Minimed is a portable division of Medtronic, their most famous product being an insulin pump. It's also sometimes called "artificial liver", since it's a device that you plug in (literally) into your soft tissues, which delivers insulin based on schedule and algorithms.

I've been working on mobile application connecting to the said pump for iOS, as a part of ~10 developer team. It was a full fledged industrial application, which meant rigorous testing (separate QA team and a whole bunch of tests: automated UI, unit & integration), writing supporting documentation, security audits and such.

I've started as a native iOS software engineer, transitioning towards being a team lead of around 10 people, and, finally, transitioning towards cross-platform R&D (Futter).

Project required constant communication between 4 fully staffed teams; mobile application was the "connecting piece", therefore initiative for change usually came from us.

My responsibilities were:

• Core BLE interactions runtime architecture & implementation
• Firmware-over-the-air implementation, sending binary images over BLE using custom TCP-like protocol
• Bluetooth communication debugging using Frontline BLE sniffer
• Separating the application codebase into an SDK for a family of medical devices
• Leading the iOS team at the later stages