Portfolio — case studies
My full career path from HAJIME Studio (2009) through corporate work to WooCommerce builds. Click a tile to read the full case study.
System rezerwacji dla No Limit Studio
A custom booking plugin for No Limit Studio (Palatine, IL): flexible packages, smart capacity locking, a coupon engine and Square payments that eliminate no-shows.
Odzyskiwanie nieopłaconych zamówień WooCommerce
A gateway-independent payment reminder module: it detects unpaid orders and recovers revenue with automatic reminders and a “Pay for order” button.
Moduł stabilnego utrzymywania sesji logowania
A module that keeps login sessions stable across unusual browsers and cache setups — while fully respecting WordPress security mechanisms.
Headless CMS + automatyzacja, która zarabia
Instead of a subscription for “peace of mind”: a headless architecture with the frontend decoupled from the backend and a module that actually earns — rescuing abandoned carts and failed payments.
Ratunek podczas ataku DDoS (Przelewy24 cURL error 6)
During a DDoS attack, Przelewy24 payments failed with cURL error 6. A hotfix forcing IPv4 in cURL bypassed the hosting’s problematic DNS nodes and restored payments.
Kreator Wizualny MasterBeing
For a furniture store: the marketing team edits the banner, “Sale” categories, CTAs and promo content in ~3 minutes — with no developer. A lightweight alternative to heavy builders.
DEKRA Polska
Full-time role in an international certification company. Corporate site development and maintenance, sales campaigns and lead forms.
Credit Suisse · Avenga
Migration of the Credit Suisse internal portal (Private Banking) to a new Adobe Experience Manager version. International team.
Credit Suisse · intive
Digital creative services for Credit Suisse: OneCMS, CQ5, SharePoint, advertising graphics, ticket handling and internal support.
Nest Bank · Unity Group
UX/UI projects for Nest Bank and support of e-banking rollouts at Unity Group (Kentico, Strapi, Figma).
OnniBus.com & R-kioski
International rollouts for Finnish clients (OnniBus.com, R-kioski). Kentico, Strapi, Figma, documentation and Customer Care training.
Multimedia Polska
Editorial and design support for the Multimedia Polska S.A. portal at Unity Group: content management and sales campaigns.
Archicom
UX/UI for residential developer Archicom: flat configurator, investment pages and sales forms.
PHM Polish Healthcare
Rebranding of the PHM Group (Wrocław): visual identity, websites (PSD → HTML/CSS, jQuery, PHP), social media and marketing copy.
Incom Group S.A.
Online store management at Incom Group, cooperation with 12 product managers and daily e-commerce operations.
HAJIME Studio
My first four years in the industry: graphic design, visual identities and websites for SMBs in Wrocław.
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