Simon Powell
Self-taught full stack engineer. I have designed, built, deployed and now operate four live products on my own - frontend, backend, database, infrastructure and the on-call.
About
Self-taught full stack engineer. I have designed, built, deployed and now operate four live products on my own - frontend, backend, database, infrastructure and the on-call. Stack: TypeScript, React and Next.js; Python and Flask; PostgreSQL with schemas, constraints and row-level security; Docker and docker-compose; Stripe, Twilio and LLM APIs in production. Mobile: I shipped an iOS app using Capacitor, with background audio, lock-screen controls and email deep links, and the Android build in Play registration. That is Capacitor rather than React Native or Flutter, so I know the App Store and Play release process well but would be learning those two frameworks. I develop with AI assistance and review what it produces. That review catches things - I found a billing defect before launch where Stripe records a cancellation as a cancel_at timestamp rather than a boolean, which would have kept charging customers who had already cancelled. Before this, eight years in Transport for London’s finance function and eighteen running my own business.
- 26 years' experience
- Joined September 2026
Industry experience
- Software & Internet
- Financial Services
- Transportation & Logistics
- Education
- Professional Services
Work experience· 4 roles
Built and operated a booking platform for the driving business with three distinct user roles: learners (comparing instructors and booking lessons), a student portal, and an instructor login. Managed core business functions end-to-end, owning pricing, marketing, scheduling, customer relationships, and P&L, with the only line of support for users on their journeys. Responsibilities combined product delivery and operational ownership, ensuring the platform and operations supported real demand and day-to-day execution.
Served as finance point of reference for key clients and business managers, verifying reports produced by non-finance staff before they reached senior management. Produced four-week management accounts packs and rolling forecasts to support decision-making rather than relying on raw figures.
Contributed to the implementation of a new timesheet system, including requirements gathering, data flow design, and rollout across fee-earning staff. Built Excel modelling and reporting tools that removed manual steps from period-end close processes.
Education
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