Joongi is the main author of Backend.AI and CTO in Lablup. He received Ph.D in Computer Science from KAIST by developing a GPU-accelerated packet processing framework offering world-first 80 Gbps performance. His main interests are analysis and design of scalable backend systems. He is also an open-source enthusiast; has contributed to a number of open source projects, such as Python, iPuTTY, Textcube, aiodocker, aiohttp, pyzmq, DPDK, and more.