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Senior IBM i / AS400 Specialist – Core Modernization
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JOB DESCRIPTION
Shift Timing : 12 PM – 10PM Role Summary You will act as the execution arm of the onshore IBM i lead for a core modernization initiative. Your role is to rapidly absorb system knowledge and take ownership of AS400 system analysis, documentation, and test enablement so the onshore lead can focus on architecture, client-facing work and other BAU activities. This is a deep IBM i role focused on COBOL systems. Knowledge of Python is a must. No cloud or DevOps responsibilities. Core Responsibilities • Analyze DB2 for i schemas, files, and data relationships • Trace end-to-end flows across Policy, Transactions, and Line of Business processing • Map program dependencies, batch jobs, and job flows • Reverse engineer COBOL programs to extract and validate business logic • Produce structured documentation based on actual system behavior • Create and manage test environments on IBM i for QA and UAT • Design and generate realistic test data aligned with business scenarios • Support QA and UAT teams by ensuring environment stability and data readiness • Ensure test scenarios reflect real production logic and edge cases • Take over day-to-day system analysis tasks from the onshore SME • Validate findings with the onshore SME and iterate quickly • Prepare outputs that enable downstream integration and modernization teams • Redesign core processing to support modernization efforts Must-Have Technical Skills • 12+ years hands-on IBM i / AS400 experience • Deep expertise in COBOL and Python on IBM i • Strong DB2 for i knowledge including file structures, joins, and performance tuning • Strong SQL skills in IBM i environments • Experience working with batch jobs, job queues, and scheduling • Experience creating and managing test environments on AS400 • Experience generating and validating test data for QA and UAT • Ability to navigate and understand large legacy codebases Communication Requirement (Non-Negotiable) • Strong spoken and written English • Ability to clearly explain system behavior based on code analysis • Proactive communication with onshore SME during overlap hours Operating Model • Daily coordination with onshore SME (minimum 4-hour overlap) • Clearly defined work packets transitioned from onshore to offshore • Continuous feedback loop to validate understanding and outputs What This Role Is • A hands-on IBM i specialist role • Focused on execution and system understanding • A force multiplier for the onshore SME • Expected to take ownership quickly What This Role Is Not • Not a DevOps, cloud, or Kubernetes role • Not a generic backend developer role • Not a passive shadow role • Not a QA engineer role (test support is part of system enablement, not ownership of QA) 30-60-90 Day Expectations First 30 Days • Understand system structure, COBOL programs, and DB2 schema • Begin documenting key flows (Policy or Transaction level) • Set up initial test environment with guidance • Start generating basic test data 60 Days • Independently analyze and document multiple program flows • Take over a defined portion of analysis workload • Create stable QA/UAT environments • Produce structured and reusable test datasets 90 Days • Own end-to-end analysis for assigned modules • Fully manage test environment readiness for QA/UAT cycles • Reduce dependency on onshore SME significantly • Deliver outputs usable by integration and modernization teams
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