This senior-level IT Infrastructure Engineer role supports a financial client in New York City, focusing on large-scale environments with Linux, AIX, and mainframe systems. The position involves overseeing daily team operations, managing computer systems, storage, and subsystems, and ensuring high availability according to service level agreements. Key responsibilities include coordinating team resources, performing problem determination and resolution, and collaborating with various departments to maintain system integrity. The role is appealing for professionals seeking to lead in a complex technical setting with opportunities to work with diverse enterprise technologies. This is a full-time, on-site position requiring five days a week in the New York City office.