Mateusz Wojasiewicz
From: Poland
Location: Warszawa, PL
On Useme since 12 June 2026
Deals 3
SUCCESSFUL: 3
DISPUTED: 0
FAILED: 0
About me
Performance marketer for e-commerce and multi-market accounts. I work hands-on in Meta Ads, Google Ads, TikTok, YouTube, GA4, GTM and Looker Studio.
I am usually brought in when an account is spending but the next decision is unclear. I first separate tracking, delivery, creative, offer and funnel issues. Then I turn the evidence into a short cut / hold / scale plan and, when agreed, implement the fixes.
Recent work includes paid-media operations across seven CEE markets and a portfolio above PLN 5M annually across Meta, TikTok and YouTube.
I can help with: - a 48-hour paid-media audit and action plan - campaign structure, budget and bidding review - conversion tracking / GA4 / GTM QA - feed, URL, UTM and placement checks - reporting logic and management-ready recommendations
I communicate directly, flag unknowns instead of hiding them, and keep changes auditable. Native Polish; English C1. Available for focused audits, implementation sprints and ongoing support.
CV / Résumé
Mar 2026 - Jun 2026
Paid Social / Performance Marketing Specialist
WITTCHEN (projekt MetaOps)
Google Ads audit for the DE market (Search, PMax, DSA): calculated gross-to-net ROAS/ERS, cut unprofitable campaigns, reallocated budget to brand and ran a PMax vs Search brand cannibalization test with clear results.
Oct 2025 - Dec 2025
Senior Communications Specialist
IPG / UM — Dyson CEE
Day-to-day media delivery for Dyson across nine CEE markets: budgets, schedules, purchase orders, performance reporting and cross-team coordination. Kept multi-market execution consistent and surfaced delivery risks early.
Jan 2025 - Oct 2025
Digital Marketing Specialist (Media Innovation)
Allegro (Allegro Pay)
Full-funnel paid media for Allegro Pay (Meta, TikTok, YouTube, Demand Gen, DV360). Optimised onboarding CPA via first-party data, event tracking and audience segmentation; cut onboarding-start CPA from PLN 58 to 9 and improved Looker reporting logic.
Oct 2023 - Dec 2024
Associate Brand Manager
AstraZeneca
Owned omnichannel brand activity for healthcare audiences, coordinating media, content and suppliers. Managed a programme above PLN 250k and reduced creative production costs by 63% through a more efficient operating model.
Oct 2021 - Sep 2023
Paid Media & Digital Campaign Specialist
EssenceMediacom / Starcom Performics
Hands-on Google Ads, Meta and programmatic delivery: campaign setup, optimisation, KPI and budget control, media plans and client recommendations across agency accounts.
Portfolio
MetaOps - Meta Ads dla WITTCHEN (7 rynkow CEE)
Operacyjna kontrola Meta Ads na 7 rynkach CEE (DE, UA, CZ, HU, AT, RO, SK). Wdrozylem ramy decyzyjne ERS/ROAS: Meta ERS spadlo z 10,6 (III) do 7,8 (IV), a na poczatku maja 6-7. Skalowanie UA, pauza slabych kampanii (CZ/BA, DE), codzienny QA.
Optymalizacja rynku CZ - poprawa efektywnosci Meta
Optymalizacja kampanii Meta Ads na rynku CZ. Audyt struktury kont, pauzowanie slabych kampanii, korekta placementow i feedow produktowych oraz porzadkowanie UTM. Efekt: poprawa ROAS/ERS i ograniczenie marnowania budzetu przy stabilnej skali.
Rynek UA jako silnik wzrostu - skalowanie Meta Ads
Rynek UA jako glowny silnik wzrostu w portfelu CEE. Identyfikacja najlepiej rokujacych kampanii, agresywne skalowanie budzetow przy utrzymaniu efektywnosci (ROAS/ERS) i codzienny QA. Efekt: UA glownym driverem wynikow przy stabilnym CPA.