HARRYNGUYEN
I turn vision into motion
6+ years crafting gamification platforms, real-time interactive maps & enterprise systems that millions actually enjoy using. from island-wide treasure hunts to award-winning campaigns — i build the kind of web that makes people forget they're using software.
Sqkii
Jan 2021 — Present- —Responsible for the design, development & implementation of internal and public-facing websites, gamification platforms, CRM systems, dashboards, and interactive web applications
- —Lead frontend for #HuntTheMouse — Singapore's largest O2O cash hunt with ~1M+ users. Designed & built a scalable real-time gamification platform orchestrating game logic, user management, interactive maps & dynamic content across multiple brands and campaigns
- —Built web games & campaign platforms for DBS PayLah!, Kris+, Science Centre Singapore — including #HuntYourZodiac, UNTAME, Smiley Town, #CouponMania, UltimateHawker, Magnum Pleasure Auction, and more
- —Collaborated with teams and business users to understand requirements, write specs, estimate releases & implement ongoing revisions
- —Maintained and optimized existing codebases, ensuring performance, scalability, and security best practices across all projects
- —Researched and implemented new frontend technologies and tools to enhance development efficiency
GCE
Apr 2019 — Dec 2020- —Developed high-volume sports products handling thousands of concurrent users with real-time data updates using VueJS/NuxtJS
- —Built data visualization dashboards & analytics interfaces using ChartJS, established reusable component systems across projects
- —Implemented responsive, accessible UI components and optimized performance for complex data-heavy interfaces
- —Maintained/refactored legacy codebases, collaborated with teams to integrate and troubleshoot issues in production
Freelance
- —Delivered frontend solutions for startups & agencies — landing pages, dashboards & interactive web apps with modern tools and best practices
- —Collaborated with clients to understand requirements, provide technical guidance, and deliver high-quality products on time
- —Developed KK ERP for Keystone Corp — next-gen ERP system managing gas stations, LPG stations & wholesale subsidiaries with real-time data, dynamic pricing & advanced analytics
- —Developed Lotte Delivery for Lotte Mart Vietnam — end-to-end delivery management orchestrating order flow, pick-pack, inventory, shipment & returns across multi-platform stores
HUTECH University
2015 — 2019Things I've built
KK ERP
+Next-gen ERP system for Keystone Corporation with business sites — gas stations, LPG stations & wholesale subsidiaries. Real-time data accuracy, dynamic pricing & advanced analytics powering operational efficiency at scale.
Lotte Delivery
+End-to-end delivery management system for Lotte Mart Vietnam — orchestrating order flow across platforms & stores. Pick, pack, inventory, shipment, returns & order splitting optimized for fast, cost-effective last-mile delivery.
HeyNana
+Pet care platform connecting 150K+ pet owners with professional sitters — real-time care diary, GPS walking tracker, pet-friendly location maps & community. Website & dashboard system powering sitter onboarding, booking management, service analytics & content operations across Korea.
#HuntTheMouse
+Singapore's largest O2O cash hunt — real-time interactive maps powering island-wide treasure hunts across multiple editions. Multi-brand gamification platform partnered with Revolut, DBS, pandamart, ShopBack & Singapore Airlines. Perpetual hunt model with evolving mechanics, GPS-driven exploration & social virality.
#HuntTheMouse System
+Internal tools platform powering #HuntTheMouse operations
#HuntYourZodiac
+Award-winning Lunar New Year O2O game for POSB/DBS — location-based zodiac animal hunt across island-wide Gates of Fortune. Clan-based Zodiac Quest with real-time leaderboards, PayLah! transaction-powered power-ups & evolving seasonal mechanics. Won "Best Digital Integration" & "Best Use of Gamification" awards.
UNTAME
+Annual STEM gamification festival — blended digital + physical treasure hunts with themed mini-games, video quizzes & real-world missions inside Science Centre. Evolving biomes, staggered prize mechanics & O2O engagement driving sustained play across months-long campaigns.
Smiley Town
+Financial literacy gamification platform for POSB — kids explore four interactive worlds learning money values through sprite-based mini-games & storytelling. Built for ages 4-12 with engaging animations, progress tracking & reward mechanics.
#CouponMania
+Gamified coupon-merging experience for Kris+ lifestyle app — 2048-style merge mechanics where players combine coupon pieces to unlock deals & privileges from Singapore Airlines partners. Auto-collecting idle system, referral-driven slot expansion & tiered gift box rewards.
Pleasure Auction
+First-of-its-kind 24/7 live auction mobile game launching Magnum Double Gold Caramel Billionaire — players earned Gold Coins through missions, social challenges, referrals & ice cream purchases to bid real-time on limited-edition prizes. Drove Magnum to #1 ice cream in Singapore.
#UltimateHawker
+O2O mobile game celebrating Singapore hawker culture — players explored real hawker centres to discover virtual stalls, cooked iconic dishes via timing mini-games & fed hungry monsters to earn cash prizes. PayLah! scan-to-pay unlocked power-ups.