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Mainframe Application Developer Lead
Mainframe Application Developer LeadVensoft Inc • Tampa, FL, United States
Mainframe Application Developer Lead

Mainframe Application Developer Lead

Vensoft Inc • Tampa, FL, United States
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Job Summary (Mainframe Application Developer / Solution Architect - L3 Support Tech Lead)

  • Lead Tier 3 mainframe application support for multiple telecom OSS systems (network planning, provisioning, dispatch, inventory, maintenance).
  • Ensure 24 / 7 application stability, addressing production issues and system performance.
  • Develop and maintain code in PL / I, Assembler, COBOL, SAS, REXX, CLIST, and JCL.
  • Implement enhancements, bug fixes, and code vulnerability remediations.
  • Perform platform upgrades (z / OS, DB2, IMS, SAS, Endevor) and support cross-team initiatives.
  • Debug and resolve application abends using Abend-Aid, Fault Analyzer, and system dumps.
  • Deploy changes through Endevor and manage source / version control processes.
  • Support DB2 and IMS flows, including precompile, bind, and ACBGEN.
  • Collaborate with Tier 1 and Tier 2 support teams on tickets, maintenance, and system interfaces.
  • Provide technical leadership, guidance, and mentoring to team members.
  • Reverse engineer from load modules as needed for troubleshooting and enhancements.
  • Work onsite 3 days per week at designated location.

Required Experience & Skills

  • 10 15 years IBM z / OS application support and team leadership.
  • 5 7 years PL / I or COBOL development.
  • Expertise in JCL, PROCs, REXX, CLIST, ISPF, SDSF.
  • Strong experience with DB2 static SQL and IMS DB / DC.
  • Proficient in Endevor or similar version control tools.
  • Experience in reverse engineering and production support for critical systems.

    • Preferred / Good to Have

  • Telecom OSS systems experience.
  • SAS on z / OS and advanced dump analysis tools.
  • Experience in 24 / 7 production support environments.
  • Integration experience across IMS, DB2, and distributed / mainframe systems.
  • Familiarity with NDM / Connect : Direct, MQ, SFTP, ZLinux, and USS.

    • Education : Bachelor's Degree in Engineering (BE required).

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