Silicon Valley Bank's collapse this time last year left a gap in the market many are trying to take advantage of. One relative newcomer on the scene is Mercury, a fintech that provides "startup banking" and other financial infrastructure, and it's looking to grow. The San Francisco based fintech has recently hired a new "head of engineering, expansion" with a high pedigree in fintech.David Bai joins Mercury from crypto giant Opensea, where he was a director of engineering for its core product team.