Note: The job is a remote job and is open to candidates in USA. Kyndryl designs, builds, manages, and modernizes mission-critical technology systems. The Mainframe Network Engineer designs, configures, implements, and supports secure network connectivity for IBM mainframe environments, including TCP/IP, VTAM, SNA, Enterprise Extender, TN3270, FTP, and network security controls. The role also supports connectivity troubleshooting, security compliance, disaster recovery, and business continuity activities.

Responsibilities

• Install, configure, and maintain z/OS Communications Server components
• Support and manage TCP/IP configuration on z/OS systems
• Maintain and troubleshoot VTAM definitions and network resources
• Configure and support Enterprise Extender (EE) and SNA connectivity where applicable
• Maintain TN3270 access and session-related connectivity for end users and applications
• Ensure stable communication between mainframe systems and:
• Distributed servers
• External vendors/partners
• Internal enterprise applications
• Middleware platforms
• Diagnose and resolve connectivity issues involving:
• IP routing
• Port communication
• Session failures
• DNS resolution
• Firewall-related blocks
• Support file transfer protocols such as FTP, SFTP, and other secure data exchange solutions
• Work closely with network security teams to enforce secure communication protocols
• Ensure compliance with enterprise security controls and audit requirements
• Support SSL/TLS certificate implementation and secure transmission standards
• Assist with firewall rule validation, port usage reviews, and vulnerability remediation
• Support network design and recovery procedures for Disaster Recovery (DR) environments
• Validate communication paths for failover systems and backup data centers
• Participate in DR tests and business continuity exercises
• Participate in on-call rotation with the engineering teams
• The ability to follow a project through to completion, and/or to work as part of a larger team to complete the components of a complex project

Skills

• Minimum 5+ years of experience in Typically in mainframe networking or z/OS communications support
• Familiarity with JCL, TSO/ISPF, SDSF
• Ability to analyze logs, traces, and dump information relevant to communications issues
• Solid knowledge and experience on TCP/IP on z/OS , VTAM, SNA / Enterprise Extender, TN3270, FTP / SFTP and TLS
• Experience in supporting transmission products such as Connect Direct
• The ability to work independently as well as part of a team
• Excellent troubleshooting and customer service skills
• The ability to follow a project through to completion, and/or to work as part of a larger team to complete the components of a complex project
• IBM mainframe or networking certifications are a plus

Benefits

• Employee learning programs with access to industry training and certifications, including Microsoft, Google, Amazon, Skillsoft, and many more.
• Company-wide volunteering and giving platform to donate, start fundraisers, volunteer, and search over 2 million non-profit organizations.
• Kyndryl Inclusion Networks, which provide employees with opportunities to find and provide support and advice.

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