Senior Mainframe Engineer - Lead z/OS Modernization (Remote)

Fnbo---First-National-Bank-of-Omaha-1; United States; Remote; USD 120,000 - 170,000; Full time

Benefits offered by this job

Medical, Dental, Vision Insurance

401k with Matching

HSA

Tuition Assistance

Disability Insurance

Job summary

First National Bank of Omaha (FNBO) seeks a Senior Mainframe Engineer to lead z/OS upgrade initiatives and drive reliable mainframe delivery in our managed services team. You will design standardized upgrade approaches and mentor engineers to modernize z/OS for improved efficiency and reliability.

You will oversee software installations, collaborate across teams, and contribute to automation frameworks while ensuring security and optimal performance.

Qualifications

• Experience in z/OS upgrades, mass maintenance, and software installation.
• Deep knowledge of z/OS components listed (JES2, SMP/E, SMS, etc.).
• Strong TCP/IP and VTAM familiarity; LPAR configuration via HMC.

Responsibilities

• Lead technical best practices for z/OS upgrades and modernization.
• Design standardized upgrade and maintenance processes for repeatable outcomes.
• Oversee IBM and ISV software installations aligning with enterprise standards.
• Collaborate with cross-functional teams to plan upgrades with minimal impact.
• Develop and maintain docs/templates for OS rollouts.
• Drive automation and new capability adoption (Sysplex, automation).

Skills

z/OS upgrades

JES2

HCD/IODF

SMP/E

WLM

OMVS/USS

SMF/RMF

ASM

GRS

SDSF

TSO

RACF

VTAM

TCP/IP

LPAR/HMC

Tools

SMS

HSM

DFDSS

VSAM

IDCAMS

ICF Catalogs

Job description

First National Bank of Omaha (FNBO) seeks a Senior Mainframe Engineer to lead z/OS upgrade initiatives and drive reliable mainframe delivery in our managed services team. You will design standardized upgrade approaches and mentor engineers to modernize z/OS for improved efficiency and reliability.

You will oversee software installations, collaborate across teams, and contribute to automation frameworks while ensuring security and optimal performance.