James Reynolds
21Labs is a Sydney agency founded and led by James Reynolds.
The short version.
James is a full-stack engineer who builds and runs production systems, and recently has focused on making AI-augmented engineering safe to run at scale. He designs, ships and hosts his own apps under seven42. Before that he led platform engineering at a live-service game studio, where cloud spend fell by 75% and the API held 99.99% uptime.
Over more than seven years his work has spanned game-server orchestration, global Kubernetes fleets, credit-management platforms for a bank, an agentic operations assistant for a site reliability team, and AI-gated CI/CD across engineering teams.
He started 21Labs to bring that experience to Sydney businesses, from the first decision about where AI fits through to custom builds when the work gets complicated.
When not looking at code, James can be found dancing or teaching salsa, out in nature on a hike, or riding his motorcycle.
See what he builds and runs himself at https://seven42.io.
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