Yuno is seeking a Staff Engineer to be the senior technical leader for Trust & Vault, focusing on PCI‑compliant card data vaulting, tokenization, authentication (3DS/SCA), and optimization to improve authorization and acceptance rates. This is a hands‑on leadership role in a zero‑tolerance‑for‑failure environment. You will design and build bank‑grade, resilient capabilities, drive a You Build It, You Run It culture, and mentor engineers while collaborating with Product, the CTO Office, and Staff