Mainframe Systems Engineer (z/OS & Networking)

Mainframe Systems Engineer (z/OS & Networking) Location - 100% Remote - ability for hybrid in specific locations Terms - Direct Hire / Permanent Job Description: The Mainframe Systems Engineer installs and maintains mainframe operating systems ensuring the stability, performance and security of our mainframe environment while driving innovation and continuous improvement.

Primary Responsibilities

• Evaluates system specifications, input/output processes, and working parameters for hardware/software compatibility
• Troubleshoots and resolves complex technical issues related to mainframe systems and applications
• Administers, configures, and maintains mainframe systems, including hardware, operating systems, and software components
• Maintains operational effectiveness and efficiency by monitoring, evaluating, and adjusting mainframe operating systems
• Maintains quality service by establishing and enforcing organization standards
• Maintains installation records by documenting system configurations, procedures, and best practices
• Resolves problems by determining cause, providing technical assistance to applications and other support staff
• Develops and implements backup and disaster recovery strategies to ensure business continuity
• Covers on call 24x7 on a rotating basis for problem resolution and SEV1 incidents
• Ensures compliance with risk management programs, rules and regulations, and cybersecurity practices; identifies opportunities for and supports process improvements; applies disciplined change management practices

Requirements

• Bachelor's degree in Computer Science, Business, or a related field and six (6) years of mainframe infrastructure technical software and hardware analysis, programming, and installation experience
• Or High School Diploma or GED with ten (10) years of experience of mainframe infrastructure technical software and hardware analysis, programming, and installation
• Experience in installation and support of Mainframe system products including ZOS, CICS, MQ, DB2, Storage, Automation, ZLINUX or Networking
• Experience in problem determination, installation and support of mainframe products, disaster recovery experience and knowledge, and performance and tuning experience
• Experience in opening, managing, solving, and closing problems with vendor support centers

Skills and Competencies

• Ability to interpret and ensure compliance with applicable rules, regulations, and industry guidance

• Ability to work in a team environment when applicable

• Ability to work under limited guidance

• Ability to work under pressure and meet deadlines

• Excellent problem solving and trouble shooting skills

• Strong communication and collaboration abilities

• Strong understanding of mainframe hardware

• Basic Networking Knowledge

  • TCPIP
    • IP V4 addressing, subnetting, utilities like traceroute, ping, etc.
    • Routing protocols (OSPF and static routes in our case)
    • Content delivery, load balancers
    • DNS basic knowledge: forward/reverse lookup, resolvers, DNS caching/time to live
    • FTP/FTPS/SFTP/SSH
  • VTAM
    • Basic configuration: Major nodes, application definitions, Enterprise Extender
  • Basic Unix knowledge
    • File structure
    • Basic commands: ls, cd, chmod, etc.

• Basic z/OS knowledge

  • TSO, ISPF,JCL, job submission, etc.

• Security

  • TLS sessions
  • Certificate chains, keyrings

• Nice to have:

  • z/OS policy agent (PAGENT)
  • ZOSMF network configuration assistant
  • Managed file transfer applications such as Connect Direct
  • Mainframe print delivery (Infoprint)
  • Hypersockets and Shared Memory communication
  • Service Now experience