Senior Mainframe Security Specialist

Who We Are At Kyndryl, we run and reimagine the mission-critical technology systems that drive advantage for the world’s leading businesses. We are at the heart of progress; with proven expertise and a continuous flow of AI-powered insight, enabling smarter decisions, faster innovation, and a lasting competitive edge. For our people—Kyndryls—that means doing purposeful work that powers human progress. Join us and experience a flexible, supportive environment where your well-being is prioritized and your potential can thrive. The Role You will lead the design, administration, and governance of z/OS security with Broadcom CA Top Secret (TSS).. In this senior role, you’ll be responsible for TSS operational controls, drive MFA and certificate practices, strengthen encryption and network protection (AT TLS/IPsec), integrate security telemetry with SIEM, and partner with platform, database, and application teams to keep our IBM Z estate compliant, resilient, and audit ready. You’ll also guide modernization efforts and support complex changes while reducing risk. Key Responsibilities: Own CA Top Secret policy and administration Enable strong authentication & MFA on z/OS Protect networked services and crypto Harden USS/OMVS and platform security Logging, monitoring, and forensics Compliance, risk, and change Support hybrid environments and migrations You will be interacting and collaborating with cross-functional teams which makes identifying career paths with Kyndryl easy. Whether you want to delve into the intricacies of automating complex processes, drive essential systems, or ensure top-notch delivery to our customers, there is a path for you – and we’re invested in paving the way. Your future at Kyndryl Every position at Kyndryl offers a way forward to grow your career, from Junior System Administrator to Architect. We have opportunities for Cloud Hyperscalers that you won’t find anywhere else, including hands-on experience, learning opportunities, and the chance to ce...