With around 8 years of professional expertise in mainframe technologies within the banking and healthcare domains, I have developed, implemented, deployed, and maintained robust mainframe applications. My proficiency spans mainframe technologies such as COBOL, JCL, VSAM, DB2, REXX, ASSEMBLER, and CICS. Additionally, I am familiar with TSO/ISPF, FILEAID, SPUFI, ABENDAID, DFSORT, SFTP, FTP, and NDM transmission protocols. I am skilled in coding and implementing components in various technologies including RACF2, ACF2, NETVIEW, EASYTRIEVE, IOF, SERVICENOW, CHANGEMAN, INFOMAN (TSO-12), ENDEVOR, CA7, IDCAMS, IDMS, PROCs, SYNCSORT, MQ, OPC, and more. I also have a strong background in Mainframe/COBOL/HOGAN technology, JCL, CA7 scheduler, IMS DB/DC, DB2 DB, and other mainframe utilities.My expertise extends to the System Development Life Cycle (SDLC), where I am proficient in requirement collection, analysis, system design, data analysis and mapping, development, testing, and implementation. I am experienced in executing tasks in both Agile and Waterfall environments and have significant skills in data profiling, migration, integration, mapping, and business and data analysis. I collaborate effectively with peers in both business and technical domains to achieve optimal business process solutions aligned with corporate aims. My experience includes scheduling jobs, creating job flows, planning system and integration tests, coordinating with offshore teams, and reviewing deliverables. My strong programming and technical skills encompass system analysis, database design, coding, testing, performance fine-tuning, and troubleshooting.I am proficient in creating high-quality documentation, including business capability models, requirements documents, technical writing, business use cases, software requirements specifications, report specifications, screen and interface designs, user acceptance test plans, and training manuals/user guides. My experience also includes feasibility and risk analysis to identify business-important and high-risk areas of the application, as well as expertise in change management. In Quality Assurance, I have extensive expertise in QA testing and a thorough understanding of the System Testing Life Cycle, with exceptional proficiency in developing and testing mainframe and database systems. I am an excellent team player with strong analytical, technical, debugging, multitasking, and strategic planning skills, and I have managed large teams for crucial projects, training Juniors, and leading knowledge-sharing sessions.