Senior IBM Z/CICS Production Support Engineer

Tata Consultancy Services

Hong Kong

On-site

HKD 900,000 - 1,200,000

Full time

8 days ago

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Job summary

Tata Consultancy Services in Hong Kong leads critical IBM Z and CICS operations for APAC, delivering highly available mainframe services and robust disaster recovery. The role focuses on installation, customization and ongoing maintenance of IBM Z products, with strong emphasis on security, performance, and incident resolution.

Candidates should have hands-on CICS, z/OS, DB2 and MQ experience, and be able to work in a multicultural, agile environment.

Qualifications

University degree in Computer Science, Information Technology or a related discipline.
Strong proficiency in IBM Z mainframe system and middleware technologies, including CICS, z/OS, DB2 and MQ.
Hands‑on experience with product installation, customization and maintenance of CICS Transaction Server for z/OS and related CICS tools.
Knowledge of RACF security tools and performance monitoring using Omegamon, CICS Performance Analyzer, RMF and SMF.
Excellent problem determination skills, with the ability to detect, investigate and control processing anomalies or system errors.
English is required. Cantonese is preferred for local team communication. Mandarin is beneficial but not mandatory.
Sound analytical, communication and interpersonal skills; proactive, self‑motivated and able to work collaboratively in an agile, multicultural environment.
No regular shift requirement; participation in a rotational maintenance support arrangement is required.
Maintenance windows are typically Sunday 00:00–06:00, approximately once every 2 weeks on rotation, generally supported remotely with time‑off in lieu after overnight support.

Responsibilities

Handle product installation, customization and maintenance of IBM Z products and tools, including CICS Transaction Server for z/OS, z/OS Connect EE, CAFC, CICS JVM, CICS Performance Analyzer and CICS Configuration Manager.
Manage system performance, reliability and availability against service level agreements using tools such as Omegamon, CICS Performance Analyzer, MOI, Splunk and AppDynamics.
Determine and resolve issues across managed systems, including incident investigation, problem resolution and root‑cause analysis.
Work closely with global application teams to deliver projects, consultancy services and platform standardisation initiatives.
Provide operations support, including on‑call and after‑hours support during approved maintenance windows.
Automate operational processes, including CI/CD pipelines, system changes, housekeeping, monitoring, alerting, capacity management and capacity planning.
Ensure compliance with security standards and operational risk requirements.
Develop, manage and maintain comprehensive disaster recovery plans for all managed systems.
Create and maintain installation, configuration and administration documentation.