We seek an experienced AS/400 Application Specialist (A4/B1) to guide the AI Tools team in building and maturing EPAMs in-house solution for IBM iSeries (AS/400) application reverse engineering, analysis, and modernization.

Key Responsibilities

Skills & Expertise: Demonstrate deep knowledge of IBM iSeries (AS/400) applications, architecture, data organization, coding patterns, development practices, tools, and infrastructure. Expertise should include RPG III, RPG IV, RPGLE, free-format RPG, CL/CLLE, COBOL, DDS, DSPFs, SQL, Db2 for i, libraries, objects, service programs, display files, printer files, physical and logical files, commitment control, journaling.

Database and SQL: Strong knowledge of Db2 for i, SQL-based application analysis, database relationships, physical and logical files, views, indexes, constraints, triggers, stored procedures, journaling, data quality, and performance considerations.

Technology Assessment: 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.

Reverse Engineering: Proven experience in analysing legacy IBM AS/400 applications, identifying dependencies and business rules, tracing data flows, documenting application behaviour, and assessing undocumented or complex codebases.

Modernization Knowledge: Solid understanding of IBM AS/400 modernization approaches, 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.

AI Tool Guidance: Work closely 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.

Delivery Support: Contribute to technical assessments, proofs of concept, solution demonstrations, effort estimation, project planning, risk identification, progress reporting, and executive-level presentations.

Stakeholder Management: Collaborate 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.

Governance & Risk: Ensure that the reverse-engineering and modernization solution complies with enterprise architecture standards, customer security policies, source-code handling requirements, data-protection controls, audit requirements, and applicable regulatory obligations.

Experience: 15+ years in enterprise midrange (iSeries or AS/400) technologies with 5+ years focused on application analysis and reverse engineering and modernization solutions.

📌 As400 Lead (Chennai)
🏢 EPAM Systems
📍 Chennai