Built with postgres+postGIS and node.js. Around 400Gb dataset, maps generate in around a second.
A lot of time spent on processing data quickly, and on data formats.
Also did a related system that looks up any address in the UK via postcode or keyword, with sub-second response.
In progress, a blockchain simulator in node.js, to test out some scaling ideas...
Also spent time convincing people to teach multiplication in a better way : quantblog.wordpress.com & gridmaths.com ... and about why Bitcoin does need a larger block.
Looking to more consulting work in 2018 working on blockchain tech.
