Slash, an online banking platform for the hustle economy, emerged from stealth today with $19 million in seed and Series A funding. The seed and Series A rounds were led by NEA with additional participation from Menlo Ventures, Connect Ventures, Y Combinator, Soma Capital, Global Founders Capital, with participation from angel investors William Hockey, the founder of Plaid, and Justin Mateen, co-founder and former CMO of Tinder.