Erik Hellman

Erik Hellman

Freelance software engineer

Stockholm, Sweden


With more than 25 years of writing software, and 16 working on Android in various forms, Erik has plenty of experience to share. He lives and works as a freelanced software developer from his home in Stockholm, Sweden. When he's not working he is unsuccessfully trying to herd his two cats or trying to figure out how to maintain his house.

Area of Expertise

  • Information & Communications Technology


  • Android
  • Kotlin
  • java
  • Bluetooth Technology
  • NFC
  • UWB
  • Android Software Development

WebRTC for Android Developers

WebRTC has existed natively in the browser for many years and it is also the fundamental technology for all type of real-time communication happening on the Internet today. But support for WebRTC for mobile developers have been very limited. You either have to rely on outdated libraries, expensive third-party services, or having to build a lot of solution from scratch yourself. You also needed a fairly intimate understanding of how WebRTC works, both on the client-side as well as in a backend.

In this session we will look at how WebRTC works, what you need to get started, what third-party solutions are available, and how to build your own.

This session is useful for anyone interested in real-time communication for Android apps, from video conferencing to audio-only group chat solutions.

That's not a phone...

It is now 16 years since Android was released to the public, and since then it has become the most used operating system for smartphones. But Android has also been used outside the smartphone area, and often without any involvement from Google and on devices it was not originally designed for.

Let's look at some of the surprising uses of Android throughout its history and the challenges these had. We will end with a look into the future and try to predict what kind new types of devices we can expect Android running on, and what that means for you as an Android developer.

Wireless protocols for the next generation IoT devices

In an era where mobile apps and IoT devices are becoming increasingly interconnected, understanding the nuances of modern wireless protocols is crucial for software developers. This technical talk aims to delve into the latest advancements and practical applications of wireless communication technologies, including Bluetooth Low Energy (BLE), WiFi, Ultra-Wideband (UWB), Thread, LoRaWAN, and more. Learn when and how to use each protocol and their pros and cons.

droidcon London 2023 Sessionize Event

October 2023 London, United Kingdom

droidcon Berlin 2021 Sessionize Event

October 2021 Berlin, Germany

Erik Hellman

Freelance software engineer

Stockholm, Sweden


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