Senior zOS Systems Engineer

About the role

The Senior z/OS Systems Engineer at BBH is responsible for the architecture, design, and engineering standards of the enterprise z/OS platform. This role involves platform architecture, engineering standards, and modernization initiatives, as well as performance tuning and ensuring the overall health of the environment.

Responsibilities

• Own the architecture, design, and engineering standards for the enterprise z/OS platform, including sysplex design, availability, performance, and recoverability.
• Serve as an escalation point for complex z/OS, JES, sysplex, and program product issues.
• Define and maintain best practices for operating system configuration, resiliency, and performance optimization.
• Lead capacity planning, performance analysis, and tuning strategies aligned with business requirements.
• Lead z/OS installation, customization, and lifecycle management of IBM program products such as GRS and RMM.
• Plan and execute z/OS upgrades, refreshes, and modernization initiatives, ensuring minimal risk and business disruption.
• Apply operating system and program product maintenance on a regular and controlled basis.
• Maintain and continuously improve disaster recovery architecture and procedures, ensuring recoverability objectives are met.
• Partner with infrastructure teams to ensure end-to-end availability across compute, storage, and network layers.
• Provide technical leadership and mentorship to system programmers and junior engineers.
• Act as a trusted advisor to application development, infrastructure, and security teams.
• Interface effectively with all areas affected by major system changes, including business stakeholders and vendor partners.
• Represent the z/OS platform in architecture reviews and enterprise technology initiatives.

Requirements

• 10+ years of experience as a z/OS Systems Engineer or System Programmer, including significant experience in large-scale Parallel Sysplex environments.
• Deep expertise in z/OS architecture, internals, operations, and recovery scenarios.
• Proven experience leading complex, enterprise-level z/OS initiatives and acting as a technical authority.
• Extensive experience installing and customizing IBM program products; GRS and RMM experience preferred.
• Strong working knowledge of major subsystems, including CICS, Db2, and MQ.
• Hands-on experience with I/O configuration using HCD.
• Advanced debugging and problem-determination skills across OS and program products.
• Strong experience with RACF; familiarity with zSecure is a plus.
• Experience writing user exits and automation using Assembler, REXX, CLIST, or COBOL.
• Expert knowledge of performance and monitoring tools, including RMF, CMF, OMEGAMON, and Intellimagic.
• Experience with mainframe automation tools such as AutoOperator, OPS/MVS, or AF/Remote.
• Strong organizational, time-management, and communication skills (written and verbal).
• Excellent interpersonal skills and a customer-focused mindset.
• Comfortable operating in highly regulated, high-availability enterprise environments.

Qualifications

• Strong organizational, time-management, and communication skills (written and verbal).
• Excellent interpersonal skills and a customer-focused mindset.
• Comfortable operating in highly regulated, high-availability enterprise environments.

Skills

• Strong organizational, time-management, and communication skills (written and verbal).
• Excellent interpersonal skills and a customer-focused mindset.
• Comfortable operating in highly regulated, high-availability enterprise environments.

Benefits

No information provided in the job posting.

Pay

Jersey City: $160,000 - $200,000 Base Salary + Annual Performance Bonus

Schedule

No information provided in the job posting.