Hanoi, Hanoi, Vietnam
30+ years in the global ICT industry across Microsoft Korea (15 years), Samsung Electronics, and Megazone Cloud Vietnam, where I served as Country Manager for 7+ years and led 10x revenue growth. Currently CTO of Rootcorp, a Vietnam-based AI startup shipping consumer AI products — GlucoFresh AI (multimodal diabetes management) and Sotong (Korean–Vietnamese translator with on-device + AI hybrid architecture). Areas of deep expertise: - Enterprise Cloud (AWS, Azure, GCP, MSP business model) - Generative AI: GPT-4o, RAG, multimodal AI, mobile AI shipping - Vietnam ICT market: 8 years on the ground, government and enterprise networks - Microsoft enterprise stack: Office, Exchange Server, SharePoint, SQL Server - Samsung ecosystem: KNOX, cloud services, B2B enterprise - Healthcare AI: Apple medical device classification Microsoft Circle of Excellence Award (2007). Steering Committee Member of KoCham Vietnam. Former Chairman of VBF Digital Economy Working Group. Available for advisory engagements, expert network calls, board roles, and consulting on Korea-Vietnam ICT, Cloud, and AI sectors.
- Founded Vietnam-based AI startup; built and launched GlucoFresh AI — a multimodal AI service predicting post-meal blood glucose response from food photos. - Architected GPT-4o + RAG pipeline with custom GI/GL database for personalized analysis. - Released cross-platform Flutter app across 4 countries (KR/US/JP/VN); navigated Apple medical device classification process. - Launched Sotong (Korean↔Vietnamese translator) with floating overlay UX over KakaoTalk/Zalo, on-device + AI 3-tier model architecture. - Tech stack: Flutter, Dart, OpenAI API, RAG, Firebase, GCP. Apps: - GlucoFresh AI (iOS): https://apps.apple.com/app/glucofresh-ai-food-scanner/id6745016522 - GlucoFresh AI (Android): https://play.google.com/store/apps/details?id=com.nklee.glucofresh - Sotong (Android): https://play.google.com/store/apps/details?id=com.rootcorp.sotong
- Country Manager of Megazone Cloud Vietnam — built and led the subsidiary with full P&L ownership (originally under Megazone Corp; now part of Megazone Cloud following its majority stake acquisition). - Spearheaded cloud service expansion and strategic growth in Vietnam across AWS, Azure, and GCP — driving enterprise partnerships and sustained revenue growth. - Increased revenue 10x from 2020 to 2024, establishing Megazone as a leading Cloud MSP (Managed Service Provider) in the Vietnamese and broader Southeast Asian markets. - Launched a software development outsourcing business in 2020 — expanding service offerings beyond cloud reselling and building Vietnam-based engineering capacity for cross-border projects. - Introduced enterprise AI solutions in 2024 including Microsoft Copilot deployment, accelerating digital transformation for clients across manufacturing, finance, and retail sectors. - Built strong relationships with the Vietnamese government and the Korean Embassy, positioning Megazone as a trusted advisor in cloud policy, ICT regulation, and digital infrastructure discussions. - Steering Committee Member of the Korean Chamber of Commerce (KoCham) in Vietnam — actively contributing to business collaboration between Korean and Vietnamese enterprises. - Led cross-functional teams (sales, engineering, marketing, operations) to strengthen business development, customer engagement, and regional market penetration across Korea, Vietnam, and ASEAN. - Chairman of the Digital Economy Working Group at Vietnam Business Forum (VBF) since 2018 — collaborating with the Vietnamese government and industry leaders to shape national digital policies. https://vbf.org.vn/2018/11/12/digital-economy-working-group/
- Chief Technology Officer of Evangels — led technology strategy, platform architecture, and engineering for the cloud marketplace business (company later acquired by Megazone). - Built and launched BYOL Center, a B2B2I cloud marketplace simplifying cloud service procurement and licensing across AWS, Azure, and GCP for enterprise clients. - Designed and implemented OAuth-based unified authentication system, enhancing security and access management across integrated cloud services. - Filed two patent applications for innovative cloud service deployment and license management automation. - Established the technology roadmap and engineering organization from inception, building the technical foundation that led to the company's later acquisition by Megazone.
- Director at Samsung Electronics — led Samsung Cloud strategy, mobile e-commerce platform planning, and European B2B technical sales for the enterprise software portfolio. - Drove Samsung Cloud product strategy and execution, architecting large-scale cloud-based solutions for both consumer and enterprise segments. - Planned and developed mobile e-commerce and AI-driven marketing platforms — leveraging location and behavioral data to personalize user engagement and accelerate customer acquisition. - Led technical pre-sales initiatives across European B2B markets, driving enterprise adoption of Samsung KNOX, Samsung School Cloud, AWS Workspace, and Microsoft Office 365. - Built cross-functional partnerships connecting product strategy, sales enablement, and customer engagement across Samsung's global ecosystem.
- Senior Vice President of Business Planning at TILON — led sales, marketing, and business strategy for VDI and application virtualization solutions in the Korean enterprise market. - Directed sales and marketing for cloud-based VDI and application virtualization solutions, competing against Citrix and VMware in the Korean enterprise market. - Secured a $1M contract with SK Telecom for large-scale VDI deployment — establishing a flagship reference and accelerating enterprise pipeline. - Drove enterprise sales pipeline across Korean conglomerates and public sector, positioning TILON's solutions for cloud and virtualization adoption. - Partnered with the Korea Communications Commission (KCC) to develop national Cloud Computing SLA Guidelines, contributing to Korea's cloud regulatory framework.