Key Responsibilities· Architecture and Engineering: Design, implement, and maintain complex IBM IMS DB/DC environments, control regions, message processing regions (MPR), batch message processing (BMP), and supporting z/OS infrastructure to meet rigorous enterprise availability (99.999%) and performance standards.

· Performance Tuning and Diagnostics: Monitor IMS system performance using tools such as OMEGAMON for IMS, SYSVIEW, and IMS Performance Analyzer. Analyze system dumps, trace logs, log records (such as 01/02 log records), and abends, and perform deep-dive troubleshooting to resolve complex database deadlocks, resource contention, and storage bottlenecks.

· Security and Compliance: Ensure all IMS configurations and database access controls comply with strict financial regulatory standards and corporate security policies, collaborating with RACF/ACF2 administrators for secure resource definition, PSB/DBD security, and user access control. Proactively identify and remediate security vulnerabilities in the IMS environment.

· Integration and Connectivity: Manage and optimize connectivity between IMS and other enterprise tiers, including DB2, CICS, IBM MQ, TCP/IP, and modern web services/APIs for cross-platform channel integration.

· Upgrades and Maintenance: Plan and execute z/OS and IMS software maintenance, PTF implementations, database reorganizations (REORG), migrations, and regular health checks with minimal disruption to production workloads.

· L3 Support and Mentorship: Act as the ultimate escalation point (Level 3) for major incident management, providing root-cause analysis (RCA) and sharing domain knowledge with junior systems programmers and operations teams. Foster a collaborative, inclusive team culture and actively mentor team members to build technical depth across the group.

· Stakeholder and Vendor Coordination: Liaise with application development teams, business stakeholders, and third-party software vendors to coordinate complex change implementations, resolve interdependencies,



and ensure alignment with business priorities.

Qualifications and Technical Competencies· Experience: Minimum of 8–10+ years of hands-on experience in IBM Mainframe systems programming, with a deep, specialized focus on IBM IMS DB/DC administration, definition, and tuning in a large-scale enterprise environment. Financial services experience is preferred but not mandatory; experience in other high-volume transaction processing industries is also valued.

· Core Technical Skills:

o Expert-level knowledge of IMS control blocks, DBD, PSB, and ACB generation, DBRC (Database Recovery Control), and IMSplex management.

o Strong proficiency in z/OS operating system commands, JCL, SMP/E, RACF, and utilities (e.g., DFSDNTX0, Image Copy, Database Reorganization).

o Proven track record in analyzing dump data (IPCS, IMS dumps), log records, and resolving complex lock contentions or database corruption issues.

o Experience integrating IMS with DB2, IBM MQ, and modern API/REST interfaces.

o Hands-on experience with mainframe tools such as OMEGAMON, SYSVIEW, IMS Performance Analyzer, and File Manager for IMS.

o Familiarity with application programming languages and interfaces (COBOL, PL/I, DL/I, SQL) to facilitate effective troubleshooting and collaboration with development teams.

o Working knowledge of DevOps toolchains (GitHub, Jenkins) and Agile practices (Scrum, JIRA, Confluence) is preferred.

o Experience with disaster recovery planning, IMS database recovery procedures, testing, and execution for z/OS environments.

· Soft Skills:

o Exceptional problem-solving and analytical capabilities under high-pressure incident scenarios.

o Solid communication skills with the ability to articulate technical risks clearly to senior stakeholders and business sponsors.

o Proven ability to coordinate across cross-functional teams, including application developers, DBAs, security, and external vendors.

o Proactive mindset, identifying systemic issues that hinder team performance and developing practical solutions.

- o Commitment to fostering an inclusive, knowledge-sharing team culture and mentoring junior engineers.

📌 IBM IMS Expert / Mainframe Systems Architect (Narsingi)
🏢 Lavu Tech Solutions Sdn Bhd
📍 Narsingi