Seoul, South Korea
I architect device platform systems across hardware, software, acoustics, and compute under real product constraints. For over 20 years at Samsung Mobile, I have worked on flagship devices shipped at a scale of over 300 million units. My role has been to define system behavior under real constraints, not ideal conditions. My work is at the boundary where silicon limits, mechanical design, and AI workloads meet. In that space, every decision is a trade-off. I do not treat constraints as something to optimize later. I use them to shape the system from the start. When compute budget was reduced during development, I changed the system architecture instead of lowering quality. By redesigning the pipeline and physical structure, we removed dependency on processing and kept performance. When devices became thinner than what acoustics would normally allow, I worked on hardware geometry and DNN processing together from the beginning. That made the target performance possible. Across multiple products, I have decided what should not run so the system can hold. From that experience, I focus on a simple principle. Continuous intelligence does not mean continuous compute. What matters is deciding when the system should act, wait, or stay silent. That decision defines whether AI becomes a real product. My background is in physical system design and acoustics. I extend that into AI system architecture, making sure features operate within power, thermal, and reliability limits. I have also built multi-supplier structures across APAC, turning single-vendor dependency into scalable platforms. Now I focus on always-on AI systems for wearables and AR, where the gap between demo and real product is the largest. The question I keep coming back to is simple. Who decides when AI runs in a real system?
Architect end-to-end platform systems for Galaxy flagship devices, defining trade-offs across silicon, power, acoustics, and on-device AI. Restructured the audio pipeline under reduced compute budget by redesigning system architecture and physical structure, removing dependency on processing while maintaining acoustic performance. Co-designed hardware geometry and DNN processing from the start for ultra-thin form factors, achieving target output where a sequential hardware then software approach would not have worked. Proposed and executed a counter decision on a flagship tablet program, presenting a data-driven alternative that preserved platform integrity under aggressive cost and thickness constraints. Built cross-domain arbitration frameworks to resolve conflicts between silicon constraints, mechanical limits, and AI workloads across multiple product generations. Defined system behavior under power and thermal constraints to prevent performance collapse in real usage. Made system-level decisions on what AI workloads should run and what should not, based on power, thermal, and reliability limits in real products.
MX → Visual Display Division (1 year) • Dispatched as a principal level technical lead to introduce Mobile division component review and validation frameworks into Visual Display programs • Structured clearer evaluation criteria and supplier review processes to improve decision transparency and engineering alignment • Operated across divisions during a leadership transition period, maintaining architectural continuity under organizational uncertainty
• Selected as Top 1 to 2 percent Core Talent for seven consecutive years • Introduced a rectangular bass enhancement speaker architecture adopted across the Galaxy series, redefining low frequency performance within smartphone form factor constraints • Led audio implementation for early 3G mobile platforms, establishing scalable acoustic design practices • Built the division’s global audio R&D infrastructure including anechoic chambers and standardized measurement systems These foundational experiences in acoustics, materials science, and manufacturing-scale engineering became the basis for the cross-domain system architecture practice I lead today.
Measurement and analysis of environmental noise & vibration from aircraft, construction sites, and transportation systems