Mainframe Tape Storage Engineer II | 24/7 Production

Battle Tested; Plano (TX); On-site; USD 120,000 - 160,000; Full time

Job summary

Battle Tested is seeking an experienced Mainframe Tape Storage Infrastructure Engineer II to support enterprise IBM System z storage in a regulated, mission-critical environment. You will design, implement, maintain, and operate storage services across multiple data centers and regions.

The ideal candidate brings deep hands-on mainframe storage experience, a solid understanding of z/OS I/O architecture, and the ability to troubleshoot complex production issues.

Qualifications

• 7+ years of hands-on experience supporting enterprise mainframe storage environments.
• Experience with 24/7, mission‑critical production systems in highly regulated organizations.
• Strong understanding of z/OS I/O architecture, CHPIDs, control units, and I/O paths.
• Working knowledge of FICON protocols and multipathing concepts.
• Experience diagnosing I/O performance using RMF, SMF, and DCOLLECT.
• Experience working closely with z/OS systems programmers.
• Strong analytical, troubleshooting, and production support skills.
• Ability to communicate technical issues clearly and collaborate across teams.
• Availability to participate in a 24/7 on-call rotation, including some weekends and holidays.

Responsibilities

• Build, implement, maintain, and support mainframe tape and storage infrastructure across enterprise environments.
• Diagnose and resolve storage, connectivity, and I/O performance issues to maintain production availability.
• Support storage projects throughout their lifecycle, including design, deployment, operations, and improvement.
• Collaborate with z/OS systems programmers and other teams to deliver reliable infrastructure solutions.
• Translate requirements into infrastructure designs, deployment templates, and operational playbooks.
• Ensure solutions comply with enterprise architecture, security, and risk standards.
• Develop scripts and automation to reduce manual work and improve consistency.
• Evaluate third-party technologies against requirements, including on-site assessments.
• Provide technical guidance and knowledge sharing to other engineers and juniors.
• Work independently on complex problems and provide weekend/holiday on-call coverage.

Skills

z/OS I/O architecture

FICON protocols

RMF/SMF/DCOLLECT

24/7 on-call availability

Troubleshooting production systems

Cross-functional collaboration

Scripting/automation

Education

Bachelor's degree in Computer Science or related

Advanced technical certifications

Tools

CA1 tape management

ACC/SRS

DFHSM

DFSMS

IBM utilities and exits

ICF catalogs

DB2 storage perspectives

REXX scripting

Assembler (read/modify)

Job description

Battle Tested is seeking an experienced Mainframe Tape Storage Infrastructure Engineer II to support enterprise IBM System z storage in a regulated, mission-critical environment. You will design, implement, maintain, and operate storage services across multiple data centers and regions.

The ideal candidate brings deep hands-on mainframe storage experience, a solid understanding of z/OS I/O architecture, and the ability to troubleshoot complex production issues.