Toby Nelson

Full-stack developer helping businesses put LLMs into production.

I’m Toby, co-founder and lead engineer of Navanto — a serverless SaaS platform for the construction industry, built around agentic AI.

Before that, over a decade in energy trading — building trading compliance systems in London and the US, and moving up from support to lead engineer and service owner.

Based
London, UK
Focus
LLM integration · Full-stack delivery
Status
Available now for new contracts.

Core stack

  • .NET
  • Angular
  • AWS
  • TypeScript
  • Serverless
  • Agentic AI
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01How I can help

LLM integration

Bringing language models into existing products and workflows — deciding where they earn their place, and building the guardrails that make the output trustworthy enough to ship.

Full-stack product development

Angular front ends on .NET APIs, taken from an idea to something real users depend on daily — including the unglamorous parts that keep it running.

AWS & serverless architecture

Serverless systems that stay cheap when quiet and hold up when busy. Lambda, DynamoDB, and Aurora DSQL, designed to be operated by a small team.

02Selected work

Navanto

A SaaS project management platform for construction companies. I designed and built it — the system architecture, Angular front end, .NET APIs, serverless AWS backend, and the agentic AI behind its core features.

  • Angular
  • .NET
  • Lambda
  • Aurora DSQL
  • DynamoDB
  • Agentic AI

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Trading compliance systems

Compliance systems for energy trading desks in London and the US — the controls and reporting that keep a trading operation inside its regulatory obligations. I led the engineering and owned the service end to end, from architecture and delivery through to the day-to-day reliability the desks depended on.

  • .NET
  • Angular
  • AWS
03Contact

Got something that needs building?

London, UK · Available now for new contracts.