David Johnston — Founder

David Johnston is a tech leader and serial founder with multiple exits under his belt. He began his career as a software engineer, later moving into leadership roles across startups, growth-stage companies, and enterprises. Along the way, he’s led engineering and product teams, helped scale payment systems from $400M to $2.5B, founded and sold multiple companies. Today, David is the co-founder of DoorSpot and the founder of CodeGuild AI. 🔑 About DoorSpot DoorSpot is a modern property management platform built for corporate housing and high-touch rental operations. It replaces fragmented tools with a single system for reservations, accounting, tenant communication, and operational workflows – designed for teams that treat every stay like a VIP experience. • Built specifically for corporate housing, not retrofitted from vacation or long-term rental software • Communication-first design with full message delivery and activity tracking • Flexible, reservation-based pricing and workflows that match how real operators work Learn more at doorspot.com 👾 About CodeGuild AI CodeGuild AI is the memory layer for AI-powered teams. It captures knowledge automatically as people work, preserves shared context across sessions and tools, and delivers the right information exactly when it’s needed → inside the AI tools teams already use. • Persistent memory so AI doesn’t restart from scratch every session • Shared intelligence that turns individual learning into team-wide knowledge • Tool-agnostic by design, working underneath Claude, ChatGPT, Cursor, and more Learn more at codeguild.ai

Stackforce AI infers this person is a SaaS and Fintech expert with extensive leadership experience.

Location: Lexington, Kentucky, United States

Experience: 20 yrs 5 mos