AS400 Architect

We are looking for a seasoned AS/400 Architect to define the technical vision and architectural direction for the AI Tools team shaping EPAMs in-house solution for IBM iSeries (AS/400) application reverse engineering analysis and modernization at an enterprise scale.

• Define the architectural vision standards and technical roadmap for the IBM iSeries (AS/400) reverse-engineering and modernization solution
• Conduct application portfolio analysis to identify redundant unreachable duplicated obsolete tightly coupled and highly complex code and assess application quality maintainability performance technical debt modernization readiness and potential risks
• Analyze legacy IBM AS/400 applications identify dependencies and business rules trace data flows document application behavior and assess undocumented or complex codebases
• Drive IBM AS/400 modernization approaches including code refactoring format conversion database 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
• Architect 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 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

• 13 years of experience in enterprise midrange (iSeries or AS/400) technologies with 5 years focused on application analysis reverse engineering and modernization solutions
• Expertise in RPG III RPG IV and RPGLE including hands-on development maintenance and refactoring of large-scale legacy applications
• Proficiency in free-format RPG CL/CLLE and COBOL with the ability to analyze and convert fixed-format code to modern equivalents
• Skills in DDS DSPFs and SQL including designing interpreting and optimizing display files physical/logical files and complex queries
• Background in Db2 for i covering database design performance tuning journaling stored procedures triggers and DDS-to-DDL conversion
• Understanding of IBM i architecture including libraries objects service programs printer files commitment control and integrated file systems
• Knowledge of reverse engineering techniques for legacy AS/400 applications including dependency mapping business-rule extraction and data-flow tracing
• Familiarity with modernization strategies such as API enablement web-service integration UI modernization application decomposition cloud migration and re-platforming
• Competency in application portfolio assessment technical debt evaluation code quality analysis and modernization readiness reviews
• Capability to collaborate with AI Tools teams by defining requirements validating analysis logic refining prompts and improving AI-generated documentation and code insights
• Flexibility to support delivery activities including proofs of concept effort estimation project planning risk identification and executive-level presentations
• Showcase of strong stakeholder management skills to engage IBM i SMEs application owners business analysts cloud architects and technical leadership across client and internal organizations
• Qualifications in governance and compliance ensuring adherence to enterprise architecture standards security policies data-protection controls and regulatory obligations
• Proficiency in English at an Upper-Intermediate level (B2) or higher