Lead performance engineer

**Introduction** At IBM Infrastructure & Technology, we design and operate the systems that keep the world running. From high-resiliency mainframes and hybrid cloud platforms to networking, automation, and site reliability. Our teams ensure the performance, security, and scalability that clients and industries depend on every day. Working in Infrastructure & Technology means tackling complex challenges with curiosity and collaboration. You'll work with diverse technologies and colleagues worldwide to deliver resilient, future-ready solutions that power innovation. With continuous learning, career growth, and a supportive culture, IBM provides the opportunities to build expertise and shape the infrastructure that drives progress. **Your role and responsibilities** As a Firmware Developer, you will design, develop, test, and deliver offerings for IBM Z using the latest technologies. You will work in a team-based, collaborative environment with peers both locally and across the global organization, applying agile methodologies throughout the entire development cycle. Your primary responsibilities will include: • Develop Firmware Components: Create and use design documentation, such as Functional Programming Specifications and high-level design documents, to implement identified components. Ensure that the implemented components are unit tested and ready to be integrated into the product. • Collaborate with Designers: Work with designers to understand users and create a tangible experience through combined efforts. • Debug and Test Code: Debug reported problems, design, develop, and unit test code fixes to provide solutions for identified defects. • Deliver Solutions: Develop and support various projects, including hardware management console mobile apps, cryptographic processors, I/O adapters, and Secure Service Containers. • Apply Agile Methodologies: Follow agile methodologies throughout the development cycle, from design to real hardware integration testing. **Required technical and professional expertise** * Performance Engineer with 6-9 years of experience in Hardware core performance verification and Micro architecture knowledge. * Programming skills C/Python. * Knowledge of Computer Architecture as well as Micro Architecture concepts. * Knowledge of performance modeling, including identifying critical factors that impact system performance. * Good Communication and presentation skills. **Preferred technical and professional experience** The IBM Z Hardware Performance team is responsible for evaluating and analyzing current, upcoming, and conceptual processor and cache subsystem designs that make up a large part of the platform. The team also plays a critical role in testing and validating new changes in the core microarchitecture to ensure they meet defined performance targets. Additionally, the team traces new workloads on hardware and uses specialized tools to support pre-silicon performance verification. Job Duties * Analyze and debug processor core performance issues during pre-silicon verification. * Collaborate with hardware designers to investigate and resolve issues identified in simulation runs. * Execute and manage scripts within element-level and system-level simulation environments. * Compare simulation results against real hardware performance to ensure accuracy. * Enhance and update tracing tools to maintain compatibility with new architectures. * Provide recommendations to improve processor and system design for better performance. IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.