Mainframe Network Engineer - 26-13418
Compu-Vision - South
Job Description
Job Description
Mainframe Network Engineer
Duration: 6–12 Months Contract-to-Hire
Work Location: Hybrid – 3 Days Onsite / 2 Days Work From Home
Locations:
- Phoenix, AZ
- Plano, TX
- Charlotte, NC
- Richmond, VA
- Jacksonville, FL
- Pennington, NJ
- Chicago, IL
The Mainframe Network Engineer is responsible for designing, configuring, implementing, and supporting network connectivity within IBM mainframe environments.
This role ensures reliable, secure, and high-performing communication between mainframe systems, distributed platforms, external partners, and enterprise applications. The engineer will work with technologies including TCP/IP, VTAM, SNA, Enterprise Extender, TN3270, FTP, and network security controls , supporting critical production workloads within large enterprise environments.
Key Responsibilities Mainframe Network Administration- Install, configure, maintain, and support z/OS Communications Server components.
- Configure and manage TCP/IP environments on z/OS systems.
- Maintain and troubleshoot VTAM definitions and network resources .
- Configure and support Enterprise Extender (EE) connectivity.
- Support SNA connectivity where applicable.
- Maintain TN3270 access and session connectivity for end users and applications.
- Troubleshoot mainframe network configuration and connectivity issues.
- Perform configuration changes and maintenance while minimizing impact to production workloads.
- Ensure reliable communication between mainframe environments and:
- Distributed servers
- External vendors and business partners
- Internal enterprise applications
- Middleware platforms
- Diagnose and resolve connectivity issues involving:
- IP routing
- Port communication
- Session failures
- DNS resolution
- Firewall-related blocks
- Troubleshoot network communication between mainframe and distributed environments.
- Support file-transfer technologies, including:
- FTP
- SFTP
- Other secure data exchange solutions
- Collaborate with infrastructure, application, middleware, and network teams to resolve complex connectivity issues.
- Monitor network performance and availability and take corrective action when required.
- Partner with network and security teams to implement secure communication protocols.
- Ensure mainframe network configurations comply with enterprise security standards and controls.
- Support security and audit requirements related to mainframe network connectivity.
- Implement and support SSL/TLS certificates and secure transmission standards.
- Assist with firewall rule validation and port-usage reviews.
- Identify and support remediation of network-related vulnerabilities.
- Ensure network configurations follow established security and compliance requirements.
- Support network architecture and recovery procedures for Disaster Recovery (DR) environments.
- Validate communication paths between production, DR, and backup environments.
- Test network connectivity and failover capabilities for recovery systems.
- Participate in DR tests and business continuity exercises.
- Identify potential network resiliency issues and recommend improvements.
- Support recovery procedures to ensure critical mainframe applications remain available during outages or failover events.
- IBM z/OS
- z/OS Communications Server
- TCP/IP
- VTAM
- SNA
- Enterprise Extender (EE)
- TN3270
- FTP
- SFTP
- DNS
- IP Routing
- Firewalls
- SSL/TLS
- Network Security
- Disaster Recovery / Business Continuity
Vacancy posted 2 days ago
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