ilios Galil · AI expert

I help teams put AI into production without the waste.

I build AI agents, make AI features faster and cheaper to run, and help products show up in Google and in AI answers. Hire me for a project, or part-time as a fractional engineer.

Ask me about Jev
A new kind of model from TypeSafe that returns decisions instead of text.

AI agents & automationAI cost & speedSEO, AEO & GEOFractional engineering

01 / Selected work

LIVE SITES, APPS AND IN-HOUSE TOOLS

Things I’ve built
for clients and for myself.

Each one links to a short write-up of what it does and what I worked on.

Showing 8 projects

cheapest.domains

Web app · Domain comparison

Compares domain prices with the renewal cost up front, since that’s the price you keep paying. AI assistants can query the same data through MCP.

expensent.com

Web app · AI invoice processing

Finds invoices and receipts in connected inboxes and forwards them to an accountant or accounting tools.

sautenparachute.paris

Ecommerce · Bookings

Website and booking system for Saut en Parachute Paris. Customers buy jumps and gift vouchers and pick a date online.

diagonale-chute-libre.com

Ecommerce · Experiences

Ecommerce site for Diagonale Chute Libre, a skydiving centre in Gap–Tallard. Tandem jumps and training can be bought and booked on the site.

FuelAzores

Web app · Local utility

A web app that turns official fuel prices and announced changes into refill cost comparisons for drivers in the Azores.

Fast AL Azores

Web app · Accommodation reporting

A browser tool for accommodation owners in the Azores that turns Airbnb exports into monthly guest, overnight-stay and revenue figures for SREA reporting.

In-house tool

SaaS Factory

Mac app · AI-assisted research

A Mac app for jotting down SaaS ideas as they come, researching them with AI and deciding which ones deserve more time.

In-house tool

PerfSEO

Developer tool · Search performance

An in-house toolkit that combines crawl, search and performance data to help decide which technical SEO fixes matter most.

02 / How I can help

AI, ENGINEERING & SEARCH

Most of my work
is AI engineering.

Some clients need an agent built. Others already run AI in production and want it faster or cheaper, or want their product to turn up in AI answers. I also take on general engineering and product work.

01

AI agents & automation

Agents that take a task off someone’s plate, like sorting incoming requests or pulling data out of documents. I connect them to your tools and data (tool calling, retrieval, MCP) and test them on your own cases before they go live.

  • Agents, tool calling & MCP servers
  • LLM features in web apps & SaaS
  • Workflow automation & integrations
Talk about an agent
02

AI cost & speed optimisation

If your AI features are slow or the bill keeps growing, I find out where the time and money go and fix it. That might mean a smaller model for the easy steps, caching and batching, or not sending the model work it doesn’t need to see. For decisions like classifying, routing or scoring, a System One model such as TypeSafe’s Jev is worth a look. It returns a typed answer with a probability instead of text, and it’s much faster and cheaper than asking a large language model.

  • Cost & latency audits
  • Model routing, caching & batching
  • System One models such as Jev
Ask about your AI costs
03

SEO, AEO & GEO

Getting found on Google, and quoted by AI assistants like ChatGPT and Perplexity. That second part is what answer engine optimisation (AEO) and generative engine optimisation (GEO) are about. I work on the technical side and on the content, so both search engines and AI assistants understand what you do.

  • Technical SEO & site performance
  • AEO & GEO: visibility in AI answers
  • Agent-ready data & MCP tools
Ask about visibility
04

Fractional software engineering

A senior engineer for a few days a week, or for a set period. I’ve built web apps, SaaS products, booking systems and a lot of integrations, and I’m used to owning what I ship.

  • Web applications & SaaS
  • Full-stack development & integrations
  • Commerce, bookings & business systems
Ask about a fractional role
05

Product strategy & delivery

Help deciding what to build first and planning the work around it. I’ve started a few products of my own, so I know how much usually gets cut before launch.

  • Product positioning & priorities
  • Roadmaps & delivery planning
  • Launch & go-to-market
Talk it through
Sunlight breaking through clouds over the ocean and a green hillside.

03 / The person behind Perf Website

Hi, I’m ilios.
I work in AI.

I’m an AI engineer based in the Azores, Portugal. AI is the main thing I work on.

I also build my own products. Some stay side projects, a few became proper businesses. Running them keeps me honest about what AI costs, how fast it needs to be and what people actually do with it.

Perf Website is the name I work under.

Email me LinkedIn (opens in a new tab)

04 / How I work

I like to start small.

01 / Understand

Figure out the problem.

What’s the goal, who uses it, what data is there, and how will we know it worked?

02 / Prove

Try it on real data.

Build the smallest thing that could work and test it before spending more.

03 / Deliver

Ship it, then improve it.

Put it live, keep an eye on it and fix what the numbers point to.

05 / Ways to work together

Tell me what
you’re working on.

A few lines is plenty to start with.

For founders & businesses

Bring me one problem, or bring me in for the whole build. I can work on a fixed project or alongside your team.

Timing and budget help, if you know them.