Barney’s interest in cryptography and cryptocurrencies led him to mine bitcoin on a small scale in its early days, and invest in Ethereum pre-sale. He has advised top-tier banks and start-ups on blockchain strategy, applications of distributed ledger technology, and token management. He also designed multiple releases of the trade matching engine for the London Stock Exchange, used for millions of trades daily.

Barney also co-founded Pik, a payment platform for online content, supported by the Google DNI Fund. Pik APIs are used by 1m-plus unique users per month.

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