Head of Mainframe DB2 Performance & Capacity

Fidelity Investments; Roanoke (TX); On-site; USD 180,000 - 250,000; Full time

Job summary

Fidelity Investments is seeking a Director of Mainframe DB2 Performance & Capacity to lead performance engineering, capacity management, and modernization efforts for its IBM z/OS environment. You will steer complex workloads across CICS, batch, DDF/JDBC, and replication, balancing resiliency, customer experience, and cost.

This role requires deep technical leadership and collaboration across engineering, operations, and vendors.

Qualifications

• 10+ years of experience in IBM z/OS environments with deep expertise in DB2 for z/OS performance, capacity management, database engineering, systems programming, or infrastructure engineering.
• Strong knowledge of DB2 architecture, DDF/DBAT processing, SQL performance, access path analysis, buffer pools, storage management, workload concurrency, and subsystem tuning.
• Experience analyzing DB2 and mainframe performance data using SMF, RMF, DB2 statistics and accounting records, and industry tools such as IntelliMagic, SYSVIEW, OMEGAMON, Strobe, MXG/SAS, Grafana, Power BI, or equivalent.
• Expertise in capacity planning, workload forecasting, business event readiness, stress testing, modernization measurement, and performance governance.
• Strong understanding of IBM z/OS, Parallel Sysplex, WLM, PR/SM, zIIP optimization, storage, networking, and infrastructure components that influence DB2 performance and resiliency.
• Experience supporting large-scale, high-volume, mission-critical environments and leading cross-functional analysis involving application, DBMS, CICS, MQ, storage, network, replication, and cloud integration teams.
• Proven ability to drive root-cause analysis, influence technical decisions, and communicate complex performance and capacity findings to both technical and executive audiences.
• Strong leadership, collaboration, and mentoring skills, with the ability to build trusted partnerships across engineering, operations, architecture, business, and vendor organizations.

Responsibilities

• Provide technical leadership for DB2 for z/OS performance, scalability, resiliency, and capacity management across Fidelity's mainframe platforms.
• Lead performance analysis, forecasting, tuning, and optimization for complex workloads including CICS, batch, DDF/JDBC, replication, and modernization projects.
• Evaluate impact of applications and infrastructure changes on DB2 workload behavior; develop capacity models and growth projections.
• Collaborate with application, infrastructure, architecture, and vendor teams to assess production readiness, stress testing, failover capabilities, and modernization outcomes.
• Guide incident analysis, performance investigations, and strategic initiatives; translate findings for senior leadership.

Skills

DB2 for z/OS performance

Capacity planning

Leadership

Cross-functional collaboration

Root-cause analysis

Executive communication

Tools

IntelliMagic

SYSVIEW

OMEGAMON

Strobe

MXG/SAS

Grafana

Power BI

Job description

Fidelity Investments is seeking a Director of Mainframe DB2 Performance & Capacity to lead performance engineering, capacity management, and modernization efforts for its IBM z/OS environment. You will steer complex workloads across CICS, batch, DDF/JDBC, and replication, balancing resiliency, customer experience, and cost.

This role requires deep technical leadership and collaboration across engineering, operations, and vendors.