What does a great “Mainframe Capacity Engineer” do in Fiserv?
As a Mainframe Performance Engineer, you will be responsible for analyzing, optimizing, and monitoring the performance of our Mainframe systems and applications to ensure they meet business requirements efficiently. You will play a crucial role in identifying performance bottlenecks, optimizing system resources, and enhancing overall system performance to support our organization's objectives effectively.
What you will do:
- Conduct performance analysis and tuning activities for Mainframe systems, including CPU utilization, memory management, I/O throughput, and response times.
- Monitor system performance metrics and analyze performance data to identify bottlenecks, trends, and areas for optimization.
- Collaborate with development teams, system administrators, and architects to design, implement, and tune Mainframe applications and subsystems for optimal performance.
- Develop and execute performance testing plans, including workload modelling, benchmarking, and capacity planning, to ensure systems can handle expected loads and peak demands.
- Implement performance monitoring tools and automated alerts to proactively detect and address performance issues before they impact users or business operations.
- Provide recommendations and solutions for improving system performance, scalability, and reliability based on performance analysis findings.
- Work closely with vendors and support teams to troubleshoot and resolve performance-related issues in Mainframe software, hardware, and network components.
- Document performance tuning activities, best practices, and guidelines for internal reference and knowledge sharing.
- Stay current with emerging technologies, tools, and techniques in Mainframe performance engineering and share knowledge within the team.
What you will need to have:
A successful Mainframe Capacity Engineer will possess the following key skills/behaviors:
- Bachelor’s degree in computer science, Information Technology, or related field.
- 8-11 years of relevant experience
- Proven experience as a Mainframe Performance Engineer or similar role, with a strong understanding of Mainframe architecture and performance principles.
- Proficiency in performance monitoring and analysis tools for Mainframe environments, such as IBM RMF, WPS, MXG, CA Sysview etc..
- Solid understanding of performance tuning techniques for Mainframe subsystems and applications, including CICS, DB2, and MQ Series.
- Experience with performance testing methodologies, tools, and techniques for Mainframe systems, including workload modelling, capacity planning, and stress testing.
- Strong analytical and problem-solving skills, with the ability to diagnose and resolve complex performance issues efficiently.
- Excellent communication and interpersonal skills, with the ability to collaborate effectively with cross-functional teams and stakeholders.
- Proactive attitude towards learning and self-improvement, with a passion for staying updated with the latest trends and best practices in Mainframe performance engineering.
What would be great to have:
- IBM Certified Performance Analyst or equivalent certification in Mainframe performance tuning.
- Experience with performance optimization techniques for Mainframe virtualization technologies such as z/VM and z/Linux.
- Knowledge of scripting languages (e.g., REXX, Perl) for automating performance monitoring and analysis tasks.
- Familiarity with DevOps practices and tools for Mainframe performance management and monitoring.