Rhian Lewis is a software engineer who is the co-developer of altcoin portfolio tracker CountMyCrypto. She is also the co-host of London Bitcoin Women, which she founded with a friend in 2014. She has a BSc in Economics from UCL and is a former digital journalist at The Times. She is a regular conference speaker and educator on blockchain technology, cryptocurrency and cryptoassets, and writes about blockchain technology at https://medium.com/@rhian_is. She also runs training courses aimed at test engineers on blockchain projects.