[STATUS]Available for new projects

Turning raw traffic into clean data.

Freelance specialist in analytics & marketing tracking — for both web platforms and mobile apps. Google stack (GTM, sGTM, GA4, Firebase), marketing pixels (Meta, Criteo, TikTok, LinkedIn) and mobile SDKs (AppsFlyer, Adjust, Firebase). Measurement that survives scale, ITP and ad-blockers.

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EVENTclick / viewDATALAYERwindow.dataLayerGTM / sGTMtag routingGA4META CAPIADS / PIXELS
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What I do

01. ANALYTICS

GA4, Firebase & BigQuery

Unified web + app measurement in GA4 and Firebase — from audit to advanced e-commerce events and BigQuery warehousing.

02. TAGGING

Server-side GTM & Mobile SDKs

sGTM for the web, native + hybrid SDKs for mobile. One consistent event schema across every surface.

03. MARKETING

Web pixels & app attribution

Meta CAPI, Criteo, TikTok, LinkedIn on the web. AppsFlyer, Adjust, Firebase for iOS and Android. Full-funnel attribution done right.

Core capabilities

End-to-end tracking implementations for web platforms and mobile apps — e-commerce, SaaS and lead-gen.

The infrastructure.

Full ecosystem connectivity across every platform your marketing team uses — web and mobile.

Web
Mobile
Server-side

Methodology

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01

Audit

Mapping existing infrastructure across web and app. Finding critical fail points.

02

Blueprint

Unified measurement plan, shared event schema for web and mobile, server routing designed before any tag is touched.

03

Deploy

Clean implementation in GTM, sGTM, Firebase, mobile SDKs and platform pixels. Fully version-controlled.

04

Verify

QA across devices, OSes, browsers, apps and consent states. 100% data accuracy before go-live.

05

Handover

Documentation, team training and optional monitoring.

14+
Platforms & SDKs integrated
7
Core service areas
5
Step verification methodology
PK
Patryk Kinel

Engineer-first measurement

I've spent years bridging marketing needs and technical constraints — on the web and inside mobile apps. My work isn't about "adding another pixel" — it's about building data infrastructure that survives browser changes, ad-blockers, ITP, ATT and privacy regulations.

Whether you run a high-growth e-commerce brand with a companion mobile app, a native iOS/Android product, or a B2B SaaS with a hybrid app, I help you see clearly what's happening at every stage of your funnel — on every surface.

Frequently asked

How much does a tracking audit or implementation cost?+

It depends on scope — number of platforms (web, iOS, Android), current state of your tracking, and whether server-side tagging is involved. Send a brief and I'll reply with a scoped estimate within 24h.

How long does an implementation take?+

Most engagements follow the five-step process below: audit, blueprint, deploy, verify, handover. A single-platform GTM/GA4 cleanup can take one to two weeks; a full web + app + server-side rollout takes longer, scoped after the audit.

Do you work with e-commerce, SaaS, and mobile apps?+

Yes — e-commerce, B2B SaaS and lead-gen sites on the web, plus native iOS/Android and hybrid apps (React Native, Flutter) using Firebase, GA4 for Apps, AppsFlyer and Adjust.

My GTM/GA4 is already set up but something feels off — can you help?+

Yes, this is the most common starting point. I run an audit first to map duplicate fires, data leakage and attribution gaps before changing anything.

Do you handle GDPR consent and Apple ATT?+

Yes — Consent Mode v2 with CMPs like Cookiebot, OneTrust and Consentmanager on the web, and Apple ATT handling on iOS, with modeled data enabled where consent is declined.

Stop guessing.
Start measuring accurately.

Send a short project brief — I reply within 24h with next steps.

Send me a message

A short project brief is enough. I reply within 24h.