- lead the Connected service engineering group at 42dot and am responsible for developing app store for connected car infotainment system, connected car services (such as remote vehicle control), and mobility services (such as autonomous car-hailing and vehicle subscription platform).- led the Kakao i Connect division at Kakao Enterprise. (Division Head/ Technical vice president). - based on the conversational AI platform represented by Kakao i, I was responsible for AI assistant, AI contact center, and real-time video streaming platform.- developed Kakao Mini, an AI speaker, and Heykakao, a voice assistant service.- 20 years Server Backend Developer, Expert in Ruby on Rails and Large-scale Distributed Processing Systems.The Kakao i Connect Division develops and operates many business products and B2C service products based on the conversational AI platform originated by Kakao Mini. - As the leader of the division, I was responsible for technical leadership, - directly responsible for developing the conversational AI platform and coordinating and leading the owners of each product based on this platform. Products derived from this platform include (1) Hey Kakao and Kakao Mini: a voice-based AI speaker and a voice assistant mobile app. (2) AI assistant SDK: provide voice command interface SDKs to many customers such as Kakao Navi, Kakao Map, Hyundai/Kia Motors, and KOMAX. provide services to about 2 million weekly active users. (3) Kakao i Connect Center: developed an A.I. contact center solution by combining the conversational AI platform with a call infrastructure. consists of intelligent voice call bots and chatbots for customer communication and is provided to many business customers.As an engineer, I have extensive experience developing platform backend products (AI chatbots, AI speakers, etc.) that deliver AI technologies such as speech recognition, natural language processing, and image processing to end consumers. I am also strong in server backend technologies including high volume traffic, distributed processing, and real-time processing. ( 1.5K+ PM/VMs, avg. 2M+ WAU, max 10M+ unique users, 10K+ server TPS, and so on. )As a leader and manager, I have successfully managed an organization of 150+ people, not only engineers but also PMs, UI/UX, business, etc.