Technical Subject Matter Expert (SME) -ACI Host Link

Hiring The Technical SME for ACI Host Link
Location: Riyadh

Role Overview:

The Technical SME for ACI Host Link will be responsible for configuring, maintaining, and supporting the ACI Host Link system and its integration with Base24 Classic and Base24 EPS environments. The role demands in-depth technical expertise across COBOL, CICS, ISO protocols, and IBM zOS.

Key Responsibilities:

• Configure and manage ACI Host Link, including ODB, ISFF, and OMT maintenance window workflows.
  

• Debug and support backend COBOL programs provided by vendors.
  

• Expertly handle the main listener program (ISF6606), which is complex and critical to operations.
  

• Provide advanced debugging and programming within COBOL/CICS in IBM zOS environments.
  

• Use and troubleshoot the CICS TCPIP API for effective communication and issue resolution.
  

• Ensure seamless operation and support for TCPIP transport layers.
  

• Interpret and work with financial ISO protocols, particularly ISO8583 formats (1987 and 1993).
  

• Analyze how ISO protocols are implemented in Base24 Classic and Base24 EPS.
  

• Conduct integration and setup of ACI Host Link with Base24 systems.
  

• Perform system administration tasks for CICS.
  

• Read and make minor modifications to client-side code, including recompilation and integration with ACI Host Link.
  

• Generate statistics and reporting related to ACI Host Link performance.
  

• Navigate and utilize all user interfaces and configuration screens within ACI Host Link.
  

• Manage FHM transaction interfaces between ACI Host Link and Base24 platforms.
  

• Execute performance and stress testing through ACI Host Link.
  

• Carry out regression, functional, system, and end-to-end testing, with thorough documentation.
  

• Verify internal and external ISO messages, and analyze switch messages in ISO8583 format.
  

• Collaborate with host, middleware, and business teams to ensure system alignment.
  

• Demonstrate experience in QA methodologies, including test planning and scenario creation.
  

• Possess working knowledge of Virtual CICS on zOS.
  

Understand Base24 basics and hold professional experience in ACI Host Link operations.