E-commerce entrepreneur & CRO operator — Poland
I don't just advise online stores. I build, own and run them.
Through Olszewski Digital I own and run my own e-commerce businesses. I turn traffic into profit — every decision, from ad spend to checkout, is mine, and so is the number at the end of it.
Behind Sana Polska and Blendtec Polska. Before that, a decade as Managing Director in corporate banking — Citi, ING, nationwide sales channels, 1,800+ partners, portfolio growth of +308%. 40,000+ customers acquired online since 2023.
E-commerce entrepreneur & CRO operator — Poland
I don't just advise online stores. I build, own and run them.
Through Olszewski Digital I own and run my own e-commerce businesses. I turn traffic into profit — every decision, from ad spend to checkout, is mine, and so is the number at the end of it.
Behind Sana Polska and Blendtec Polska. Before that, a decade as Managing Director in corporate banking — Citi, ING, nationwide sales channels, 1,800+ partners, portfolio growth of +308%. 40,000+ customers acquired online since 2023.
Approach
How I work — four things I never hand off.
Own the funnel
Acquisition, conversion, retention — one person accountable for the whole journey and the revenue at the end of it. No gaps between the ad and the checkout.
Decide with data
Hotjar and GA4 — session recordings, heatmaps, funnel analysis, on-site UX audits. Behaviour becomes conversion rate optimization, not opinions.
Traffic into profit
Rankings and clicks are vanity until they convert. I optimize for the number that pays the bills: net profit, not visits.
Speed as a feature
Fast stores sell more. A slow page loses roughly one in four shoppers before it even appears — so I treat load time and Core Web Vitals as conversion levers, not a developer's afterthought.
Selected work
Stores I own and run
sanapolska.com
Owner & operator
Owner, operator and official Polish distributor of the brand. Built the brand and e-commerce business from the ground up and lead it end-to-end: strategy, website, content, acquisition, conversion, retention and online sales.
blendtecpolska.com
Founder & e-commerce lead
Built the online store and its e-commerce operation from the ground up; today I continue to lead that operation, including online sales, content, acquisition, conversion and growth.
Content platform — ~240,000 monthly visitors
2012–2018 · earlier work
My route out of banking and into digital. Co-built and scaled a content platform from zero, learned SEO, SEM and audience acquisition by doing, and co-authored a book that reached national bestseller lists (Helion).
Selected commercial impact
0+
customers acquired since 2023
0+
monthly organic visitors at peak
0+
leads generated per month at peak
Playbook
What ties it all together isn't a channel or a tool. It's why people buy.
Most online stores have a traffic problem they don't know about: they already have enough visitors — they just can't convert them. I start on the other end. Not with the ads. With the money. Where exactly does the customer hesitate? What loads too slowly, reads as unclear, or feels untrustworthy between the first click and the paid order? That's where profit leaks. That's where I work first.
The tools I use are ordinary — Google Ads, SEO/SEM, Hotjar, GA4, WooCommerce. What isn't ordinary is refusing to treat any of them as the goal. Every tool, every campaign, every UX change serves one end: a better commercial decision that shows up in net profit, not in a dashboard nobody reads.
The message they see. The trust they build. The friction that stops them. The hard gap between vanity traffic and real revenue.
Before e-commerce, I spent a decade in corporate banking — Managing Director at Citi, nationwide sales channels, 1,800+ distribution partners. That's where I learned that sales at scale is a system, not a hack. I bring that discipline to online stores that most people treat as a side project.
Background
Where the experience was actually earned.
From banking boardrooms to building online stores from zero — every role taught me something different about how sales really works.
- 2018 — now
- Olszewski DigitalBuilding, owning and running e-commerce businesses. Full-funnel ownership across strategy, acquisition, CRO, UX and retention.
- Owner
- 2012 — 2018
- Independent digital growthThe transition from banking into digital — building, monetizing and scaling an independent content platform, and co-authoring a bestselling book.
- Co-founder
- 2007 — 2014
- Citi & INGManaging Director at Citi. Nationwide sales channels, 1,800+ partners, portfolio growth of +308%.
- Banking leadership
- 2004 — 2009
- SGH Warsaw School of Economics
- Master's degree
Contact
I take on only the projects that genuinely interest me.
If you've got a complex e-commerce puzzle worth solving, my inbox is open.