I build fast, clean, and responsive websites and web applications with modern technologies.
A little background on who I am
I'm a passionate web developer with 3+ years of experience building modern web applications. I enjoy turning complex problems into simple, beautiful, and intuitive solutions.
I studied at Stredná odborná škola elektrotechnická, Matejovce, where I gained a foundation in electrical engineering and got my first taste of programming. Most of my coding knowledge, however, I built up on my own — self-taught through practice, projects, and a lot of curiosity.
Most of my recent projects are real websites I built from scratch for local Slovak companies (electrical and plumbing businesses). I handle design, coding, and deployment myself.
When I'm not coding, you'll find me exploring new technologies, contributing to open-source projects, or diving into UI/UX design concepts.
Where I've been and what I've done
What I can build for you
Technologies I work with
Some of my recent work
A full Duolingo-style gamified learning platform I built for students of my electrical engineering school (SOŠ elektrotechnická, Matejovce) — to make the subject actually fun to study. Covers Ohm's Law, wiring, DC motors, safety rules, tools, and more. Features XP leveling, daily streaks, achievement badges, a free/premium tier, and a personalised onboarding experience — all in Slovak.
Built from scratch for a local electrical installation company. Presents their services — electrical installations, smart home solutions, photovoltaic systems, and revisions — in a clean and professional way. Includes responsive design, contact form with validation, and clear call-to-actions.
Complete website for a plumbing and heating company. Covers water/gas installations, underfloor heating, solar panels, heat pumps, and mandatory revisions. Designed to build trust with clear service descriptions and a professional look.
My own freelance service website offering honest, no-nonsense web development for small businesses and tradesmen in Slovakia — no templates, no unnecessary costs. Explains my approach and showcases real client work (stech.sk, opuss.sk).
Website for a pedicure salon — professional care, hygiene, and a booking system with time slot selection. Clean and calm design.
🔗 jozefneupauer.github.io/pedikuraReact app for tracking electrical installation materials on a construction site — categories, quantities, search, CSV export, and local storage persistence.
🔗 jozefneupauer.github.io/SiteMaterialTrackerInteractive reference guide for learning core Java concepts — Strings, Arrays, Loops, Math, OOP, and Collections. Each card explains a concept in plain English, shows real code, and lets you experiment with live inputs that update results instantly.
🔗 jozefneupauer.github.io/Java-Functions-Interactive-Beginner-GuideWhat people I've worked with say
“Jozef built our website from scratch and we couldn’t be happier. Clean design, loads fast, works perfectly on mobile. He handled everything — we didn’t have to deal with any technical stuff.”
“Very professional and straightforward to work with. Got exactly what we needed — a site that presents our services clearly and looks great. Would recommend him without hesitation.”
“Fast delivery, fair price, and a result that looked way better than expected. He knew exactly what a small business needs — no bloat, just a clean and working website.”
My real opinion — no filter
Using AI is not cheating.
It’s resourcefulness.
From GitHub Copilot to custom LLM pipelines — serious IT companies use AI every single day. If the industry uses it, why wouldn’t I?
As a self-taught developer, AI helped me grow faster than any course could. It lets me explore ideas, debug faster, and write better code.
What you’re actually paying for is quality, price, and a working result — not a specific process. The output is what matters, not how it was made.
The sites I build work, look professional, load fast, and deliver real value for real businesses. That’s what I charge for — and it’s worth it.
I understand HTML, CSS and JavaScript properly — which means I can work with web builders, hand-code from scratch, or anything in between. I pick the right tool for each project. The craft is still there. The skill is still there. The result is delivered faster, at the same quality, for a fair price.
I’m self-taught, I use AI daily, and I’m proud of both. When you hire me, you’re paying for the result — not the process. The quality is the same. The price is fair. The delivery is faster.
Common things clients ask
Open to freelance projects & full-time roles
Whether it's a business website, a web app, or just an idea on paper — I'd love to hear about it. Drop me a message and I'll reply within 24 hours.
Send me an email⚡ Average reply time: under 24 hours
Freelance work is great, but I’d genuinely love to be part of a larger project — something with a real team, real challenges, and people I can learn from and build with. If you’re working on something interesting and think I could contribute, reach out. I’m easy to work with and always up for something new.