Senior Mainframe Security Specialist (Broadcom CA Top Secret)

Senior Z/OS Security Role

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.

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.

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 certify in all four major platforms. One of the benefits of Kyndryl is that we work with clients in a variety of industries, from banking to retail. Whether you want to broaden your knowledge base or narrow your scope and specialize in a specific sector, you can find your opportunity here.

Kyndryl Poland are proud to be certified last year by "Mamo Pracuj" foundation as Parents Friendly Employer. In joining Kyndryl Poland you will work for a diverse company that invests in your future and join a team culture that amplifies learning, and development agility. Kyndryl has a flexible working policy. Depending on the position there are a number of options including some home working opportunities. These ensure a better balance and improved flexibility both inside and outside of work for you. Plus, we offer many other cultural and environmental benefits to our employees. From an agile office space with games room, to team dinners and seasonal gifts. As well as Charity, ESG initiatives and focus groups, where our employees co-create our new company culture strongly based on their personal feedback and sentiments. Our employees enjoy varying other options too: utilizing our Employee Assistance Program (with online consultants in law, tax, life events, psychology); opting in for the Retirement pension plan; using their company mobile for private use; and we have a Cafeteria platform, with Kyndryl benefits points. Of course, you can also take advantage of other great offerings:

• Private health card
• Life insurance package
• Multisport Card
• Discounts for Kyndryl employees
• A wide range of benefit options for parents and children
• Sports activities and team events
• Free language courses & many personal development possibilities
• Employee referral program
• Mindfulness and Yoga Classes

These are just a part of the initiatives and opportunities available to you, as we continuously develop as an Employer of Choice. We are looking forward to seeing you join us!

Who You Are You're good at what you do and possess the required experience to prove it. However, equally as important – you have a growth mindset; keen to drive your own personal and professional development. You are customer-focused – someone who prioritizes customer success in their work. And finally, you're open and borderless – naturally inclusive in how you work with others.

Required qualifications:

• Experience working with z/OS security
• Experience with administering Broadcom CA Top Secret
• MFA implementation experience
• Proficiency with SMF/security logging and SIEM
• Understanding of RACF and ACF2
• Tooling fluency: JCL, TSO/ISPF, SDSF,
• Strong diagnostic and documentation habits
• ITIL, SOX, ISO 27001 familiarity

Preferred Qualifications:

• Experience across RACF/ACF2/TSS.
• SIEM exposure
• Scripting/automation
• Relevant certifications

If you have a passion for technology and a desire to continually improve your skills – this is the position for you. You will work with a talented team of professionals and collaborate on exciting projects that are shaping the future of our industry.

The "Kyn" in Kyndryl means kinship, which represents the strong bonds we have with each other, our customers and our communities. We focus on ensuring all Kyndryls feel included and we welcome people of all cultures, backgrounds, and experiences. Even if you don't meet every requirement, we encourage you to apply. We believe in growth, and we're excited to see what you can bring. At Kyndryl, employee feedback has told us that our number one driver of employee engagement is belonging. That sense of belonging — being a valued, respected, trusted member of the team — is fundamental to our culture and fueling great experiences for our customers. This dedication to welcoming everyone into our company means that Kyndryl gives you the ability to thrive and contribute to our culture of empathy and shared success. That's The Kyndryl Way.

Your career with us isn't just a job—it's an adventure with purpose. We offer a dynamic, hybrid-friendly culture that supports your well-being and empowers you to grow. Our Be Well programs are thoughtfully designed to support your financial, mental, physical, and social health—because we know that when you feel your best, you do your best. From your very first day, you'll dive into impactful work that powers the systems our customers rely on every day. You won't just contribute—you'll make a difference, tackling meaningful projects that sharpen your skills and fuel your growth. We're here to champion your journey. With powerful tools to chart your career path, personalized development goals aligned with your ambitions, and continuous feedback to keep you inspired and on track, you'll have everything you need to thrive and evolve. You'll develop in-demand skills to grow your career and achieve your ambitions with access to cutting-edge learning opportunities—from certifications with Microsoft, Google, and Amazon to coaching and hands-on experiences. And through it all, you'll be part of a culture that values empathy, restless learning, and a devotion to shared success. We want you to thrive here—and we're committed to helping you do just that. Ready to make an impact? Join us and help shape what's next.

Get Referred!

If you know someone that works at Kyndryl, when asked 'How Did You Hear About Us' during the application process, select 'Employee Referral' and enter your contact's Kyndryl email address.