Systems Performance Analyst
Introduction
The IBM mainframe (Z Systems) is responsible for most credit card transactions and is used by the many of the top insurers, banks, retailers, and airlines.
IBM z/VM® is an operating system with highly secure and scalable hypervisor and virtualization technology designed to run Linux®, z/OS®, z/VSE® and z/TPF virtual machines as well as Red Hat® OpenShift® on IBM zSystems™ and IBM LinuxONE servers. z/VM provides a highly secure and scalable environment for efficiently running critical Linux applications, with support for more Linux virtual servers than any other platform in a single footprint.
The z/VM team is a worldwide team, primarily located in Poughkeepsie, NY with expansion plans in Bangalore, India. All phases of the software life cycle are performed within this team, including the design, development, test, performance, as well as supporting the product in the field with customers. Agile methodologies are used throughout the life cycle.
We are looking for qualified software engineer candidates to be part of our IBM Z Systems team, to help us take z/VM virtualization to the next level on the mainframe.
Your role and responsibilities
Analyze, evaluate and execute workloads & benchmarks to identify hotspots/bottlenecks in the z/VM implementation
• Evaluate the performance across the IBM zSystems and IBM LinuxONE servers
• Suggest and implement platform specific changes/improvements using prototypes as proof points
• Carry out performance study by correlating various performance measurements and metrics
• Identify and suggest tools, utilities, benchmarks and methodologies to evaluate the performance and fine tune the product
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• Define performance scenarios, test cases/suites, parameters and targets to accomplish as a team
• Lead the team to schedule and track task assignment, resolve technical roadblocks and help make progress
• Evaluate and analyze performance of various workloads associated with Enterprise as well as Cloud on the platform to help maximize performance
• Collaborate with relevant stakeholders including research, development, sales, offering, marketing teams to ensure product is highlighted by showcasing performance collaterals
• Work with peer Product Owners, Architects, and Managers to project the status of the tasks at hand as well as propose any implementation changes beneficial to the overall product
Required education
Bachelor's Degree
Required technical and professional expertise
1. 2+ years of working knowledge of Operating System Linux/Unix with hands-on experience in Systems software programming
2. Thorough understanding of hardware & systems architecture is a must
3. Strong understanding of Virtualization (working experience with either of z/VM, PowerVM, KVM, Xen, VMware, etc.)
4. Hands-on with Performance test, analysis, tuning, optimization and associated performance tools and utilities
5. Good understanding of kernel concepts and OS internals (Process Management, Memory Management, Virtualization, Scheduling, I/O (Networking & Storage), Security, etc.)
6. Knowledge of whole-stack performance analysis and problem determination, quick prototyping and iterative experimentation
7. Experience working with debuggers and demonstrated problem-solving skills, especially code optimization
8. Strong team player with good communication and interpersonal skills
9. Proven ability to work effectively in a global team environment
10. Proven command over the English language, both written and verbal
Preferred technical and professional experience
1. Familiar with program implementation preferably with either of ASSEMBLY, PLX, C, C++, REXX and scripting using shell, python, perl, etc.
2. Working knowledge of automation frameworks (jenkins, robot, etc.) is desirable
3. Flexible to pick up and ramp up quickly on different aspects of Linux performance and adjoining areas, depending on dynamic business priorities
4. Working knowledge of transactional workloads like DayTrader, Oracle, MongoDb, Postgress/SQL, etc. is preferred
5. Familiarity of Cloud associated workloads especially leveraging the RedHat OpenShift platform
ABOUT BUSINESS UNIT
IBM Systems helps IT leaders think differently about their infrastructure. IBM servers and storage are no longer inanimate - they can understand, reason, and learn so our clients can innovate while avoiding IT issues. Our systems power the world's most important industries and our clients are the architects of the future. Join us to help build our leading-edge technology portfolio designed for cognitive business and optimized for cloud computing.
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