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Mainframe Systems Engineer

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Myn

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Location:
South Africa , Johannesburg

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

We are seeking an experienced Mainframe Systems Engineer / Programmer to support and maintain our IBM z/OS environment within a banking environment. This role is responsible for system installation, maintenance, performance tuning, security compliance, and 24x7 production support, while enabling modern API integration through z/OS Connect.

Job Responsibility:

  • Administer and support z/OS (MVS/OS390) environments on IBM z14 / z16 hardware
  • Plan and implement OS upgrades, including z/OS 3.1
  • Install, maintain, and apply fixes (APARs/PTFs) using SMP/E
  • Implement and support z/OS Connect to enable RESTful APIs and JSON services
  • Manage system configurations through formal change control
  • Support and maintain core components including: JES2, z/OSMF, VTAM/TCPIP, TSO/ISPF/SDSF, RMF, RACF, HCD/IODF, Sysplex, TPX, TWS, CA, Compuware, and BMC performance tools
  • Perform performance monitoring, tuning, and capacity planning
  • Ensure compliance with banking security standards
  • Provide 24x7 production support and problem resolution
  • Maintain technical documentation

Requirements:

  • 5+ years of z/OS systems programming experience, preferably in financial services
  • Strong knowledge of z/OS installation, maintenance, performance tuning, and security (RACF)
  • Experience with SMP/E, Sysplex, RMF, and z/OS Connect
  • Ability to support mission-critical, high-availability environments
  • Strong analytical and problem-solving skills
  • Excellent documentation and communication skills
  • Ability to work in high-pressure production environments
  • Detail-oriented with strong change control discipline
  • Team-oriented with strong collaboration skills

Additional Information:

Job Posted:
February 14, 2026

Expiration:
March 11, 2026

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