Mainframe Network Engineer

Responsibilities Responsible for the design, configuration, implementation, and support of network connectivity for IBM mainframe environments. Ensure reliable, secure, and high-performing communication between mainframe systems, distributed platforms, external partners, and enterprise applications. Work on key technologies such as TCP/IP, VTAM, SNA, Enterprise Extender, TN3270, FTP, and network security controls, supporting critical production workloads in large enterprise environments. 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. Diagnose and resolve connectivity issues involving IP routing, Port communication, Session failures, DNS resolution, Firewall-related blocks. Work closely with network security teams to enforce secure communication protocols. Requirements Minimum 5+ years of experience 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. IBM mainframe or networking certifications are a plus Certifications & Qualifications IBM mainframe certification networking certification #J-18808-Ljbffr Jobtailor