Infrastructure Engineer II-Mainframe Network

With your expertise in delivering infrastructure solutions, you are a top-performer in your field. Come on board as a highly appreciated member of a winning team.

• Plan, design, install, configure, and support a highly resilient and stable mainframe network infrastructure.
• Drive automation of mainframe network engineering tasks using scripting and workflow-based approaches where feasible.
• Perform mainframe network product installations, customizations, and evaluations.
• Define, maintain, and modify existing z/Series network products.
• Manage and support transmission products including FTPs (SSL), sFTP (SSH), and Connect:Direct Secure (NDM).
• Manage and support session manager applications such as TPX and Supersession.
• Develop mainframe network toolkits leveraging NetMaster, NetView, REXX, and CLISTs.
• Maintain mainframe network components including TCP/IP (DVIPA/DDVIPA), IPSEC, IPFILTER, IDS, Enterprise Extender (EE), SNA, VTAM, APPN, and OSA connectivity to the core.
• Provide logical connectivity between applications and mainframe subsystems.
• Perform performance tuning and develop/maintain operational procedures and runbooks.
• Support TCP/IP encryption methods (IPSEC, AT-TLS, TLS) and monitor protocols/ciphers aligned to company policies.

Required qualifications, capabilities, and skills

• Formal training or certification on infrastructure disciplines concepts and 2+ years applied experience
• Strong understanding of mainframe networking concepts and technologies including VTAM, TCP/IP, SNA, APPN, and OSA.
• Working knowledge of security and encryption methods including IP Security/IPSEC, AT-TLS, TLS, and related controls.
• Experience with mainframe transmission products and secure file transfer (FTPs over SSL, sFTP over SSH, Connect:Direct Secure/NDM).
• Experience supporting session management tools (e.g., TPX, Supersession).
• Proficiency with z/OS operational tooling and constructs including JCL, SDSF, VSAM, SMP/E, IBM utilities, and Unix System Services.
• Experience working in Parallel Sysplex environments.
• Hands-on skills with network tools such as NDM, TPX, NetView, and NetMaster.
• Experience with automation/scripting using one or more of JCL, REXX, Unix shell scripting, or zOSMF workflows.
• Knowledge of network monitoring and diagnostic tools (e.g., Omegamon, Mainview, tracing, sniffers).

• Build RESTful APIs using Swagger or similar frameworks.
• Apply intermediate understanding of business technology drivers to inform architecture design decisions.
• Demonstrate knowledge of an infrastructure technology plus basic programming languages or database management systems.
• Deliver creative solutions through continuous improvement and automation.