Technical consultancy. Full-stack engineering.
AI-augmented delivery.
Team-level output.Startup speed.
You need production software yesterday. Your team is stretched, your roadmap is slipping, and hiring takes months. I deliver disproportionate output for a solo operator, in weeks, with deep architectural experience paired with AI-augmented engineering.
This isn't a portfolio of mockups.
It's production code, live on npm.
API monetisation. Drop-in middleware. Token-based auth, credit tiers, free tier.
Published on npmPlus: a full protocol specification suite, a TypeScript SDK, AI tool integrations, a developer CLI, and two mobile apps. All interconnected. All built from scratch.
AI-augmented, not AI-dependent.
I architect. AI accelerates.
The hard decisions (what to build, how to structure it, where the seams go) come from deep experience. AI handles the volume: implementation, tests, documentation, refactoring across 12 repos simultaneously.
Full-stack, any stack.
TypeScript and C#/.NET end-to-end. React Native mobile apps. Next.js APIs. Protocol design and SDK development. Legacy system modernisation: strangler fig patterns, incremental rewrites, data migrations.
Single vision, zero handoffs.
No miscommunication between frontend, backend, and infrastructure. No sprint planning overhead. No "that's not my module." Complete ownership from database to deploy, with one coherent technical vision throughout.
Real outcomes, not hypotheticals.
6x latency reduction
A core calculation engine was too slow for real-time use. I analysed the bottlenecks with BenchmarkDotNet, redesigned the architecture using source generators and clean patterns, then rebuilt it. Latency dropped by 6x. The new architecture also showed exactly where further gains could be made across the rest of the stack.
Zero tests to comprehensive test suite on a legacy .NET monolith
A legacy .NET application built entirely on stored procedures and triggers, with no tests and no documentation. I performance-tuned the critical pain points first, then designed the decomposition into a modular architecture. Built the first vertical slice with full test coverage using black-box testing against sanitised production data.
Legacy platform modernised, retention restored
A flagship product with long-standing performance issues needed urgent attention. I identified the root causes, drove targeted fixes, and defined the next-generation architecture: React, Federated GraphQL, .NET microservices on Azure. Delivered high-quality MVPs on time and to budget. Also migrated millions of lines of legacy C/C++ code to modern stacks with comprehensive automated test coverage.
Built a migration utility for a major investment bank to transfer documents and data from a legacy platform to SharePoint under very tight deadlines. It had to be right first time. Zero defects, uneventful go-live.
“He doesn't just tell you what a solution should be, he actually builds it as a proof of concept. You always get an honest, real-world view of the challenge.”Former colleagueHealthcare, via LinkedIn
“He is the one to go to if you want to solve problems. A key reference person for everybody in the team: architects, developers, business analysts, product managers. Having him in the team means success.”Former colleagueHealthcare, via LinkedIn
“Always willing to support discussions at any level of the organisation. An accomplished presenter who links the solution back to the strategic need.”Former colleagueHealthcare, via LinkedIn
Enterprise pedigree.
Startup velocity.
Full-stack across every era of modern software. C, C++, Java, C#/.NET, TypeScript, React Native. Technologies come and go. What endures is knowing how to build systems that last.
Delivered for Barclays, HSBC, Deutsche Bank, Experian, and Tunstall Healthcare across Financial Services and Healthcare.
Tell me what you need built.
I'll tell you honestly whether I'm the right fit, what it'll take, and how fast we can ship it.