Hi, I'm
Milan Douša
Marketing Data & Automation Specialist
SEM/PPC, data, and automation with a touch of AI.
About
I started eight years ago as a PPC specialist, went through automation with scripts (by hand back then) and team leadership, and today I connect PPC, data, and automation with the help of AI.
Right now I'm responsible for automation — with a lot of help from AI — and for managing data feeds for Google Merchant Center, Meta, RTB House, and other platforms. But I still spend plenty of time directly in Google Ads — A/B testing, for example.
B.Sc. Business Economics and Management, University of West Bohemia in Pilsen
- Czech — native
- English — professional
- German — basic
Skills
SEM / PPC
Data & Analytics
Automation
AI Tools
Experience
Marketing Data & Automation Specialist
10/2025 — presentHeureka Group
Marketing data and automation across the Heureka Group.
Group SEM Lead (PPC)
07/2024 — 09/2025Heureka Group
Leading SEM activities across Heureka Group countries, strategy coordination, and automation.
SEM Manager (PPC)
05/2023 — 06/2024Heureka Group
Leading a small team managing Google Ads and Microsoft Advertising campaigns in the Czech Republic and Slovakia. Automation of campaign management and reporting via Dotidot (PPC Bee), Google Ads Scripts, Looker Studio, Keboola, and BigQuery. Cooperation with other countries in the Heureka Group.
Performance Marketing Specialist
05/2021 — 04/2023Heureka Group
Complete management of performance campaigns in Google Ads and Microsoft Advertising (Bing Ads). Automation of campaign management and reporting via PPC Bee, Google Ads Scripts, Google Data Studio, Keboola, and BigQuery. Cooperation with other countries in the Heureka Group (Slovenia, Croatia).
Marketing Automation Specialist
09/2019 — 04/2021Internet Mall
Creating XML and CSV feeds for comparison shopping engines (Heureka, Zbozi), Google Ads, ROI Hunter, PPC Bee, and other systems. Writing Google Ads and Python scripts for marketing automation (reporting, bidding, alerts). PPC campaign management (Seznam Sklik, Google Ads, YouTube).
Performance Marketing Specialist
12/2017 — 08/2019Internet Mall
Performance marketing, PPC campaign management, bidding, and reporting for e-commerce.
Case Studies
AI Creatives vs. Classic Graphics
A/B/n test in Google Display Network with over 8,000 clicks over 13 days. I compared an original banner against four AI-generated variants created with a custom tool built in Google AI Studio.
Result
The AI-generated hedgehog photo won — CTR 1.94% vs. control group 1.48% (95% confidence level).
Google Sheets + GPT API: Automation for the Whole Team
I built a universal Google Apps Script connecting Google Sheets with the OpenAI API. Any team member can work with AI on large datasets without coding skills — directly in Google Sheets. The script was published and shared with the community.
Result
Publicly shared tool. Use cases: ad copy rewriting, query categorisation, synonym discovery, product title optimisation.
AI Product Title Optimisation in Google Shopping
Experiment optimising ~3,500 product titles in the Small Household Appliances category using GPT-4o and Google Apps Script. AI automatically added category and key attributes to product names. Used an A/B cross-over test with Google's FeedX tool.
Result
No measurable effect on clicks, CTR, revenue, or ROAS. An honest result worth sharing.
Contact
Let's connect
I'm open to new opportunities and collaborations. Reach out on LinkedIn or via email.