Introduction
At IBM, work is more than a job - it's a calling: To build. To design. To code. To consult. To think along with clients and sell. To make markets. To invent. To collaborate. Not just to do something better, but to attempt things you've never thought possible. Are you ready to lead in this new era of technology and solve some of the world's most challenging problems? If so, lets talk.

Your Role and Responsibilities

• Execute 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 Proofpoint
• Contribute to performance study by executing benchmarks and collecting various performance measurements and metrics
• Collaborate with relevant stakeholders to share/borrow best practices in the performance arena

• Working knowledge of Operating System Linux/Unix
• Thorough understanding of hardware & systems architecture
• Strong understanding of Virtualization (working experience either with z/VM, PowerVM, KVM, Xen, VMware, etc.)
• Hands-on experience in Systems software & Performance testing
• Knowledge of whole-stack performance analysis and problem determination, quick prototyping and iterative experimentation
• Strong team player with good communication and interpersonal skills
• Proven ability to work effectively in a global team environment
• Proven command over the English language, both written and verbal

• Kernel concepts and Internals (Process Management, Memory Management, Virtualization, Scheduling, Networking, Security, etc.)
• Proficient programming skills for automation and usage of frameworks using scripting using shell, python, perl etc. is desirable
• Experience working with debuggers and demonstrated problem-solving skills, especially code optimization
• Familiar with Software Performance tools and benchmarks
• Prior experience on performance engineering and tuning/optimization is desirable
• Flexible to pick up and ramp up quickly on different aspects of Linux performance and adjoining areas, depending on dynamic business priorities
• Working knowledge of transactional workloads like DayTrader, Oracle, MongoDb, Postgress/SQL, etc. is preferred
• Familiarity of Cloud associated workloads especially leveraging the RedHat OpenShift platform