I'm Julian Lewandowski
Frontend Developer
Check out my featured projects
Turning complex problems into simple design
Frontend is my craft. I've loved building things ever since I can remember; code lets me turn ideas into tangible - albeit digital - products. My favourite moment is when a user clicks and says: “wow!”.
After hours
Health-focused traveller planning to buy a camper. Husband and dad to a two-year-old girl; lifelong dream: a family road-trip across the US - first stop: Miami.
My “why”
I'm excited by tech that truly elevates day-to-day life. MedTech and EdTech projects are my sweet spot - code that heals or teaches at scale.
Education and practical experience
Learning is a daily habit - from soldering circuits back in tech school, through my Computer Science degree, to countless online courses, conferences and hackathons. Every fresh concept gets battle-tested the very same day, plugged into client work or personal prototypes. This tight theory → code → feedback loop turns knowledge into lasting skills and tangible business value.
My education
Computer Science
University "Vizja" in Warsaw, Poland
Bachelor's degree in Computer Science with a focus on software engineering, web & mobile development.
Electronics Technician Diploma
School of Electronics & IT No. 8, Sosnowiec, Poland
Technical diploma in Electronics with a focus on automation and low current systems.
Work experience
React Frontend Developer (Next.js)
mama-dietetyk.pl • Sosnowiec, Poland (remote)
FreelanceDeveloping a pediatric nutritionist platform with Next.js, TypeScript, Tailwind CSS, Supabase, and Sanity CMS. Implementing dynamic animations, A/B testing, and Core Web Vitals optimization.
WordPress Developer (React.js)
CUBE WALLS Sp. z o.o. • Cracow, Poland (remote)
FreelanceCreated responsive WordPress websites with custom themes and React Gutenberg blocks. Integrated REST APIs, Google Apps Script, Instagram API, and Leaflet for interactive maps.
WordPress Developer (React.js)
Max Lukas Team • Warsaw, Poland (remote)
FreelanceBuilt WordPress + WooCommerce store with custom React blocks and world map slider. Automated order flow using Baselinker API, InPost shipping, and Przelewy24 payments.
React Frontend Developer (Next.js)
Canary Jump • Tenerife, Spain (remote)
FreelanceDeveloped POS, park management system and customer web app using React, Material UI, Redux, BigCalendar, and ApexCharts. Delivered full frontend implementation in Scrum team.
React Native Developer (Expo)
CUBE WALLS SP. z o.o. • Kraków, Poland (remote)
FreelanceDeveloped React Native kiosk-mode apps with Expo, Zustand, i18next, React Navigation, Google Apps Script. Designed responsive UI with toast notifications.
React Frontend Developer (Next.js)
MartiBikini • Warsaw, Poland (remote)
FreelanceCreated e-commerce platform with Next.js and Redux, migrating from WooCommerce to Strapi CMS. Integrated secure Przelewy24 payments and third-party marketing APIs.
Senior IT Support Specialist
Billennium S.A. • Warsaw, Poland (remote)
Provided technical support for 100+ users globally, executed large-scale data migration (250,000+ files). Built low-code apps on Onit platform for business process optimization.
Senior IT Support Specialist
IT4KAN Sp. z o.o. • Katowice, Poland
Provided technical support for RIS/PACS systems in medical environments. Trained 50+ radiologists and improved diagnostic software workflows for enhanced patient care.
Want to know more about me, tell me about your project or just to say hello? Drop me a line and I'll get back as soon as possible.
Location
Sosnowiec, Poland
Phone
+48 507 273 855Email
hire@julianlewandowski.plDesigned & developed with ❤️ Julian Lewandowski©