Jacksson J.Principal Engineer
Skills
A Computer Science graduate with a strong technical background in High Platform languages, including Cobol Mainframe Batch, DB2, CICS, IMS, TELON, z/OS, TSO, ChangeMan, XPEDITER, JCL, MFE, and RDZ. This individual has accumulated 15 years of professional experience in the field.
From 2009 to 2016, the focus was on the analysis, development, and testing of COBOL programs specifically for banking projects. Between 2016 and 2021, responsibilities included working on AMS services utilizing ITIL methodology to manage incidents, service requests, problems, and changes, along with analysis, development, and testing of COBOL programs for automotive segment projects.
From April 2021 to May 2022, served as a quality analyst for banking client projects, employing contemporary tools for monitoring applications that integrate Low Platform with High Platform (Mainframe). Since June 2022, responsibilities have expanded to encompass both High Platform (Mainframe) work and a role as a Site Reliability Engineer (SRE), focusing on the monitoring of modernized environments through the development of dashboards and alerts.
Site Reliability Engineer (SRE) | Mainframe
5/1/2023 - Present
Developed expertise in customer service within the financial sector. Monitored the implementation of mobile projects in the business check front. Conducted in-depth analysis of CICS transactions on the Mainframe, and performed analysis and verification of logs from hybrid application microservices. Utilized Dynatrace for monitoring hybrid applications across Mainframe, IBM Cloud, and Microsoft Azure. Created dashboards and alerts using Dynatrace, and used JIRA and Confluence for project management and documentation.Site Reliability Engineer (SRE) | Mainframe
6/1/2022 - 4/1/2023
Achieved comprehensive expertise in customer service for a major financial institution, focusing on the implementation of mobile projects in the Channel Front involving features such as Login, Pix, Token generation, Boleto, and Statement functionalities. Conducted in-depth analysis of IMS transactions on Mainframe systems, specifically for the projects related to Login, Pix, Token, Boleto, and Statement. Demonstrated proficiency in analyzing and verifying logs from modernized applications hosted on AWS. Applied advanced monitoring and surveillance techniques for API interfaces and hybrid applications (Mainframe and AWS) using Splunk. Developed and managed detailed dashboards and alerts utilizing CloudWatch, Splunk, Grafana, and AppDynamics. Utilized collaborative tools such as JIRA, Confluence, and GitHub to ensure efficient project management and code maintenance.Mainframe Test/QA Analyst
4/1/2021 - 5/1/2022
Managed customer service for a financial institution, focusing on vehicle financing projects leveraging the SCRUM process. Developed and tested solutions using Cobol Mainframe Batch, DB2, Online (IMS-DC), VSAM, and JCL languages within the TSO & ISPF tool environment. Cataloged and versioned programs through TSO ChangeMan, ensuring rigorous quality control. Established a homologation environment with data closely mirroring production conditions. Conducted detailed analysis and produced flowcharts via Draw.io, and generated scripts using SQL for direct data manipulation within the mainframe DB2 database.
Tested API interfaces using POSTMAN and INSOMNIA, cataloged by SWAGGER, and closely monitored implementation in the vehicle financing domain through MAINVIEW and Splunk. Created evidence reports via NEWMAN, alongside crafting dashboards and alerts using Splunk. Utilized project management and collaboration tools such as JIRA, Confluence, and GitHub to maintain seamless workflow and documentation.Senior Cobol Mainframe Developer Analyst
2/2/2016 - 3/1/2021
Handled customer service operations for a major automobile company in Brazil, focusing on incident management, service requests, problem resolution, and change management through the ITIL methodology. Generated detailed proposals for new projects to address client-requested improvements, often identifying continuous faults and problems through ITIL processes. Applied the SCRUM process for analysis, development, and testing of programs.
Leveraged technical expertise in Cobol Mainframe Batch, DB2, Online (Telon/IMS-DC), VSAM, and JCL languages, utilizing the TSO & ISPF tool for efficient project execution. Demonstrated proficiency in debugging and identifying program failures using XPEDITER. Managed the cataloging and versioning of programs through TSO PROBA, ensuring organized and retrievable code archives.Mid-Level Cobol Mainframe Developer Analyst
3/2/2015 - 1/1/2016
Developed expertise in customer service and support for the Consignment project, specializing in mainframe systems. Demonstrated capabilities in the analysis, development, and testing of programs utilizing Cobol Mainframe Batch, DB2, and Online (CICS/IMS-DC/Screen/XML). Mastered VSAM and JCL languages, deploying the Mainframe Express Enterprise Edition tool for various tasks. Engaged in the validation and standardization of source codes with Hexavision. Managed program cataloging and versioning through the IBM RDZ tool, ensuring robust version control and program integrity.Mid-Level Cobol Mainframe Developer Analyst
9/2/2014 - 12/2/2014
Analyzed, developed, and tested programs through the software factory process adhering to CMMI Level 3 and ISO 9001 standards. Utilized Cobol Mainframe Batch, DB2, Online (CICS/IMS-DC/Screen/XML), VSAM, and JCL languages with the TSO & ISPF tool. Handled program cataloging and versioning using TSO ChangeMan. Documented the software development process using PowerDesigner.Mid-Level Cobol Mainframe Developer Analyst
5/2/2009 - 2/2/2014
Analyzed, developed, and tested programs through the software factory process with CMMI level 3 and ISO 9001 standards. Utilized Cobol Mainframe Batch languages, DB2, Online (Cics/IMS-DC/Screen/XML), VSAM, and JCL with the TSO & ISPF tool. Managed cataloging and versioning of programs using TSO ChangeMan. Documented the software development process using PowerDesigner, ensuring consistent and thorough documentation practices.
Computer Science at UniFil - Philadelphia University Center
2008 - 2011Mainframe Cobol Course with DB2, CICS, and Programming Logic with a total workload of 320 hours at FTI Technology
2009 - 2009
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