By Jennifer Sieg The long-time boss of Silicon Valley Bank’s (SVB) UK arm, who stayed on after its collapse and rescue by HSBC last year, has been poached by London-based investment firm Octopus Ventures. Erin Platts has been appointed UK chief executive of Octopus Ventures, marking the end of her two-decade career with SVB, which collapsed last year. Platts is due to stay in her role until the end of the year to help choose a successor and become a “special advisor” to HSBC from the beginning of 2025. “After 20 years at Innovation Banking, with the bank in a strong position and with an experi…