ABOUT FIORI

One person, working behind your agency.

Fiori Analytics is Daniel Vieira. Before I built measurement infrastructure, I ran businesses where bad data cost real money. That's why I build for the decision at the end of the chain, where the money actually moves.

Daniel Vieira, founder of Fiori Analytics

Daniel Vieira

Founder and Lead Engineer, Fiori Analytics LLC

I spent almost 20 years building and running fashion businesses in São Paulo: retail, wholesale, apparel production. Hundreds of operational decisions, and the same problem every time. The data was never reliable enough to bet a budget on.

I know what it's like to sit across from a report, not trust the numbers, and still have to make the call. That shapes what I build.

I work on the layer underneath: GA4, GTM, server-side tracking, Meta CAPI, BigQuery. A dashboard is only as good as the numbers feeding it, and that's usually where things break.

Analytics built by someone who's made the decisions.

The data has to hold up when someone acts on it. That's the bar I build to.

I build for the business layer

Every build decision comes back to one question: can the person spending the money trust the number at the end?

I document because I've inherited undocumented systems

I've taken over businesses where nobody could explain how anything worked. Documentation at handover is what separates a setup that survives a staff change from one that breaks the first time something moves.

Just me, doing the work.

Why I keep it small

I take on a few projects at a time, because that's what one person can do well.

I do the work myself. There's no junior analyst and no project manager between you and the build. When you ask a question about the implementation, you're asking the person who wrote it.

That caps how much I can take on. It also means your project gets my actual attention.

What I don't do

I don't buy or manage media. That stays with the agency
I never contact a client you introduce to me unless you ask, and I don't use anything from your projects to approach them
I don't build dashboards on top of tracking nobody validated
I don't deliver a report without the method written down

If you work with Fiori Analytics, you work with the person who designs the method, builds it, checks the data and hands it over.

If that's the kind of partner you're after, let's talk.

Twenty minutes is usually enough to tell whether a client's measurement can be fixed, what it would take, and what it would cost you.

There's no sales deck.

How I work, and why.

Tracking is infrastructure, not a checkbox

A lot of tracking gets set up in a rush before launch, and nobody writes down how it works. Six months later, nobody can fix it.

Ownership must transfer at handover

When an engagement ends, the client owns everything: accounts, containers, documentation, recordings. I don't hold access, and nobody needs a retainer to keep it running. Full ownership at handover is not negotiable.

Validated against real traffic

GTM preview mode shows you whether tags fire. It doesn't tell you whether the data is correct. Every implementation is validated against live traffic and cross-referenced with the source of truth before it is called done.

Every finding comes with the method

Every finding says what's broken, how I checked it, and what the fix involves. I don't put a dollar figure on a gap until I've seen the client's own numbers.

Start with one client site.

Send me one client or prospect domain. You get a teardown of what their tracking is doing, run from the outside with no logins. It comes back without Fiori branding, so you can put your own name on it.

One per agency. Back within 5 business days.