. **Responsibilities and Assignments** * Analyze and understand legacy COBOL applications, covering both batch and online environments; * Perform reverse engineering of legacy systems to identify business rules, end\-to\-end functional flows, and dependencies among programs and systems, supported by Artificial Intelligence tools; * Map and document COBOL programs, JCLs, copybooks, DB2 and VSAM data structures, as well as integrations based on files, services, and external systems; * Identify subprograms, reusable components, obsolete, redundant, or unused code, as well as critical points of functional and financial risk; * Navigate, analyze, and intervene in complex batch routines, including processing meshes, execution chains, and production abend diagnostics; * Extract, structure, and document business rules, including financial calculations, validations, and credit policies; * Participate in incremental modernization initiatives for critical systems, ensuring operational continuity, functional and accounting equivalence, and risk mitigation during transition; * Support legacy system modernization programs, contributing to the transformation of COBOL applications into a modern architecture based on Java and AWS Cloud. **Requirements and Qualifications** * Solid experience in mainframe environments; * Proficiency in COBOL (batch and online); * Experience with JCL; * Knowledge of DB2; * Experience with CICS; * Experience with VSAM files (KSDS, ESDS, and RRDS); * Consistent involvement in batch processing, including execution, monitoring, and troubleshooting; * Experience with complex processing meshes, using tools such as Control\-M, CA\-7, or similar; * Ability to analyze and resolve abends and production failures; * Experience diagnosing performance issues and processing inconsistencies; * Familiarity with mainframe code versioning tools, such as Changeman, Endevor, or equivalents; * Experience in large corporate environments, especially in the banking sector; * Knowledge of online applications, including CICS transactions, green screen systems, and services; * Experience with synchronous and asynchronous integrations; * Strong ability to read and interpret complex legacy code; * Experience identifying subprograms, copybooks, and shared structures; * Experience analyzing end\-to\-end flows involving both batch and online processing; * Experience in DB2 data modeling and analysis; * Knowledge of file\-based integrations; * Proven capability to perform functional and technical reverse engineering; * Knowledge of financial calculations, including interest, IOF, amortization, and debt renegotiation. Compass UOL is a global firm and part of the AI Revolution Company, together transforming organizations using Artificial Intelligence, Generative AI, and other of today’s most advanced technologies. We equip our team with proprietary and external AI\-driven tools to design and build digital\-native platforms, integrating cutting\-edge technologies and enabling companies to innovate, transform their businesses, and drive success in their markets. To achieve this, we attract and develop the best talent, creating opportunities that enhance people’s lives and highlight the positive impact of disruptive technologies. We empower borderless talent and promote knowledge and opportunities in the latest market trends, driving significant personal and professional growth. **Join us and be part of the AI\-driven revolution.**
João Silva
Indeed · HR
João Silva
Indeed · HR
