Available 20 h / month

Websites and applications that work. For businesses and individuals.

I'm a PHP and React developer with over 12 years of experience. I help with larger projects, smaller websites, and practical AI implementation.

Discuss your projectPortfolio ↓
Man with short brown hair and light facial hair wearing a pale green T-shirt, facing the camera with a slight smile.
PHP React AI integration

From a single website to a long-term partnership

How I can help
01

Ongoing project development

Have a system in production and need help? Maintenance, new features, fixes, and modernization of existing PHP or React code.

02

Custom websites

From a simple website to one with a custom content management system. I can also help you choose hosting, register a domain, set up email, and launch your website.

03

Consulting

A second opinion on architecture, code reviews, technology choices, or taking over an existing website.

04

AI in your product

Integrating language models into applications and automating routine processes where it makes sense.

Selected work

All projects →
Weather station dashboard with charts for wind, temperature, humidity, pressure and energy. Current readings include wind at 1.2 m/s, temperature at 17.5°C, humidity at 73% and pressure at 1015.0 hPa.
Existing system development · JavaScript Taking over and developing a weather application
Custom website for volunteer firefightersCustom website · Custom CMS
Phone screen showing a 1-on-1 meeting preparation page for Priya Patel, with a summary, follow-ups, questions to ask, and a “Finished — take notes” button.
LeadReady – mobile appOwn product · Mobile app
„The client particularly valued our adherence to agreed estimates, speed of delivery, and open communication. Even when complications arose, we always discussed them promptly and agreed on the next steps.“ — Client feedback summary
Anonymized · loosely paraphrased
About me

I started building websites when I was twelve. I studied computer science at Masaryk University, and since 2018 I have been programming in PHP full-time as part of a large team of experienced developers. I also work as a lead and mentor, helping junior colleagues grow.

More about my experience →
12+years of experience
Leadand mentor to junior developers
MUNIcomputer science, Brno
2018Full-time developer
One-on-one AI course

From idea to your own app with AI

4 online lessons of 90 minutes each. You'll build your first small app with AI, understand the basics of development, and learn how to check the results.

Explore the course →
Blog
Two days, five people, and AI. What a hackathon in London showed me about software development1 May 2026

Have a project?
Let's discuss it.

I'll get back to you within two business days.

jan@lastuvka.devLinkedIn