Senior Mainframe Performance & Observability Engineer

Robotics Technologies LLC; Alpharetta (GA); On-site; USD 140,000 - 190,000; Full time

Job summary

Robotics Technologies LLC is seeking a senior mainframe performance engineer in Alpharetta, GA to monitor and optimize z/OS environments. You will analyze system health, identify bottlenecks, and collaborate with incident response teams to resolve issues quickly.

The role emphasizes capacity planning and data-driven decision making. Responsibilities include developing tuning strategies, supporting cost modeling and DevOps-like migration of tooling to Git pipelines.

Qualifications

• Bachelor’s degree or higher in a quantitative field or information systems.
• 12+ years of mainframe systems experience with z/OS performance management.
• Proven experience in mainframe performance monitoring, observability and capacity management.
• Experience resolving real-time performance problems via WLM and batch initiators.
• Knowledge of PR/SM is a plus.
• Proficiency in JCL and DB2; REXX/Python is advantageous.
• Advanced Excel (Charts, Pivot, VLOOKUPs, PowerPivot) and PowerPoint for data visualization.
• Experience with mainframe monitoring tools and performance tuning techniques.
• Experience handling large transactional datasets for insights.
• DevOps experience is a plus.

Responsibilities

• Monitor real-time z/OS system health and performance across CPU, memory, DASD, and WLM workloads.
• Detect and resolve resource anomalies and degradation risks in production systems.
• Develop performance tuning strategies and adjust service definitions and workload placement.
• Contribute to capacity planning by forecasting workload demand and capacity needs.
• Support cost modeling, vendor reporting, infrastructure sizing and optimization.
• Collect and analyze performance data to generate reports and dashboards.

Skills

Mainframe

z/OS

WLM

RMF

MICS

JCL

DB2

REXX/Python

Excel

PowerPoint

Capacity Planning

Observability

Data Analysis

DevOps

Education

Bachelor’s degree in information systems, Mathematics, Finance or another quantitative or related subject

Tools

RMF

MICS

Git

Job description

Robotics Technologies LLC is seeking a senior mainframe performance engineer in Alpharetta, GA to monitor and optimize z/OS environments. You will analyze system health, identify bottlenecks, and collaborate with incident response teams to resolve issues quickly.

The role emphasizes capacity planning and data-driven decision making. Responsibilities include developing tuning strategies, supporting cost modeling and DevOps-like migration of tooling to Git pipelines.