Jonathan Leahy
Full-stack developer. Builder of things.
Staff Engineer at Pismo, A Visa Company, building payments infrastructure at scale. On nights and weekends I'm running an experiment: can a whole software company run on AI agents? I've tried versions of this before — this one's working well enough that I'm pushing it further, to see what an agent-driven company actually becomes.
Featured Projects
Agent-driven company (experiment)
An ongoing experiment in agent-run software — agents that plan, build, review, and deploy. 93+ projects shipped so far.
About me
Decades shipping software — now a passion project: automating the entire product workflow with AI agents working Agile, build to ship to support. More about me →
Buzzy
Family chore bounty board where kids earn pocket money. Multi-currency, QR invites.
Cannon Drop
PlayPhysics-based browser game. Aim, fire, destroy targets.
Days Out For The Family
Find family-friendly attractions and days out across the UK — search, favourite, and discover places near you.
What I work with
Go, TypeScript, SvelteKit, React, PostgreSQL, Docker, Kubernetes, CI/CD pipelines, AI/Claude