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: enterprise platforms, fintech, e-commerce, blockchain, right down to smart, honest sites for local businesses and clubs.
Big brand energy
What I do
No narrow lanes.
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Web development & design
Designing and building for the web end to end, hand-crafted responsive front ends through to WordPress and WooCommerce stores, fast, accessible and simple to run.
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Web application engineering
Rich, stateful web apps: complex forms, multi-step workflows and data-visualisation dashboards, backed by the APIs and services that keep them fast and maintainable.
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Performance & SEO
Server-rendered, semantic, accessible sites that load fast and read cleanly to search engines and AI crawlers, not just browsers. The full technical-SEO stack too, Core Web Vitals, structured data, canonical URLs, XML sitemaps and instant indexing, so pages get found and rank.
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Enterprise, fintech & web3
Delivery for large organisations and regulated fintech, from onboarding journeys and support platforms to recent on-chain work, wallets, smart contracts and usable web3 UX.
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.
Read case studyGot something to build?
Whether it's a greenfield product, a rescue job, or something on-chain, let's talk about it.
Get in touch