Hayden Williams

Hello, I'm Hayden Williams

Consultant and Software Engineer in Cyber Security and AI

Worked with

Explore my work

Explore my diverse portfolio of projects in cyber security, AI, web, and more.

My latest writing

Thoughts on AI, security, and technology.

Loading latest articles...

Technical Consulting

Clear advice and working systems, not a hundred-page report.

AI Security Advisory

If your product uses AI — a chatbot, an assistant, or automation behind the scenes — I will check it is safe before someone else finds the gaps. You get a clear picture of what is risky, what is fine, and what to fix first, explained in plain English.

Architecture Consultation — from £500
A review of your plans before you build. Security mistakes are cheapest to fix on paper, and this catches them there.

Security Advisory — from £1,800
A hands-on check of something you have already built. You get a short, prioritised list of issues and a working session with your team so the fixes actually happen.

PackageScopePublished price
Architecture ConsultationReview of a planned AI system before you build it (half-day to 1 day)from £500
Security AdvisoryCheck of an existing AI system, with a prioritised list of fixes and a working session with your team (~2–3 days)from £1,800

AI Agents & Automation

I design and build AI agents that take real work off your plate — answering queries, handling documents, automating the repetitive stuff — built safely from day one, not patched up later.

PackageScopePublished price
Day rateAdvice, design, or hands-on building — whatever the day needs£600/day
Fixed-scope buildA working AI agent, agreed scope and price up frontfrom £4,000

AI Training

Hands-on AI training for your team, whether they write code or have never touched it. Built around the tools and tasks they actually use, so people leave able to do things, not just talk about them.

PackageScopePublished price
Half-day sessionWorkshop for up to ~12 peoplefrom £900
Full-day sessionWorkshop tailored to your team, with materials to keepfrom £1,500

Ongoing Advisory

Keep me on hand month to month. Retainer clients get priority scheduling and someone who already knows their product and plans, so you are not re-explaining everything each time something comes up.

PackageScopePublished price
Advisory RetainerUp to 2 days/month: advice on changes and new features, plus priority email and call accessfrom £1,000/month
Embedded RetainerUp to 4 days/month: hands-on development work, plus everything in the Advisory Retainerfrom £2,000/month

You get a fixed quote after a short intro call, so there are no surprises. Retainers run for a minimum of three months, then month to month. Prices exclude VAT where applicable.

Book a Session

Pick a time that suits you and you will get a calendar invite instantly.