**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** Crypto Express Adapter on z Systems allows companies to protect data and workloads from physical and logical attacks through cryptography. Cryptography is crucial for secure processing when applications must communicate with distributed elements or assess the validity of the data being processed. Candidate will be part of world class high-performance hardware security module (HSM) firmware team. The responsibility of the firmware team is to provide top-level security for processing and high-speed cryptographic offload We are Firmware professional working on Z systems ( IBM Advanced Mainframes ) and we build the most secure systems for our customers to deploy their enterprise applications. IBM z Systems are deployed with workloads where intensive IO Operations are getting executed. IBM Lab works on IO enablement firmware as well as boot firmware for z Servers. Work area would be Initial program load that is Boot firmware which enables the z Systems to boot and load supported Operating systems( Linux, zOS, zVM ) on Logical partitions. **Required technical and professional expertise** •4+ years of relevant Industry experience •Very strong in C and data structures, preferably in developing multi-core or multi-threaded applications. •Deep knowledge of Linux kernel internals (process scheduler, memory management, concurrency/synchronization, memory allocation, file systems) and profiling. •Experience in device driver development and support for NIC, HBA or Graphics cards •Understanding of riscv / arm architecture and micro architecture features likes Caches, MMU, SMP, coherency •Strong debugging skills •Experience with exercising/validation of system from user space, and knowledge of user space API **Preferred technical and professional experience** Cryptography knowledge or working experience 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.