Dev since 2002 or so. Full-time since 2006. All in on Typescript/Javascript & React. Before that it was Scala, Java, Actionscript/Flash, C#/.NET, PHP and so forth. Full-stack developer dinosaur. Likes UX stuff and some marketing things (videos, websites, adwords). Founded Makers’ Den together with Korneliusz in Dec 2017.
Seasoned software engineer. Passionate about cloud architecture, React development and functional programming**.** Has a wide array of tech in his background. Scala, Haskell, C#/.NET etc. Founded Makers’ Den together with Kalle in Dec 2017
Partner. Senior of 10+ years with a lot of various experience under his belt. Mateusz also takes the lead in the hiring process.
Joined us in 2021 as a hotshot rebel React developer. Gained our respect and now he’s leading projects with a vengeance.
Joined us in 2022. Full stack react dev. Avid cyclist that loves to spend her winters in Spain
Joined us in 2022. Full stack React dev.
Joined us in 2022. Junior React dev.
Joined us in 2022. Senior React dev.
Joined us in 2025. Full-Stack developer
Joined us in 2025. Full-Stack developer
Joined in 2026, experienced Android Developer, retail investor & markets enthusiast. Home barista, sportsman & football fanatic.
Joined in 2026, iOS Developer. Passionate about the stock market and investing. In his free time, he boxes and cycles
Join on 2026. An iOS developer with more than 10 years of experience building high-quality mobile applications and solving complex technical challenges. Outside of work, passionate about off-road motorcycle touring and DIY projects, which reflect his love for adventure, hands-on problem-solving, and exploring new paths.
Joined in 2026, A programming-language-agnostic Senior Software Engineer with 8 years under his belt, specializing in JVM languages (Java and Kotlin). Ex-Atlassian, AI enthusiast, and part of the team since 2026
Joined in 2026 Sebastian is a full-stack engineer with 8+ years of experience, focused on React and TypeScript and equally at home with Node on the backend. An open-source author who builds and self-hosts his own tools for fun — and whose free time is mostly run by his corgi.
Joined in 2026 Tomek is an Android developer with 12+ years of experience delivering well crafted code. Enjoyer of bikes, books and mountain vistas.
We do not mention all of them, as some are working with us after-hours on top of their day job. Our friendlies aren’t always working with us, only when we happen to need it and they happen to be free, but they usually hang out with us on our Slack.