The External Application Support Analyst provides 2nd‑line support for business‑critical external and third‑party applications supporting Front Office trading, Middle Office, Back Office, and Settlement platforms. The role is responsible for maintaining production stability, incident ownership, and operational reliability in a 24 x 5.5 environment, while continuously improving monitoring, automation, and support practices. The analyst works closely with business stakeholders, internal technology teams, and external vendors to deliver a high‑quality, resilient service.