Hiring,
Greetings from Modern Agile Technologies.
Position:Mainframe Network Engineer
Location: Candidates must be on site 3 days /week in the Phoenix, AZ metro area. Other approved locations are Chandler, AZ, / Plano, TX / Charlotte, NC / / Jersey City, NJ
Type: Contract (W2 Only)
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. The engineer will 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.
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.
