Grzegorz Kaczmarek
From: Poland
Location: Wrocław
On Useme since 21 May 2026
About me
Hello! 👋 I’m a full-stack developer and founder of GKD — a studio creating modern websites, web applications, and digital solutions for businesses, startups, and personal brands.
I specialize in: • websites and landing pages • web applications and MVPs • React / Next.js / TypeScript • integrations and automations • performance optimization and UX • development and modernization of existing projects
Beyond development itself, I help clients choose the right technology stack and plan cost-effective, scalable solutions that can grow alongside their business.
Technologies: Next.js, React, TypeScript, Node.js, AWS, Docker, API integrations, Headless CMS, AI-assisted development.
I focus on clear communication, fast iterations, and a practical approach to technology 🚀
Categories
CV / Résumé
Jan 2023 - Now
Software Engineer
Opera Software
I develop web applications, browser extensions, and work on test automation, build process automation, software testing, CI/CD pipelines, and the release process of production-ready software to end users.
Aug 2021 - Dec 2022
QA engineer
Opera Software
I was responsible for software testing, preparing test plans, and writing automated tests for applications. I supervised the process of delivering high-quality software to end users.
Portfolio
A focused Framer website for Piotr Parzuchowski, a Poznań-based personal trainer who helps people with sedentary lifestyles move more and feel better. Built around free consultations, 30-minute check-ins, and 1:1 training as the conversion path.