This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Mainframe z/OS Expert based in India. We are seeking an experienced Mainframe z/OS Expert to support complex enterprise systems and ensure the reliability, performance, and security of critical infrastructure environments.This role is designed for a highly skilled professional with deep knowledge of z/OS internals, system operations, and mainframe technologies.You will contribute to advanced troubleshooting, software installation, testing, and optimization activities across large-scale mainframe platforms.The position offers the opportunity to work remotely while collaborating on technically challenging projects requiring strong expertise and problem-solving capabilities.You will leverage programming skills, security knowledge, and operational experience to improve system stability and deliver high-quality solutions.This role is ideal for a senior mainframe specialist who enjoys solving complex technical challenges and working with mission-critical environments.