Senior z/OS Mainframe Engineer — Remote

NeerInfo Solutions Pvt. Ltd.; United States; Remoto; USD 120.000 - 180.000; Tempo pieno

Descrizione del lavoro

NeerInfo Solutions Pvt. Ltd. seeks an senior IBM Z mainframe systems programmer to deliver rapid, reliable z/OS support for mission-critical environments. The role focuses on stability, security, and performance across customer, billing, and enterprise apps, with leadership in upgrades and automation.

The candidate will mentor engineers, drive ITIL-compliant change processes, and participate in on-call rotations, delivering expert troubleshooting and robust documentation.

Competenze

• :15+ years of hands-on experience in IBM z/OS systems programming in large enterprises.

Mansioni

• Install, configure, maintain, and upgrade IBM z/OS operating systems and associated system software.
• Perform software installation, maintenance, and servicing using SMP/E, including PTF application and management.
• Manage independent software vendor (ISV) products and related system maintenance activities.
• Maintain and troubleshoot PARMLIB, JES2, SDSF, IPL procedures, and other core z/OS components.
• Ensure system reliability, availability, and operational stability across enterprise mainframe environments.
• Lead or support IBM Z hardware refresh initiatives and z/OS upgrade projects.
• Work with IODF, HCD, LPAR configuration, and system initialization procedures.
• Plan and execute IPL activities, maintenance windows, and infrastructure changes.
• Coordinate upgrade activities with infrastructure, application, storage, networking, and operations teams.
• Validate system functionality and stability following upgrades and hardware changes.
• Provide advanced technical support for complex mainframe incidents and production issues.
• Perform dump analysis, root-cause analysis, and problem determination.
• Analyze SMF and RMF data to identify bottlenecks and capacity constraints.
• Participate in on-call rotations and resolve critical production issues within SLAs.
• Follow ITIL incident, problem, and change management processes.
• Monitor, analyze, and optimize mainframe performance across workloads.
• Identify resource constraints and recommend system-level improvements.
• Support capacity planning and performance forecasting.
• Collaborate with application and infrastructure teams to improve efficiency.
• Develop and maintain automation using REXX, Ansible for z/OS, Zowe, or similar tools.
• Automate repetitive system administration, maintenance, monitoring, and operational activities.
• Improve platform visibility through monitoring, reporting, and automation.
• Support modernization initiatives involving z/OS Connect, APIs, CI/CD pipelines for z/OS, and hybrid cloud integration.
• Execute system changes through change control procedures.
• Support compliance with NERC CIP and other security standards.
• Maintain accurate system documentation and runbooks.
• Provide knowledge transfer and mentor junior engineers.
• Communicate technical issues clearly to infrastructure leadership.

Conoscenze

IBM z/OS systems programming

z/OS administration

Mainframe performance tuning

Production support

Automation (REXX/Ansible/Zowe)

Troubleshooting & incident management

ITIL processes

Mentoring

Security/compliance (NERC CIP)

Strumenti

SMP/E

JES2

SDSF

PTF management

Zowe

REXX

Ansible for z/OS

IBM NetView

IBM OMEGAMON

z/OS Connect

Descrizione del lavoro

NeerInfo Solutions Pvt. Ltd. seeks an senior IBM Z mainframe systems programmer to deliver rapid, reliable z/OS support for mission-critical environments. The role focuses on stability, security, and performance across customer, billing, and enterprise apps, with leadership in upgrades and automation.

The candidate will mentor engineers, drive ITIL-compliant change processes, and participate in on-call rotations, delivering expert troubleshooting and robust documentation.