Senior full-stack engineer · Salisbury, UK
Full-stack, full range.
I'm Simon Tregunna, a senior full-stack engineer with two decades shipping for the web. From enterprise platforms and fintech to e-commerce and blockchain: one engineer who understood the assignment.
Big brand energy
- Barclays
- BT
- Laura Ashley
- RBS
- Rowntrees
What I do
No narrow lanes.
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Web application engineering
Production front ends and the services behind them, component architectures, state, APIs and the glue that makes them fast and maintainable.
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Performance & SEO
Server-rendered, semantic, accessible sites that load fast and are legible to search engines and AI crawlers, not just to browsers.
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Enterprise & fintech
Delivery inside large organisations, onboarding journeys, help & support platforms and customer-facing tools built to real-world constraints.
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Blockchain & web3
Recent work bringing on-chain interactions to the browser, wallets, contracts and the UX that makes decentralised systems usable.
Featured work
Receipts.
Blockchain / web3 · Lead engineer
Curator Web3 data-curation platform
A production platform for the Geo / The Graph ecosystem: communities run bounties, host live video calls, track attendance and publish curated records on-chain to a decentralized knowledge graph. A five-app TypeScript monorepo (~150K LOC) on Effect-TS, React 19 and Neo4j. I was lead engineer and top contributor.
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RegTech · Senior frontend (contract)
artAML AML / KYC compliance platform
Embedded senior frontend contractor on a production B2B AML/KYC compliance platform: a tenant-configurable white-label theming system, two customer-facing satellite apps, and an Angular 18→20 / Node 18→22 modernisation kept green across 1,200+ specs.
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Full-stack · Headless commerce
Vii Dohtem Headless multi-brand platform
A headless, multi-site platform under one WordPress/WooCommerce engine: a smoked-food storefront, a knife-sharpening brand site (Next.js 15 / React 19 + GSAP) and a HACCP food-safety compliance product, all on a self-managed Ubuntu VPS with CI/CD and per-subdomain TLS.
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Whether it's a greenfield product, a rescue job, or something on-chain, let's talk about it.
Get in touch