The Senior Mainframe Operating Systems Engineer will be part of the Mainframe Operating Systems team, which is responsible for the engineering, support, stability, security, and modernization of Fidelity's enterprise mainframe platform. This role involves collaborating with various teams to maintain operational excellence and implement new technologies. The engineer will focus on automating and modernizing the mainframe environment while ensuring high performance and reliability. The position requires strong technical expertise and a commitment to continuous learning and knowledge sharing.

• 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 with z/OS Unix System Services (USS), JCL, REXX, Python, and shell scripting (KSH/SH).
• Experience with change management, incident management, problem management, and software lifecycle practices.
• Experience working directly with software vendors to resolve technical issues.
• 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.

• Support the stability, availability, security, and performance of Fidelity's enterprise z/OS operating system environment.
• Install, customize, upgrade, and maintain IBM and Independent Software Vendor software products.
• Lead operating system upgrades, software maintenance activities, and technology refresh initiatives.
• Automate operational processes utilizing JCL, REXX, Python, Ansible, and other platform engineering tools.
• Support critical incident resolution, problem determination, and root cause analysis.
• Advance modern mainframe capabilities through technologies such as z/OSMF, Zowe, and GitHub Enterprise.
• Participate in disaster recovery planning, testing, and resiliency improvements.
• Improve platform observability, monitoring, automation, and operational excellence.
• Provide technical leadership and mentor team members.

• Fidelity offers competitive compensation, annual bonuses, retirement contributions, comprehensive healthcare coverage, parental leave, tuition assistance, wellness programs, and extensive professional development opportunities.