Mainframe Network Engineer (Hybrid Role)

About the role

The Mainframe Network Engineer is responsible for the design, configuration, implementation, and support of network connectivity for IBM mainframe environments. This role ensures reliable, secure, and high-performing communication between mainframe systems, distributed platforms, external partners, and enterprise applications.

Responsibilities

• Mainframe Network Administration: 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.
• Network Connectivity & Support: 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.
• Security & Compliance: 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.
• Disaster Recovery & Resiliency: 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.

Requirements

• Minimum 5+ years of experience in mainframe networking or z/OS communications support.
• Familiarity with JCL, TSO/ISPF, SDSFA.
• 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.

Qualifications

• Customer-focused, prioritizing customer success in their work.
• Open and borderless, naturally inclusive in how you work with others.

Benefits

Includes medical and dental coverage, disability, retirement benefits, paid leave, and paid time off. The pay or salary range will not be below any applicable state, city or local minimum wage requirement. This position will be eligible for Kyndryl’s discretionary annual bonus program, based on performance and subject to the terms of Kyndryl’s applicable plans.

Pay

$63,840 to $121,440 based on a full-time schedule.

Schedule

3 days onsite per week, Phoenix Metro Area, Arizona.