & governance policies, computer vision
Languages: PHP, TypeScript, JavaScript, Python, SQL
Back end: Laravel, REST APIs, queues and background jobs, Node.js
Front end: Nuxt, Vue, Next.js, React, Pinia, Tailwind
Payments and commerce: payment gateway integration, prepaid wallets and ledgers, WooCommerce, Magento, OpenCart, PrestaShop, EC-CUBE, WordPress
Data and platforms: PostgreSQL, MySQL, LINE LIFF, Docker, Cloudflare Workers, AWS, DigitalOcean, Git, Raspberry Pi
Industries: payments, e-commerce, online marketing, entertainment
Also coded in: Ruby (Rails), Go (Gin), Swift (iOS)
Languages
English (fluent) / Thai (native) / Vietnamese (conversational) / Japanese (conversational)