Description: * Solid experience in COBOL development; * Experience with COBOL accessing DB2, VSAM, and sequential files; * Proficiency in JCL (Job Control Language); * Advanced knowledge of DB2, including modeling, advanced SQL, tuning, and performance analysis; * Knowledge of Mainframe environment (z/OS). Desirable Qualifications: * Experience with Adabas; * COBOL development with access to Adabas; * Knowledge of Natural is an additional advantage; * Experience in legacy system modernization or migration projects. * Develop, enhance, and maintain COBOL programs accessing DB2, VSAM, and sequential files; * Create, modify, and debug JCLs for executing routines in a Mainframe environment; * Perform technical analysis, diagnosis, and resolution of issues in legacy systems; * Optimize DB2 database queries and routines; * Participate in the full development lifecycle, including specification, coding, testing, and documentation; * Collaborate with multidisciplinary teams to ensure system stability and evolution; * Strong analytical skills and systemic vision; * Proactive problem-solving; * Good communication and collaborative teamwork; * Attention to detail and commitment to quality. 2512210202551875962