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Discussion on: I'm Junade Ali, author of multiple software books and working on a PhD in theoretical computer science. Ask me anything!

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Junade Ali

So I spent some of my career working for a company which produces sensors that power things like Smart Motorways and pretty much every traffic signal in London (and most cities), amongst other technologies. You'll pass dozens of these sensors when driving around many parts of the world without realising it (whether it's counting you on and off a motorway for analytics purposes or the sensors which tell you the time until the next junction which use Bluetooth MAC addresses and Automatic Numberplate Recognition).

One of the things I was most proud of working on was some LED roadstuds ("LED cats eyes"), which would cut road accidents by up to 70% - most people wouldn't even realise they were installed on the roads they were driving down, but it would change their behaviour.

I worked on the software both on the sensors themselves and also the managed services that allows different bits of roadside equipment to be connected together (e.g. a SaaS service to configure how speed limit signs are controlled from accident detection systems). I even got to spend some time working in the Arctic for sensor testing!