CyberSecurity Infrastructure - Mainframe Security ACF2

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

The Mainframe Security is responsible for safeguarding enterprise mainframe environments by managing access controls, monitoring security events, and ensuring compliance with organizational and regulatory standards. This role involves close collaboration with IT operations, audit teams, and business stakeholders to maintain a secure and resilient mainframe infrastructure.

Key Responsibilities

• Prepare and review daily, weekly, and monthly audit reports.
• Coordinate with business units and technical support teams.
• Support customers by preparing ad hoc reports and delivering presentations.
• Monitor the environment for compliance with security standards.
• Provide 24/7 support as required.
• Experience with MVS is an advantage.
• Proficiency in Microsoft Outlook, Word, Excel, and PowerPoint.
• Strong written and verbal communication skills.
• Excellent organizational and multitasking abilities, with the capacity to manage concurrent deliverables.
• Ability to collaborate effectively within a global team and work independently when required.
• Strong analytical and problem-solving skills.
• Self-motivated, detail-oriented, and comfortable working in a fast-paced environment.

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 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

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.

• Core security knowledge and a sound understanding of security best practices.
• 5-10 years of Hands-on experience with ACF2 system security and mainframe access administration is preferred.
• Hands-on experience administering ACF2 login IDs, datasets, and resource rules.
• Ability to interpret and maintain ACF2 dataset and resource rules.
• Experience monitoring compliance with system security policies and investigating violations or incidents.
• Experience of z/OS integrity and security architecture.
• Experience of ACF2 architecture and control mechanisms.
• Expert with z/OS console commands used for ACF2.
• Experience with ACF2 GSO listings and configuration options.
• Experience with ACF2 utilities, including ACFBATCH, ACFBSYNC, ACFCOMP, ACFDCMP, ACFNRULE, ACFRGP, and ACFXREF.
• Experience to manage end-to-end mainframe certificate deployment.
• Experience in Pervasive encryption deployment

• Strong proficiency in TSO, JCL, REXX, ACF2 utilities, JES2, and ISPF.
• Experience with zSecure, ETFA, CA Cleanup, or other security tools.
• Experience with other mainframe security products is an advantage.

Being You

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.

What You Can Expect

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.