Hiroki Takeuchi founded GoCardless, a pioneering British fintech company founded in 2011. Takeuchi first got involved in tech startups after a friendship at university bagged him an internship at Y Combinator, which had little profile in the UK at the time. He has since said goodbye to his cofounders, overcome a life-changing bike accident, and raised $122 million for his company. Now Takeuchi is navigating the unknowns of Brexit in a fiercely competitive environment for tech talent.