Jan Drozd
From: Poland
Location: Kraków
On Useme since 12 October 2026
About me
WordPress & WooCommerce | Business Apps & API Integrations
I build websites, improve online stores and integrate payments and external APIs. I also develop CRM systems and applications with React, Angular and Python. 15+ years of commercial experience.
How I can help: - implementing an existing website design; - WordPress/WooCommerce fixes and development; - payment, subscription and API integrations; - business applications, CRM systems and AI tools.
Selected work: Teatr Ludowy: WordPress and the Biletyna ticketing API, with Studio Otwarte. Paweł Pagacz Consulting: CRM, subscriptions and PayU. Mały Format PR: a WordPress/React CRM. At Cledar: team contributions to financial applications and AI add-ins for Word and Excel.
You work directly with me. We agree on scope, price and delivery, using milestones for larger projects. Send your design or describe the problem and I will suggest a practical first step.
Remote from Poland | Polish and English C1
Categories
CV / Résumé
Feb 2021 - Now
Senior Full Stack Engineer
Cledar Sp. z o.o.
Rozwój platform danych finansowych, aplikacji biznesowych i BI. React/Angular, Python/FastAPI, Node.js i AWS. Backend, aplikacje mobilne, integracje LLM, autoryzacja i komunikacja real-time. Odpowiedzialność od projektu po testy i wdrożenie.
Aug 2020 - Feb 2021
Full Stack Developer
BerryLife
Aplikacje Angular i Ionic z backendem Firebase. TypeScript, RxJS, Firebase Authentication, Firestore i Cloud Functions.
Mar 2019 - Jul 2020
Frontend Developer
Aktan Innovation
Rozwój produktów Angular, Ionic i Firebase w międzynarodowym zespole. Utrzymanie aplikacji AngularJS i wsparcie migracji do nowoczesnej architektury.
Mar 2013 - Mar 2019
Full Stack Developer
Freelance — klienci niezależni
Kompletne produkty webowe i hybrydowe aplikacje mobilne: analiza wymagań, decyzje UX, frontend, backend, wdrożenie i stała obsługa. Bezpośrednia współpraca z klientami i odpowiedzialność za decyzje techniczne.
Jan 2006 - Dec 2013
Full Stack Developer / Motion Designer
Studio Otwarte
Interaktywne serwisy i komercyjne projekty cyfrowe. Programowanie, projektowanie interfejsów i współpraca z klientami. PHP/MySQL, platformy CMS, techniczne SEO i optymalizacja wydajności frontendu.
Portfolio
WordPress website built from scratch, order handling and REST API integration with Biletyna ticketing. My role: website, integration and accessibility work. With Studio Otwarte; ticketing system supplied by Biletyna.
Paweł Pagacz Consulting | CRM i płatności PayU
CRM connecting customers, subscriptions, newsletters and products with WooCommerce and PayU payments. My role: implementing the system linking customer management, sales and subscription management.
Cledar | Finanse firmy — React i Python
Business finance application. My role: React frontend, Python/PostgreSQL backend and API integration, with WebSocket communication for invoices. Full-stack development as part of the Cledar team.
WordPress website for the Jewish Culture Festival in Kraków. My role: technical implementation and ongoing website development. Delivered in collaboration with Studio Otwarte.
Cledar | Kamery i live streaming — web/mobile
Web and mobile apps for cameras and live video. My role: Angular/Ionic frontend, NgRx and WebSockets, integrated with a .NET API built by the backend team. Delivered within the Cledar team.
WordPress website for a Data & AI company. My role: website implementation, new pages and ongoing maintenance. Delivered in collaboration with Studio Otwarte.
Mały Format PR | CRM — WordPress i React
CRM for customers, products and purchases. My role: implementing the system with WordPress and React, connecting customer management with the product offering and purchase workflow.
Cledar | Asystent AI do Worda i Excela
AI add-ins for Word and Excel. React interface and LangChain/LangGraph agents analysing documents and proposing content and next steps. My role: contributing to development within the Cledar team.
WordPress implementation and development: product presentation, CMS extensions and ongoing maintenance. My role: programming and integration work. Delivered in collaboration with Studio Otwarte.
Personal Italian learning app for A1/A2: vocabulary, flashcards, quizzes, grammar, reading and lesson materials. My role: building the web app. A working version is available via the project link.