AS400 Architect

Job description

EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential. We are looking for a seasoned AS/400 Architect to define the technical vision and architectural direction for the AI Tools team, shaping EPAM's in-house solution for IBM iSeries (AS/400) application reverse engineering, analysis, and modernization at an enterprise scale. Responsibilities • 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 Requirements • 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 We offer • Opportunity to work on technical challenges that may impact across geographies • Vast opportunities for self-development: online university, knowledge sharing opportunities globally, learning opportunities through external certifications • Opportunity to share your ideas on international platforms • Sponsored Tech Talks & Hackathons • Unlimited access to LinkedIn learning solutions • Possibility to relocate to any EPAM office for short and long-term projects • Focused individual development • Benefit package: • Health benefits • Retirement benefits • Paid time off • Flexible benefits • Forums to explore beyond work passion (CSR, photography, painting, sports, etc.)