Damian Karolewski | OK Agency
From: Poland
Location: Warszawa
On Useme since 7 October 2026
About me
I design and build focused websites, landing pages, dashboards and practical automations. The aim is a clear experience that works, from the first screen to the final handover.
I can help you present an offer online, build an operational dashboard or reduce repetitive data and document work. Services include visual design and frontend implementation, interactive tools, and Python workflows for data validation and PDF generation.
We agree on the goal, scope, price, deadline and acceptance checks before work begins. I test the agreed functions and desktop/mobile views, then hand over the files with instructions.
My portfolio shows self-initiated demonstrations: a boutique hotel website, an operations dashboard, a project estimate tool and CSV/PDF workflows. These use sample data and are not client projects or customer results.
Remote collaboration in English and Polish. Tell me what you want to achieve and I will suggest a clear scope. Damian Karolewski | OK Agency
Portfolio
Kontrola katalogu CSV / CSV quality demo
Technical demo with 1,000 synthetic records: 30 logged changes, 25 rows flagged for review, row count and order preserved. Python, a change log and an exception list. A second run produced identical output.
Własna koncepcja strony hotelu butikowego: projekt wizualny, prezentacja pokoi i działający frontend. Sprawdzone widoki desktop/mobile. Przykładowa marka, bez wyników klienta. Self-initiated hospitality website concept, not a client project.
Własny kalkulator zakresu i wyceny projektu: parametry, przeliczenie i eksport podsumowania TXT. Sprawdzone działanie i widok mobilny. Self-initiated estimate tool demo with editable assumptions; no client results or guaranteed pricing.
Generator kart produktów PDF / PDF cards
Technical demo: generate 20 product cards and a PDF batch summary from one CSV. Two layouts, required-field validation and content checks. The displayed card uses synthetic data. Built in Python; no client data or client case study.
Koncepcja interaktywnego panelu operacyjnego: widok zadań, filtrowanie i czytelna hierarchia informacji. Przykładowe dane, sprawdzony widok mobilny. Self-initiated interactive dashboard demo; synthetic data, not a client project.