Jon Milles is CTO and Co-founder of Zaplar, an AI-native operating system purpose-built for hotel and hospitality operations, accepted into Y Combinator's Summer 2026 batch.

Jon co-founded Zaplar alongside Axel Andersson Lingbert, Douglas Solberg, and Oscar Karlstroemer, driven by a shared frustration with the fragmented, legacy software tools burdening hotel operators.

Jon brings deep engineering expertise to Zaplar's AI-first architecture, building a platform designed around how hotels actually run rather than layering AI onto outdated systems.

Under Jon's technical leadership, Zaplar secured early backing from Nyman Holding and private investors, and earned a coveted spot in Y Combinator's S26 cohort, validating its approach to agentic hotel software.

Zaplar consolidates 5 to 15 separate hotel tools into one autonomous platform, enabling hoteliers to reduce administration, drive upsell, and deliver better guest experiences without sacrificing control.