Jun Kim

Jun Kim
Occupation	Co-founder and CEO of Aside
Known for	Founding Aside, an AI copilot for live sales calls

Jun Kim is a software engineer and entrepreneur based in San Francisco, California. He is the co-founder and CEO of Aside, a Y Combinator-backed company (F25 batch) that develops an AI-powered real-time intelligence tool for enterprise technology sales teams.

Career

Kim began coding at the age of nine. At twelve, he built his own operating system. At fourteen, he founded an online developer community in South Korea that has since grown to over 200,000 members.

Kim was a member of the founding team at Airbridge, a mobile measurement platform (MMP). In that role, he worked as a founding engineer and helped scale the business-to-business SaaS product to $30 million in annual recurring revenue, contributing to its growth into what became described as the leading MMP solution in the Asia-Pacific market.

Kim also served as a founding engineer on Cosmo, a mobile application associated with the K-pop group tripleS. He has described the project as motivated by problems he experienced as a K-pop fan.

Aside

Kim founded Aside to build a real-time AI copilot for live sales conversations. The company's flagship product, Caret, is a desktop application that listens to meetings and retrieves answers from an organization's internal documentation, CRM data, and historical call transcripts in under one second. The tool is designed to help enterprise technology sales representatives respond to questions during live calls without needing to search for information manually.

Aside was accepted into Y Combinator's Fall 2025 batch. The company is based in San Francisco and operates in the sales automation and artificial intelligence sectors. As of early 2026, the company had between two and ten employees.