In this week's podcast QCon chair Wesley Reisz talks to Matt Ranney who is the Chief Systems Architect at Uber, where he's helping build and scale everything he can.

Why listen to this podcast:

- Expanding a company and team at this rate is genuinely hard. Lots of mistakes have been made along the way.

- Microservices allow companies to grow rapidly but have a cost in terms of aggregate velocity.

- Uber is gradually moving its marketplace development from Node.js to Go and Java. Java is used for the map services.

- Aggressive failure testing is used extensively in Uber.

- Some early design choices - like using JSON over HTTP - make formal verification basically impossible.

Notes and links can be found on InfoQ: http://bit.ly/1TH8app

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Attend Matt Ranney's session at QCon New York 2016, Jun 13-17: http://bit.ly/1TH75ht