COBOL/Java Developer – Senior

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 10,001+H1B SponsorCompany SiteLinkedIn

Location

Brazil

Posted

2 days ago

Salary

0

Seniority

Senior

PortugueseAWSCloudJava

Job Description

COBOL/Java Developer – Senior

Compass

• Perform analysis and gain a deep understanding of legacy COBOL applications, covering both batch and online environments; • Execute reverse engineering of legacy systems to identify business rules, end-to-end functional flows, and dependencies between programs and systems, with support from Artificial Intelligence tools; • Map and document COBOL programs, JCLs, copybooks, DB2 and VSAM data structures, as well as integrations based on files, services, and external systems; • Identify subprograms, reusable components, obsolete, redundant or unused code, and key points of functional and financial risk; • Navigate, analyze and work on complex batch processing routines, including processing workflows, execution chains and diagnosis of abends in production; • Extract, structure and document business rules, including financial calculations, validations and credit policies; • Participate in incremental modernization initiatives for critical systems, ensuring operational continuity, functional and accounting equivalence, and risk mitigation during transitions; • Support legacy system modernization programs, contributing to the transformation of COBOL applications into modern architectures based on Java and AWS Cloud.

Job Requirements

  • Proven experience in mainframe environments;
  • Strong proficiency in COBOL (batch and online);
  • Experience with JCL;
  • Knowledge of DB2;
  • Experience with CICS;
  • Experience working with VSAM files (KSDS, ESDS and RRDS);
  • Consistent experience in batch processing, including execution, monitoring and troubleshooting;
  • Experience with complex processing networks/flows using tools such as Control-M, CA-7 or similar;
  • Ability to analyze and resolve abends and production failures;
  • Experience diagnosing performance issues and processing inconsistencies;
  • Familiarity with mainframe code versioning tools such as Changeman, Endevor or equivalents;
  • Experience in large enterprise environments, especially within the banking sector;
  • Knowledge of online applications, including CICS transactions, screen-based systems (green screen) and services;
  • Experience with synchronous and asynchronous integrations;
  • Strong ability to read and interpret complex legacy code;
  • Experience identifying subprograms, copybooks and shared data structures;
  • Experience analyzing end-to-end flows involving both batch and online processing;
  • Experience in DB2 data modeling and analysis;
  • Knowledge of file-based integrations;
  • Proven ability to perform functional and technical reverse engineering;
  • Knowledge of financial calculations, including interest, IOF (financial transaction tax), amortization and debt renegotiation.

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