[Hiring] Senior Mainframe Engineer @First National of Nebraska Inc.

Role Description

The Senior Mainframe Engineer plays a critical role within our managed services engineering team, providing technical leadership and driving operational excellence across customer environments. This position focuses on developing standards, optimizing processes, and ensuring consistent, reliable delivery of mainframe services. The ideal candidate will combine deep technical expertise with strategic vision to modernize z/OS environments and lead initiatives that enhance efficiency and scalability.

Key Responsibilities

• Serve as a technical leader, guiding best practices and mentoring team members on z/OS operating system 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.

Qualifications

• Proven experience in z/OS operating system upgrades, mass maintenance deployment, and software installation.
• In-depth knowledge of z/OS components: JES2, HCD/IODF, SMP/E, WLM, OMVS/USS, SMF/RMF, ASM, GRS, SDSF, TSO and RACF.
• Strong understanding of communication protocols (VTAM, TCP/IP) and LPAR configuration via HMC.
• Expertise in storage management (SMS, HSM, DFDSS, VSAM, IDCAMS, ICF Catalogs).
• Minimum 10 years of experience as a Mainframe Senior Systems Engineer.

Preferred Skills

• Familiarity with mainframe automation and monitoring tools.
• Experience with major subsystems (CICS TS, IMS, DB2 and IBM MQ).
• Knowledge of tape library configuration, printer setup, and TCP/IP server configuration.
• Understanding of IBM Z hardware architecture.

The Ideal Candidate for This Role

• Demonstrated ability to lead technical teams, influence decisions, and set strategic direction.
• Skilled in developing repeatable, standardized processes for complex system upgrades and migrations.
• Strong problem-solving mindset with a focus on efficiency and continuous improvement.
• Excellent communication skills—able to articulate technical concepts clearly to diverse audiences.

Work Environment

It is anticipated that the incumbent in this role will work remotely, offering you the freedom to contribute to our mission from wherever you work best, without compromising on career growth or connection to our team. Regardless of your location, you'll be fully integrated into our team through robust digital collaboration tools and regular communication. The incumbent can work remotely from any of the states listed on the job posting, though occasional travel may be required for in-person meetings. Please note, work location is subject to change based on business needs.

Compensation and Benefits Overview

• Medical, Dental, Vision Insurance.
• 401k, With Matching Contributions.
• Time Off Programs.
• Health Savings Account (HSA)/Dependent Care.
• Employee Banking.
• Growth Opportunities.
• Tuition Assistance.
• Short-Term/Long-Term Disability Insurance.

Equal Opportunity & Belonging

FNBO believes that the quality of our employee experience is at the heart of our customer experience. One key pillar of our intended employee experience is Belonging. Belonging means we are committed to fostering a workplace culture where employees of all backgrounds feel valued, recognized, and empowered to be their authentic selves—no matter their role or where they are in their journey.