Fractional CTO support
Senior technology leadership without a full-time hire — for founders and scale-ups who need a steady hand.
Nathan John · CTO · LondonA technology leader,
A technology leader,
builder & AI researcher.
Helping teams make better technical decisions — from strategy and architecture through to delivery.
I've led technology in startups, scale-ups, games, machine learning, and digital products, and I like staying close enough to the work to know what will actually ship.
What I help with
What I should build, how to build it, and which decisions support the business.
I combine leadership, product understanding, and hands-on technical depth — across startups, scale-ups, games, machine learning and digital products.
Technology strategy
Deciding what to build and why, so technical choices support the business rather than slow it down.
Product & platform architecture
Systems that are clear enough to understand, robust enough to rely on, and practical enough to ship.
Engineering leadership & delivery
Building teams, setting cadence, and staying close to the work to keep delivery honest.
Technical due diligence
Helping VCs and investors evaluate a technology offering — risks, strengths, and what it would take to scale.
Vendor & platform decisions
Cutting through options to the choice that fits the team, the budget, and the next two years.
Zerodowntime
Migrated peak-season enrolment from WordPress to Next.js + AWS Lambdas without dropping a beat.
+17%
Uplift in extra-credit purchases from a new booking system at Wildkind.
4platforms
Shipped Standpoint to PC, Mac, Linux & Xbox One as sole core programmer.
10+ yrs
Leading and mentoring engineering teams across games, ML and web.
Selected projects
A bit of range — founder, researcher, and builder.
For v1 these are the headlines; full case studies can follow.
Product · SaaS · Tools
KitTracker
A web app for event kit managers to check equipment in and out at festivals, tours, and live productions — full audit trail, real-time availability across a whole event.
Why it mattersProof I can ship a real product: designed, built, and launched solo — multi-tenant auth, Paddle billing, CSV import, and an Electron build for offline venues. One person, full stack, in production.
Founder / Full-stack engineer
Next.jsTypeScriptNeon PostgresPaddleElectron
Founder · Product
Unruly Attractions / Standpoint
Indie studio I founded and a first-person puzzle game shipped across four platforms.
Why it mattersFounder-level product and building experience — sole programmer, leading an international team of artists, designers and musicians end-to-end.
Founder / Programmer
UnrealC++Console SDKsLive ops
Research · AI
Adversarial Behaviour Debugging
PhD research into finding and explaining failure modes in learned agent behaviour.
Why it mattersTechnical depth and originality — novel methods for probing where ML systems break and why.
PhD researcher
PythonRLML tooling
Play · Live experiments
Jump, Die, Repeat
A playground for live AI and game systems experiments, built in the open.
Why it mattersCuriosity made visible — fast iteration on game/AI ideas and live experimentation.
Builder
TypeScriptGame systemsAI
Other things I'm building
A small-batch jerk-seasoning project, the occasional Twitch stream, and whatever else is on the bench this month.
About
I'm Nathan — Nate to most people — a technology leader and hands-on builder based in London. I've worked across startups, scale-ups, games, machine learning, web platforms and consulting, usually somewhere between strategy, architecture, product and delivery. I'm interested in technology that fits the organisation using it: clear enough to understand, robust enough to rely on, and practical enough to actually ship.
More about me