Sebastian Witalec

Developer Advocate, Telerik / Progress

Sebastian Witalec is a Developer Advocate for Telerik with over 8 years of experience in software engineering and architecture.

Sebastian has passion for all types of technologies. However in the last few years his focus shifted towards cross platform Mobile development where he gained experience with Apache Cordova and NativeScript.

He is always happy to learn about the new stuff and to pass the knowledge as far as his voice (or the wire) can take him. Sebastian is based in London, UK actively working with various Dev communities in the area. When not acting techie he is a massive football fan/player (probably bigger at heart than skills).

My Sessions

NativeScript is a free and open-source runtime for building native apps using familiar tools—Angular, JavaScript/TypeScript, CSS, and npm. NativeScript renders truly native user interfaces—giving your users the best performance and UX their devices can offer. In this workshop you’ll learn what NativeScript is, how it works, and how to use the framework to build iOS […]


Taking over the world is not an easy challenge. It requires good strategy and a powerful army. What better soldiers than a mass of obedient robots? You just need a way to issue them instruction via their BLE interface. But should you choose to build a web app or a native mobile app? With Angular […]