We are building an in-house IBM iSeries (AS/400) reverse-engineering and modernization solution and need a Lead AS400 Application Specialist to steer it. You will guide the AI Tools team in strengthening analysis logic and modernization recommendations across RPG, CL, COBOL, DDS, SQL, and Db2 for i. Apply now to help mature EPAM’s tooling and delivery outcomes

Responsibilities

- Show 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 files, physical and logical files, commitment control, and journaling
- Apply advanced Db2 for i and SQL-based application analysis, covering database relationships, physical and logical files, views, indexes, constraints, triggers, stored procedures, journaling, data quality, and performance considerations
- Perform application portfolio analysis and review RPG, CL, COBOL, DDS, SQL, and Db2 for i coding patterns; spot redundant, unreachable, duplicated, obsolete, tightly coupled, and highly complex code
- Evaluate application quality, maintainability, performance, technical debt, modernization readiness, and potential risks
- Analyze legacy IBM AS/400 applications to identify dependencies and business rules, trace data flows, document application behavior, and assess undocumented or complex codebases
- Lead modernization efforts 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 increase the accuracy of AI-generated application documentation and code insights
- Guide 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
- Ensure 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





Requirements

- Extensive experience with enterprise midrange iSeries or AS/400 technologies, including 5+ years focused on application analysis, reverse engineering, and modernization solutions (9+ years total)
- Expert-level knowledge of RPG III, RPG IV, and RPGLE
- Hands-on proficiency with free-format RPG, CL/CLLE, and COBOL
- Solid skills in DDS, DSPFs, and SQL
- Deep understanding of Db2 for i, including database design, performance tuning, and SQL-based application analysis
- Strong grasp of IBM iSeries (AS/400) architecture, libraries, objects, service programs, and file structures (physical, logical, display, printer)
- Proven ability to reverse engineer legacy AS/400 applications by tracing dependencies, business rules, and data flows
- Practical knowledge of modernization options such as RPG refactoring, fixed-format-to-free-format conversion, and DDS-to-DDL conversion
- Familiarity with API and web-service enablement, UI modernization, and cloud integration or re-platforming strategies
- Demonstrated collaboration skills with cross-functional and AI-focused teams to improve tooling precision and delivery results
- English proficiency at Upper-Intermediate (B2) or higher

We are building an in-house IBM iSeries (AS/400) reverse-engineering and modernization solution and need a Lead AS400 Application Specialist to steer it. You will guide the AI Tools team in strengthening analysis logic and modernization recommendations across RPG, CL, COBOL, DDS, SQL, and Db2 for i. Apply now to help mature EPAM’s tooling and delivery outcomes

Responsibilities

- Show 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 files, physical and logical files, commitment control, and journaling
- Apply advanced Db2 for i and SQL-based application analysis, covering database relationships, physical and logical files, views, indexes, constraints, triggers, stored procedures, journaling, data quality, and performance considerations
- Perform application portfolio analysis and review RPG, CL, COBOL, DDS, SQL, and Db2 for i coding patterns; spot redundant, unreachable, duplicated, obsolete, tightly coupled, and highly complex code
- Evaluate application quality, maintainability, performance, technical debt,



modernization readiness, and potential risks
- Analyze legacy IBM AS/400 applications to identify dependencies and business rules, trace data flows, document application behavior, and assess undocumented or complex codebases
- Lead modernization efforts 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 increase the accuracy of AI-generated application documentation and code insights
- Guide 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
- Ensure 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

Requirements

- Extensive experience with enterprise midrange iSeries or AS/400 technologies, including 5+ years focused on application analysis, reverse engineering, and modernization solutions (9+ years total)
- Expert-level knowledge of RPG III, RPG IV, and RPGLE
- Hands-on proficiency with free-format RPG, CL/CLLE, and COBOL
- Solid skills in DDS, DSPFs, and SQL
- Deep understanding of Db2 for i, including database design, performance tuning, and SQL-based application analysis
- Solid grasp of IBM iSeries (AS/400) architecture, libraries, objects, service programs, and file structures (physical, logical, display, printer)
- Proven ability to reverse engineer legacy AS/400 applications by tracing dependencies, business rules, and data flows
- Practical knowledge of modernization options such as RPG refactoring, fixed-format-to-free-format conversion, and DDS-to-DDL conversion
- Familiarity with API and web-service enablement, UI modernization, and cloud integration or re-platforming strategies
- Demonstrated collaboration skills with cross-functional and AI-focused teams to improve tooling precision and delivery results
- English proficiency at Upper-Intermediate (B2) or higher

📌 LeadApplication Specialist (Bengaluru)
🏢 EPAM Systems
📍 Bengaluru