Mainframe Host Network

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

Your Role

As a System Administrator at Kyndryl, you’ll solve complex problems and identify potential future issues across the spectrum of platforms and services. You’ll be at the forefront of new technology and modernization, working with some of our biggest clients – which means some of the biggest in the world.

There’s never a typical day as a System Administrator at Kyndryl, because no two projects are alike. You’ll be managing systems data for clients and providing day-to-day solutions and security compliance. You’ll oversee a queue of assignments and work directly with technicians, prioritizing tickets to deliver the best solutions to our clients.

What You Will Do

• Support host network connectivity.
• Administer TCP/IP and SNA infrastructure.
• Support external customer and partner connectivity.
• Troubleshoot network performance issues.
• Maintain availability of mission-critical network services.
• Support modernization and protocol migration initiatives.

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. You’ll also get the chance to share your expertise by recommending modernization options, identifying new business opportunities, and cultivating relationships with other teams and stakeholders. Does the work get challenging at times? Yes! But you’ll collaborate with a diverse group of talented people and gain invaluable management and organizational skills, which will come in handy as you move forward in your career.
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 opportunity here.

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 Technical and Professional Expertise

• 5 to 7 years of experience in Mainframe Host Network administration and support.
• Strong experience in z/OS Communications Server, including VTAM, TCP/IP, Enterprise Extender, and SNA administration.
• Expertise in DNS, IP routing, network security, packet analysis, connectivity diagnostics, and network performance tuning.
• Experience with problem determination, communications infrastructure support, and enterprise network troubleshooting.
• Knowledge of Microsoft Windows Server 2016/2019, VMware ESX, and public/private cloud environments, including on-premises to cloud migrations.
• Strong analytical, troubleshooting, and communication skills in production environments.

Preferred Technical and Professional Experience

• Experience with IBM z/OS Communications Server, VTAM configuration, Enterprise Extender (HPR/IP), and SNA networking.
• Knowledge of TLS/SSL, encryption, firewall management, and secure network communications.
• Experience with Wireshark, OSA/Sniffer, NetView, OMEGAMON, and enterprise monitoring tools.
• Familiarity with OSA-Express, HiperSockets, Parallel Sysplex, and IBM Z networking technologies.
• Experience in network performance monitoring, capacity planning, disas…