Mainframe Network Engineer

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., * 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

• 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)

Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. With more than 300 active clients, Genesis10 provides access to many of the Fortune 100 firms and a variety of mid-market organizations across the full spectrum of industry verticals.

For contract roles, Genesis10 offers the benefits listed below. If this is a perm-placement opportunity, our recruiter can talk you through the unique benefits offered for that particular client. Benefits of Working with Genesis10:

• Access to hundreds of clients, most who have been working with Genesis10 for 5-20+ years.
• The opportunity to have a career-home in Genesis10; many of our consultants have been working exclusively with Genesis10 for years.
• Access to an experienced, caring recruiting team (more than 7 years of experience, on average.)
• Behavioral Health Platform
• Medical, Dental, Vision
• Health Savings Account
• Voluntary Hospital Indemnity (Critical Illness & Accident), For multiple years running, Genesis10 has been recognized as a Top Staffing Firm in the U.S., as a Best Company for Work-Life Balance, as a Best Company for Career Growth, for Diversity, and for Leadership, amongst others. To learn more and to view all our available career opportunities, please visit us at our website.