z/OS UNIX System Services (USS) Security Engineer – Vice President

Morgan Stanley — Bengaluru, India

z/OS UNIX System Services (USS) Security Engineer – Vice President Profile Description We’re seeking someone to join our ETS team as the USS Security Engineer who is responsible for securing and administering z/OS UNIX System Services (USS) environments on the mainframe. This role focuses on enforcing least privilege, protecting privileged access, and ensuring alignment between UNIX permissions, ESM controls (RACF/TSS), and enterprise security standards. The engineer will partner closely with Enterprise Z security architect, system programmers, middleware teams, and audit/compliance stakeholders to maintain a secure and compliant USS platform. About Enterprise Technology & Services (ETS) Enterprise Technology & Services (ETS) delivers shared technology services that support all business applications and over 3,000 production systems globally. ETS enables the full software development lifecycle—from development and testing to release engineering, monitoring, and operational support. In the Technology division, we leverage innovation to build the connections and capabilities that power our Firm, enabling our clients and colleagues to redefine markets and shape the future of our communities. This is a Lead Infra Prod Management & Reliability Engineering position at Vice President Level, which is part of the job family responsible for developing and maintaining software solutions that support business needs. Since 1935, Morgan Stanley is known as a global leader in financial services, always evolving and innovating to better serve our clients and our communities in more than 40 countries around the world. What you’ll do in the role: Responsibilities: Administer and manage USS identities, including UIDs, GIDs, OMVS segments, and service/shared IDs based on policy. Enforce naming standards, ownership traceability, and lifecycle controls for USS users and services. Manage and audit POSIX permissions, ownership, and execution rights across critical USS file systems. Control

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