Jonathan Leahy
Staff Engineer at Pismo, a Visa Company by day.
Opinions are my own — they do not reflect those of Pismo or Visa.
On nights and weekends, I run an experiment: a software company staffed by AI agents.
Gyrum — an autonomous factory that plans, builds, reviews and deploys real products to the public internet.
Bristol, UK · remote·20+ years shipping
How I work with AI
The specification comes first and tests carry it, so agents can plan, build, review and deploy repeatably.
Idea → plan → build → review → deploy → live.
Live products
Small products built, reviewed and running in the wild.
Days OutFind family-friendly attractions and days out across the UK.Open live product DueCueCreate professional invoices and track what is owed.Open live product BuzzyA family chore board where kids earn real pocket money by completing bounties.Open live product HipHipCollaborative todo lists with AI for tidying handwritten lists and pasted text.Open live product
A few things I have built
Read the investigations for the architecture, code, tests and deployment behind the work.
See the investigations →Get in touch
For hiring, partnerships or a thoughtful hello, start with the contact page.
Contact me →