Loading profile…
Cesar Rey
Looking for a jobMainframe Support L3 / COBOL Developer
Mainframe Support L3 / COBOL Developer at Stefanini on the CitiBanamex project, maintaining mission-critical banking systems.
MexicoMainframe Support L3 / COBOL Developer at Stefanini
Experience
Mainframe Support L3 / COBOL Developer
Provided L3 support and development for CitiBanamex project, performing root cause analysis, bug fixing, and COBOL modifications. Coordinated production releases via ServiceNow and managed version control in GitHub.
COBOLJCLCICSDB2VSAMIBM MQTSO ISPFServiceNowGitHubMainframeBatch ProcessingOLTP
COBOL Developer Divestiture
Developed and modified COBOL components and control scripts for client initiatives, implementing complex functional changes and optimizing data flows. Provided technical support during SIT/UAT testing phases.
COBOLJCLCICSDB2VSAMIBM MQTSO ISPFSITUATMainframe
Algorithm Developer & Researcher
Designed and implemented hard and fuzzy clustering algorithms in C# with parallel computing for massive data processing. Conducted numerical analysis and computational model testing.
C#Parallel ComputingOptimization AlgorithmsData StructuresNumerical Analysis
Education
CENIDET
Master of Science in Computer Science with focus on algorithm optimization.
UPEMOR
Bachelor of Science in Industrial Engineering.