AS400 Lead

Responsibilities

• Demonstrate deep expertise in IBM iSeries (AS/400) applications, architecture, data organization, coding patterns, development practices, tools, and infrastructure, including RPG III, RPG IV, RPGLE, free-format RPG, CL/CLLE, COBOL, DDS, DSPFs, SQL, Db2 for i, libraries, objects, service programs, display files, printer…
• Apply strong knowledge of Db2 for i and SQL-based application analysis, including database relationships, physical and logical files, views, indexes, constraints, triggers, stored procedures, journaling, data quality, and performance considerations
• Conduct application portfolio analysis and evaluate RPG, CL, COBOL, DDS, SQL, and Db2 for i coding patterns; identify redundant, unreachable, duplicated, obsolete, tightly coupled, and highly complex code
• Assess application quality, maintainability, performance, technical debt, modernization readiness, and potential risks
• Analyze legacy IBM AS/400 applications, identifying dependencies and business rules, tracing data flows, documenting application behavior, and assessing undocumented or complex codebases
• Drive modernization initiatives including RPG refactoring, fixed-format-to-free-format conversion, DDS-to-DDL conversion, Db2 modernization, API and web-service enablement, UI modernization, application decomposition, cloud integration, re-platforming, and application retirement
• Collaborate with the AI Tools team to define requirements, validate analysis logic, improve prompts and rules, and enhance the accuracy of AI-generated application documentation and code insights
• Guide the development of AI capabilities for program understanding, dependency discovery, business-rule extraction, data-flow analysis, impact analysis, code summarization, test-case generation, and modernization recommendations
• Contribute to technical assessments, proofs of concept, solution demonstrations, effort estimation, project planning, risk identification, progress reporting, and executive-level presentations
• Partner with customer IBM i SMEs, application owners, business analysts, modernization specialists, AI Tools team members, testing teams, cloud architects, and Technical Leadership across the client and EPAM organizations

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