Network / System Engineer

MSP•Chandler, AZ

4h•Hybrid

About The Position

Genesis10 is seeking a Mainframe Network Engineer for a hybrid position with a Global Financial Institution. This role involves configuring and maintaining z/OS Communications Server (VTAM, TCP/IP) to support mission-critical banking workloads. The ideal candidate will engineer high-availability designs, implement robust security configurations, and leverage automation for proactive monitoring and recovery in a large-scale Parallel Sysplex environment. This position requires a hybrid schedule with a minimum of 3 days per week onsite.

Requirements

10+ years of experience in z/OS Communications Server (VTAM, TCP/IP)
Deep expertise in TCP/IP, SNA, VTAM, enterprise routing, and DNS
Hands-on experience with Policy Agent (AT-TLS, IPSec)
Hands-on experience with secure file transfer (Connect: Direct, SFTP, FTPS)
Hands-on experience with NetView or equivalent monitoring tools
Strong troubleshooting skills in high-volume, production environments
Experience supporting Parallel Sysplex architectures (DVIPA/Sysplex Distributor)

Responsibilities

Configure and maintain z/OS Communications Server (VTAM, TCP/IP)
Engineer TCP/IP stacks, OSA interfaces, routing, VIPA/DVIPA, and Sysplex Distributor
Support SNA/APPN/Enterprise Extender (EE) for legacy and hybrid banking applications
Design and support TN3270 connectivity for internal/external users and vendor integrations
Implement and manage AT-TLS, IPSec, and Policy Agent (PAGENT) configurations for encrypted communications
Administer digital certificates, SAF keyrings, and encryption protocols (SSL/TLS, SSH)
Enforce network segmentation, access controls, and secure file transfer standards (SFTP, FTPS, Connect: Direct)
Engineer high-availability designs using Sysplex technologies, DVIPA, and dynamic routing
Support disaster recovery (DR) exercises, failover testing, and continuity planning
Leverage NetView, OMEGAMON, and automation tooling for proactive monitoring and recovery
Perform deep-dive analysis using packet traces, TCP/IP traces, VTAM traces, and IPCS diagnostics
Monitor and optimize network throughput, latency, and connection scaling for peak banking workloads