I'm Gisella. I design products from zero to shipped — for startups, scale-ups, and the occasional corporate maze. I've built teams, and now I prototype in code because real data beats hypothetical flows.
01 / EXPERIENCE
A curated highlight reel. Ask for the full one.
Designing across EV driver apps and ops platforms. Squeezing software and hardware into the same conversation.
Defined a creative AI agent behaviour for brand/marketing agencies. Focused on AI conversations, patterns and evals.
Translating messy user input into structured product specs with AI. When ChatGPT just started and the world still didn't know how to use beyond a chatbot.
Built the design org from 1 to 25. Led 3 SaaS products. One of my favourite products, CRI Cyber Risk Insights Platform, named market leader by Forrester Wave. Not bad!
Creating EFSET, the first ever online standardised English test. 3M users in year one. Incredible opportunity to experience and grow a product beyond the initial western vision.
02 / BEYOND WORK
Things made on my own time, with no committee.
Droplet2026
Memory, behaviour change, and an honest mirror. Droplet captures the small daily signals you generate — and turns them into performance insight without making you fill in another form.
What is an eval?
A repeatable test of whether your AI does the thing you actually wanted.
LLM-as-a-judge
Use a model to score outputs — then check the judge against humans.
Pass rate vs pass@k
One good answer in five tries is a different product than one every time.
Start with real inputs
Ten messy real tasks beat a hundred imagined ones.
Evals in CI
If a change makes it worse, you want to know before your users do.
Evals Evals Evals2026
Five interactive decks — foundations, types of evals, metrics and scoring, building your first eval, and shipping them in production. Written for designers and product people who need to judge AI outputs without training a model.
The Good Bag2026
A curated directory of better party-bag fillers from brands shipping to the UK — sustainable, plastic-free, vegan and lower-sugar toys, treats, books and small wonders kids actually keep.
Occasional, opinionated, never sponsored.