CMChristian Jesus Rodriguez Martinez
@christianjesusrodrig
Senior COBOL developer specializing in IBM Mainframe z/OS and high-volume banking transaction systems.
MexicoWhat I'm looking for
I am a Senior COBOL Developer with over 13 years designing, developing, and testing mission-critical backend systems for banking and financial services. I specialize in IBM Mainframe z/OS, high-volume transactional processing, fraud prevention, regulatory compliance, and 24/7 production support, successfully integrating legacy COBOL platforms with modern service-oriented and distributed architectures.
I have delivered backend solutions across core banking, B2B integrations, and fraud-prevention initiatives, working with DB2, VSAM, IBM MQ, and web services while using DevOps and Agile practices. I consistently ensure high availability and operational stability in regulated environments and continuously enhance my skills in integration technologies and tooling.
Experience
Work history, roles, and key accomplishments
Senior COBOL Developer
Tata Consultancy Services
Jan 2024 - Dec 2024 (11 months)
Developed COBOL backend services for fraud detection and prevention on core banking systems, implementing business rules and transactional validations and collaborating with distributed teams for integrations.
Senior COBOL / Mainframe Developer
Cibernética en el Siglo XXI
Jan 2013 - Dec 2023 (10 years 11 months)
Developed and maintained core financial and credit systems on IBM z/OS, processing VSAM and DB2 transactions, providing 24/7 production support and leading modernization efforts to integrate mainframe systems with web services.
Senior COBOL Developer
Tata Consultancy Services
Jan 2025 - Present (1 year 1 month)
Designed, developed, and tested COBOL programs for secure B2B financial integrations on IBM z/OS, processing high-volume transactions and integrating mainframe systems with MQ and web services while providing production support.
Education
Degrees, certifications, and relevant coursework
Christian Jesus hasn't added their education
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Tech stack
Software and tools used professionally
Availability
Location
MexicoAuthorized to work in
Job categories
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