status: heads-down — staff eng @ Pismo/Visa · open to: conversations about agent-driven engineering · replies < 24h

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Jonathan Leahy

Full-stack developer. Builder of things.

Staff Engineer at Pismo (acquired by Visa), building payments infrastructure at scale. Nights and weekends I'm building Gyrum — a self-improving software factory that builds, tests, and deploys products autonomously.

Featured Projects

Gyrum.ai

An autonomous software factory that builds, tests, and deploys products. 93+ projects shipped.

GoSvelteKitPostgreSQLClaude

Distill

Paste a YouTube URL, get a structured research report. Fact-checking, chapters, actionable items.

GoSvelteKityt-dlpClaude

Buzzy

Family chore bounty board where kids earn pocket money. Multi-currency, QR invites.

GoReactGraphQLPostgreSQL

Cannon Drop

Play

Physics-based browser game. Aim, fire, destroy targets.

JavaScriptCanvasPhysics

Prism Light

Play

A light-bending puzzle game. Redirect beams through prisms to solve levels.

JavaScriptCanvas

answers 'can I even get this person?' before they wonder — try copy email.