Mainframe Network Engineer - MNE 1009 DP#10

We are seeking an experienced Mainframe Network Engineer to design, configure, implement, and support network connectivity within IBM mainframe environments. This role ensures reliable, secure, and high-performance communication between mainframe systems, distributed platforms, external partners, and enterprise applications., The engineer will work with technologies such as TCP/IP, VTAM, SNA, Enterprise Extender, TN3270, FTP, and network security controls to support critical production workloads in large enterprise environments., Mainframe Network Administration

• Install, configure, and maintain IBM z/OS Communications Server components.
• Configure, administer, and troubleshoot TCP/IP networking 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 troubleshoot session connectivity for end users and applications.

Network Connectivity and Support

• Ensure reliable communication between mainframe systems and distributed servers, external vendors, internal enterprise applications, and middleware platforms.
• Diagnose and resolve network connectivity issues involving IP routing, port communication, session failures, DNS resolution, and firewall restrictions.
• Support FTP, SFTP, and other secure file-transfer and data-exchange solutions.
• Investigate network performance issues and implement corrective measures to maintain system availability and reliability.
• Collaborate with infrastructure, application, and network teams to resolve cross-platform connectivity issues.

Network Security and Compliance

• Collaborate with network security teams to implement and maintain secure communication protocols.
• Ensure compliance with enterprise security policies, technical standards, and audit requirements.
• Support SSL/TLS certificate implementation and secure data-transmission practices.
• Assist with firewall rule validation, port usage reviews, and vulnerability remediation.
• Help identify and address network security risks affecting mainframe environments.

Disaster Recovery and Resilience

• Support network design, configuration, and recovery procedures for Disaster Recovery (DR) environments.
• Validate network connectivity and communication paths for failover systems and backup data centers.
• Participate in disaster recovery testing and business continuity exercises.
• Assist with troubleshooting and resolving network-related issues during failover and recovery activities.
• Help maintain network availability and resilience for critical mainframe workloads.

Key Technical Skills

• IBM z/OS Communications Server
• TCP/IP configuration and troubleshooting on z/OS
• VTAM administration and network definitions
• SNA and Enterprise Extender (EE)
• TN3270 connectivity and session troubleshooting
• FTP, SFTP, and secure file-transfer protocols
• IP routing, DNS, ports, and firewall connectivity
• SSL/TLS certificates and secure communication
• Disaster recovery and network resiliency
• Mainframe-to-distributed-system connectivity

Mainframe Computer, Network Architecture/Engineering, Work From Home, Network Connectivity, Enterprise Applications, Network Support, Network Architecture/Engineering, Mainframe Computer, IBM Mainframe, Network Design