Hello · 안녕하세요 · Bonjour
Achu Muamaah
I build |
Full-stack software engineer in Cheongju, South Korea, with a decade of production software behind me: community platforms, self-service kiosks that take real payments, large-scale web automation, and blockchain infrastructure. I came from Cameroon to Korea in 2012, and I build things end to end and keep them running.
About me
I grew up in Cameroon taking apart computers, and in 2012 I moved to South Korea on a full scholarship to study Computer System Engineering. I have been here ever since, building software, raising a family of products, and becoming fluent in Korean along the way.
Since 2016 I have been a software engineer at BONSYS Co., Ltd. in Cheongju, where I design and ship the systems you walk past every day in Korea: touchscreen kiosks in district offices, digital signage fleets in elevators and lobbies, attendance terminals, and ticketing kiosks that take real card payments. My code runs unattended, 24/7, in government buildings. It has to work.
Outside the day job I run MatanVerse, my own product studio. Its flagship is waegook.com, a community marketplace for foreigners in Korea, alongside a rewards platform, an e-commerce analytics service, and Beehive, a blockchain validator operation. I built the tech behind CAMASKO, the Cameroonian Association in South Korea, and I am a founding member of KAFXA, the Korea-Africa Excellence Awards, where I also built and run the platform. Along the way I taught English to 100+ students.
"I don't just write code. I own it: backend, frontend, mobile app, the server it runs on, the update pipeline that keeps it fresh, and the alarm bot that wakes me when it breaks."
What I'm best at
- End-to-end ownership: client, API, DB, deploy, monitoring
- Hardware meets web: kiosks, card terminals, printers, sensors
- Production web platforms with real users and real money
- Resilient large-scale web automation and data pipelines
Languages
- EnglishNative
- KoreanFluent
- FrenchBasic
Quick facts
- Based in Cheongju, South Korea since 2012
- M.Eng from Chungbuk National University
- Software Engineer at BONSYS
- Founder of MatanVerse
- Chess and football when I'm offline
Experience timeline
Software Engineer · BONSYS Co., Ltd.
Cheongju, South Korea
I design, build and field-maintain self-service systems for Korean government and enterprise clients: DID signage fleets for the Sangdang-gu and Seowon-gu district offices (including elevator and video-wall displays), city-council touchscreen kiosks on Oracle, RFID attendance terminals, membership sign-up kiosks, and the KidSafety admission-ticketing kiosk with integrated KSNET card payment, cash receipts and thermal ticket printing. I also built the auto-update and watchdog pipelines that keep the whole fleet alive unattended.
Founder & Engineer · MatanVerse
Product studio, Korea
I solo-built and operate a family of live products: waegook.com (community marketplace and life platform for foreigners in Korea, 9-language i18n, PWA), sosohan.kr (mission and reward platform with a payout pipeline), cheatcode.kr (Naver Shopping market-intelligence SaaS fed by my own crawler engines), and Beehive, a Cosmos-ecosystem validator operation with a non-custodial wallet app and 24/7 monitoring bots. Runs on AWS Lightsail and Cloudflare plus a Windows/Apache origin I administer myself.
English Tutor & Community Builder
Cheongju, licensed tutoring business
I taught English to 100+ students, from kids to working professionals and academy teachers. I built and run the digital infrastructure of CAMASKO (the Cameroonian Association in South Korea, live at camasko.org), and I am a founding member of KAFXA, the Korea-Africa Excellence Awards, where I serve on the core team and built the platform at kafxa.org. Four seasons as assistant teacher at the Jungwon University English Camp.
Featured projects
A selection from 60+ shipped projects. Click any card for the full story.
Skills & stack
Languages
Frameworks & Frontend
Databases
Hardware & Payments
Cloud & Ops
APIs & Integrations
Education & research
M.Eng. Electronics & Information Engineering
Chungbuk National University · Cheongju, Korea
Thesis: "Slope Alarm Monitoring System Based on Real-Time Data Analysis for Disaster Safety". An IoT sensor network that detects landslide risk on slopes, with real-time analysis, KakaoTalk alerting and a field deployment. Presented at the 2023 Korean Joint Academic Conference.
B.Eng. Computer System Engineering
Jungwon University · Goesan, Korea
Full 4-year scholarship. Work-study student, English camp assistant teacher, and finalist (top 15) in the 18th World Korean Speaking Contest for Foreigners.
Let's build something
Whether you need a production web platform, a kiosk that takes payments, an automation pipeline, or someone who can own a system end to end, I'm one message away. English, 한국어, ou français.