Senior Full Stack Engineer / Founding Engineer

Company Description Vintage is the operating system for family offices managing alternative investments. We replace the spreadsheets, shared drives, and disconnected tools that family offices use to track portfolios worth $100M–$5B. The platform handles document extraction (capital calls, K-1s, quarterly statements), portfolio analytics, CRM, and a suite of AI agents that automate the operational grunt work — chasing GPs for missing documents, reconciling NAVs, preparing meeting briefs, monitor…