Santander in Querétaro is seeking a Securities Finance Operations Jr Analyst to support collateral management, margin call processing, and client interactions. The role involves reconciliation, reports, and liaison with multiple internal teams to resolve issues and ensure SOX-aligned controls. The candidate should hold a Bachelor's degree in Finance or related fields and have familiarity with tools like Calypso, MarginSphere, Trioptima, Excel macros/VBA/SQL, Access, Bloomberg, and Murex.