SpiralClass
Live · real paymentsBooking, payments and video for independent teachers. Live with real payments; built and run solo.
Available now for remote contract work
I find out what users need, then ship it with coding agents.
I'm Jay Stewart, a product engineer: users, design, code, payments and production. Looking for contract work with early-stage startups.
UK sole trader. Overlaps UK afternoons and US hours.
3products shipped since March 2026
2live, one taking real payments
8 yearsof e-commerce backends, including Dyson's store
Selected work · all four →
WantToJoin
Pilot · one hostelTonight's hostel outings, and who's going, on one link. From 2,800 WhatsApp messages to a live pilot in three days.
Beckon
Live · October 2026Your coding agent is waiting; answer it from your phone. End-to-end encrypted, open source.
How I work
- Start with users.Read what they actually say. Change the plan when the evidence does.
- Write down when to stop.Hypothesis, measure and stopping rule before any code.
- I own what the agents write.Every change gets a pull request, tests and a real-browser check.
Before this
- Independent product engineerSpiralClass, WantToJoin, Beckon; building Stackquake.
- Career breakSix years travelling. Back because coding agents changed what one person can ship.
- G&V | Venture Brands AgencyContract backend engineer on high-traffic e-commerce, including Dyson.
- Thrive ChiropracticBuilt and ran their booking and payments platform.
- Folk DigitalBackend features and integrations for e-commerce clients.
- C3 MediaJunior PHP developer to building whole e-commerce systems.
Need a first version, or a second pair of hands?
Email what you're building and what you need first. I'll reply within a working day.