The Role

As a Mainframe Host Network Support (HNS) 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.

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.

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 timesYes! 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.

Key Responsibilities:

- Lead end-to-end Host Network Services (HNS) support for enterprise mainframe environments.
- Ensure stability, availability, and performance of host network infrastructure.
- Serve as the Subject Matter Expert (SME) for VTAM, TCP/IP, and Communication Server technologies.
- Perform advanced troubleshooting using traces, dumps, packet analysis, and diagnostic tools.
- Drive root cause analysis (RCA) and implement permanent fixes for recurring network issues.
- Manage VTAM configurations,



session management, and TCP/IP stack tuning for optimal performance.
- Configure and maintain PAGENT policies while supporting network communication services.
- Conduct deep-dive network diagnostics using IPTRACE, NETSTAT, OSA traces, VTAM traces, and related tools.

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 8 years in Mainframe Networking / HNS support
- Strong hands-on experience with VTAM, TCP/IP on z/OS, and z/OS Communication Server
- Expertise in PAGENT (Policy Agent) and strong understanding of network protocols, routing concepts, and SNA/IP networking in mainframe environments
- Proven experience in advanced troubleshooting, including packet trace analysis, performance tuning, debugging, and resolution of complex production incidents
- Solid knowledge of Host Networking Services (HNS) system programming concepts
- Strong understanding of high availability architectures, failover mechanisms, and resilience configurations




- Ability to manage and support mission-critical enterprise production environments
- Demonstrated experience in root cause analysis and technical problem resolution
- Experience working in customer-facing roles and managed services/global delivery environments

Preferred Technical and Skilled Experience

- Experience with advanced networking technologies such as Enterprise Extender (EE), HiperSockets, and OSA adapters
- Knowledge of security protocols including AT-TLS and IPSec
- Exposure to automation tools and scripting (e.g., REXX, Ansible, or similar)
- Experience with monitoring tools and AIOps platforms
- Prior experience working in large-scale global delivery environments

Being You

The Kyn in Kyndryl means kinship, which represents the robust 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.

Disclaimer : This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Mainframe Host Network Support Specialist (Karnataka)
🏢 Kyndryl
📍 Karnataka