Gustavo Islas

Independent freelance specialist with over twenty years of experience in mainframe environments using IBM OS/390, MVS/VM, and z/OS operating systems. My profile focuses on application development for the financial, government, and insurance sectors, utilizing COBOL74 and COBOL85 standards in TSO, for both batch and online processes in conversational and pseudo-conversational (transactional) modes, as well as IBM 3270 terminal emulation. I have used a wide range of development tools to deliver strategic business solutions, including TSO/ISPF, JCL, VSAM, COBOL, DB2, CICS, IMS-DB, IMS-DC, MQ, REXX, Easytrieve, CTRL+M, JES2, WLManager, SDSF, and SPUFI, among others. I have also participated in data migration projects that have resulted in reduced operating costs and improved efficiency. Currently, I am looking for a 100% remote (totally virtual) opportunity to continue learning and adding value to innovative companies in the banking, finance, and insurance sectors, committed to the quality of their IT services.