Mainframe Engineer

TEKsystems • Dearborn, MI

1d • $55 - $55 • Remote

About The Position

We are seeking a highly skilled z/OS Network Systems Programmer to manage, support, and optimize our mainframe networking environment. The successful candidate will provide in-depth technical expertise in IBM z/OS Communications Server, encompassing both legacy SNA/APPN architectures and modern TCP/IP protocols. This role requires a proactive problem-solver capable of performing deep-packet analysis, managing secure file transfers, and supporting enterprise-wide printing solutions.

Requirements

• Minimum 5 years of experience in IBM z/OS Communications Server, with specific expertise in:
• SNA, VTAM, and APPN/Enterprise Extender.
• TCP/IP stack configuration and z/OS Policy Agent.
• Proficiency in mainframe environments: TSO/ISPF, JCL, SDSF (JES2/JES3), and OMVS.
• Experience with distributed tools such as PuTTY, WinSCP, and the Microsoft Office Suite.

Nice To Haves

• Familiarity with ServiceNow for IT Service Management (ITSM) is highly desirable.

Responsibilities

• Perform advanced network problem analysis utilizing sniffer traces and TCP/IP packet captures.
• Execute and analyze VTAM network traces to isolate and resolve complex issues within the SNA/APPN environment.
• Provide high-level support for Enterprise Extender (EE) protocols to ensure seamless SNA-over-IP communication.
• Customize and maintain the z/OS Policy Agent (Pagent) to manage network policies and AT-TLS rules.
• Manage secure communication protocols, including SSH and SSL/TLS, ensuring robust data encryption.
• Administer Digital Certificates and Keyrings to maintain mainframe security integrity.
• Support secure file transfer services, including SFTP, FTPS, and Connect:Direct.
• Configure and support IBM 3270 Emulators, including PCOMM, Host On-Demand (HOD), and HACP-EE.
• Customize, and maintain the VPS Enterprise Printing System.
• Manage printer protocols, specifically PCL and PostScript, to ensure reliable output services.
• Generate reports based on SMF records using REXX, CLIST, and Java.
• Utilize IBM utilities, Syncsort, and SMF (System Management Facilities) records for performance monitoring, reporting, and capacity planning.

Benefits

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

What This Job Offers

• Career Level: Mid Level
• Number of Employees: 501-1,000 employees