Unknown Company

Java Mainframe Developer (Chicago)

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chicago, il • Posted 2 days ago
Onsite Full Time nan

Job Description

We are seeking an experienced Mainframe Developer with 10+ years of experience in developing, maintaining, and supporting enterprise mainframe applications. The ideal candidate should have strong hands-on experience with COBOL, JCL, DB2, CICS, and VSAM and should be capable of analyzing business requirements and delivering reliable technical solutions in a mainframe environment.

Must-Have Skills

  • COBOL
  • JCL
  • DB2
  • CICS
  • VSAM
  • Mainframe Application Development
  • Batch Processing
  • Online Transaction Processing
  • SQL
  • Production Support
  • Requirement Analysis

Key Responsibilities

  • Develop, enhance, and maintain COBOL mainframe applications supporting critical business processes.
  • Design, develop, and optimize JCL jobs for batch processing and scheduling.
  • Develop and maintain DB2 database programs, including SQL queries, data retrieval, performance tuning, and optimization.
  • Develop and support CICS online programs for real-time transaction processing.
  • Work with VSAM files for data storage, access, and file management.
  • Analyze business and functional requirements and translate them into technical solutions.
  • Perform application debugging, troubleshooting, and root-cause analysis.
  • Optimize existing programs and batch processes for performance and reliability.
  • Participate in application testing, deployment, and production support activities.
  • Collaborate with business analysts, technical teams, and other stakeholders.
  • Prepare technical documentation and support knowledge-transfer activities.
  • Ensure developed solutions meet enterprise coding and quality standards.

Required Experience

  • 10+ years of experience in Mainframe development.
  • Strong hands-on experience with COBOL, JCL, DB2, CICS, and VSAM .
  • Strong SQL and database development experience.
  • Experience with both batch and online transaction processing .
  • Ability to understand business requirements and provide techno-functional solutions.
  • Strong troubleshooting and problem-solving skills.
  • Good communication and stakeholder collaboration skills.

Preferred / Additional Skills

  • Java
  • Spring Boot
  • Microservices
  • Kafka
  • Azure
  • Full Stack Java


Java Mainframe Developer (Chicago) in chicago at Unknown Company

This position is listed as full time and onsite.

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