Senior Mainframe OS Engineer - Automation & Modernization

Fidelity Investments; Roanoke (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

Fidelity Investments is seeking a Senior Mainframe Operating Systems Engineer to join the Mainframe Operating Systems team. You will help maintain, upgrade, and automate the enterprise z/OS environment, collaborating with infrastructure, application development, architecture, and vendor groups to deliver reliable mainframe services.

You will lead upgrades, automation efforts, and modernization initiatives while ensuring security, stability, and high availability for critical business

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent professional experience.
• 5 - 8+ years of hands-on experience supporting IBM z/OS operating systems in a systems programming or operating systems engineering role.
• Experience administering and supporting large-scale enterprise mainframe environments.
• 5+ years experience installing, customizing, upgrading, and maintaining IBM and Independent Software Vendor software products using SMP/E.
• Experience supporting Parallel Sysplex environments, Coupling Facilities, and high-availability mainframe architectures.
• Experience supporting software products including Top Secret, Control-M, MFX, CA-1, Endevor, z/OSMF, System Automation, NetView, OMEGAMON, SYSVIEW, Mobius, and related technologies.
• Experience with z/OS Unix System Services (USS), JCL, REXX, Python, and shell scripting (KSH/SH) to automate operational and engineering activities.
• Experience with change management, incident management, problem management, and software lifecycle practices.
• Experience working directly with software vendors to resolve technical issues and perform root cause analysis.
• Experience supporting disaster recovery solutions including GDPS, Global Mirror, and Metro Mirror.
• Experience with modern mainframe tooling, automation frameworks, DevOps practices, and platform engineering concepts.

Responsibilities

• Stability, availability, security, and performance of Fidelity's enterprise z/OS operating system environment.
• Installing, customizing, upgrading, and maintaining IBM and Independent Software Vendor software products while ensuring software currency and platform resiliency.
• Leading operating system upgrades, software maintenance activities, technology refresh initiatives, and infrastructure modernization efforts.
• Automating operational processes utilizing JCL, REXX, Python, Ansible, and other platform engineering tools to improve efficiency and reduce operational risk.
• Supporting critical incident resolution, problem determination, root cause analysis, and production support activities for business-critical systems.
• Advancing modern mainframe capabilities through technologies such as z/OSMF, Zowe, GitHub Enterprise, APIs, IBM Open Enterprise SDK for Python, and contemporary development practices.
• Supporting emerging technologies and modernization initiatives including z/OS Container Extensions (zCX), IBM Wazi, event-driven automation, and developer productivity solutions.
• Participating in disaster recovery planning, testing, and resiliency improvements utilizing GDPS, Global Mirror, and Metro Mirror technologies.
• Improving platform observability, monitoring, automation, and operational excellence through proactive engineering practices and modern monitoring solutions.
• Providing technical leadership, mentoring team members, and partnering with business, technology, vendor, and application development teams to deliver reliable infrastructure services.

Skills

IBM z/OS knowledge

SMP/E expertise

Mainframe automation

Zowe / z/OSMF

UNIX System Services

Python scripting

JCL / REXX

Vendor collaboration

Disaster recovery planning

Problem solving

Education

Bachelor's degree in Computer Science or related field

Tools

Top Secret

Control-M

MFX

CA-1

Endevor

z/OSMF

SysView

OMEGAMON

NetView

Mobius

Job description

Fidelity Investments is seeking a Senior Mainframe Operating Systems Engineer to join the Mainframe Operating Systems team. You will help maintain, upgrade, and automate the enterprise z/OS environment, collaborating with infrastructure, application development, architecture, and vendor groups to deliver reliable mainframe services.

You will lead upgrades, automation efforts, and modernization initiatives while ensuring security, stability, and high availability for critical business