Remote Lead Mainframe Engineer, z/OS Modernization

First National Bank of Omaha; South Carolina; Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

Medical Insurance

401k with Matching Contributions

Time Off Programs

Health Savings Account / DepCare

Employee Banking

Tuition Assistance

Disability Insurance

Job summary

First National Bank of Omaha is seeking a Senior Mainframe Engineer to lead modernization of z/OS environments and guide upgrades across customer mainframe platforms. You will help design standardized upgrade approaches, mentor the team, and ensure reliable delivery of mainframe services.

The role requires deep z/OS expertise, 10+ years as a senior engineer, and strong collaboration across cross-functional teams. Remote work is supported with possible travel as needed.

Qualifications

• Minimum 10 years of experience as a Mainframe Senior Systems Engineer.
• Proven expertise in z/OS upgrades and mass maintenance.
• Strong leadership and collaboration skills.

Responsibilities

• Serve as a technical leader, guiding best practices and mentoring team members on z/OS upgrade optimization.
• Design and implement standardized approaches for z/OS upgrades and mass maintenance to ensure repeatable, high-quality outcomes.
• Lead efforts to optimize system performance, streamline processes, and reduce operational complexity.
• Oversee installation, configuration, and maintenance of IBM and ISV software products, ensuring alignment with enterprise standards.
• Collaborate with cross-functional teams to plan and execute operating system upgrades with minimal business impact.
• Develop and maintain comprehensive technical documentation and templates for operating system rollouts.
• Drive adoption of new technologies and capabilities (e.g., Sysplex enhancements, automation frameworks) to support strategic objectives.
• Act as the subject matter expert (SME) for mainframe infrastructure projects, providing technical direction and governance.
• Provide advanced troubleshooting and resolution for escalated incidents beyond Level 1 support.
• Participate in after-hours and weekend support as required.

Skills

z/OS upgrades

Mass maintenance deployment

Software installation

JES2

HCD/IODF

SMP/E

WLM

OMVS/USS

SMF/RMF

RACF

LPAR via HMC

Technical leadership

Tools

JES2

HCD/IODF

SMP/E

WLM

OMVS/USS

SMF/RMF

RACF

TSO

IDCAMS

DFDSS

VSAM

ICF Catalogs

Job description

First National Bank of Omaha is seeking a Senior Mainframe Engineer to lead modernization of z/OS environments and guide upgrades across customer mainframe platforms. You will help design standardized upgrade approaches, mentor the team, and ensure reliable delivery of mainframe services.

The role requires deep z/OS expertise, 10+ years as a senior engineer, and strong collaboration across cross-functional teams. Remote work is supported with possible travel as needed.