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Senior Mainframe L3 Support Engineer
Senior Mainframe L3 Support EngineereTeam • Richardson, TX
Senior Mainframe L3 Support Engineer

Senior Mainframe L3 Support Engineer

eTeam • Richardson, TX
[job_card.30_days_ago]
[job_preview.job_type]
  • [job_card.full_time]
[job_card.job_description]

Job title : Mainframe Application Developer-L

Work Location with Zip code : Richardson, TX OR Baskin Ridge ,NJ ,Tampa FL

Duration of the project : Months

  • Education Qualification required : BE

Job Description

Mainframe Application Developer (L Support – Tech lead)

Need a highly experienced mainframe developer or solution architect with experience leading a team providing Tier support that includes code enhancements, bug fixes, remediation of vulnerabilities, and platform upgrades (z / OS, DB, IMS, SAS, and Endevor-related tasks). The developer should be able to support Tier and Tier teams who manage daily operations and ensure the system remains stable, available, and functioning / .

This role supports multiple integrated network planning and work administration systems used to plan, provision, dispatch, inventory, and maintain telecom networks. Knowledge of PL / I or Assembler, JCL, REXX, SAS, DB, IMS, and mainframe compilation flows is required.

Responsibilities

Provide Tier Support for all mainframe OSS applications, including :

  • Provide code fixes across PL / I, Assembler, COBOL, SAS, REXX, CLIST, and JCL modules
  • Prepare enhancements and minor functional changes
  • Identify and remediate vulnerabilities in mainframe modules or JCL flows
  • Perform analysis of production issues impacting dispatch, inventory, or planning systems
  • Thoroughly test all software changes using approved test suites
  • Successfully build and deploy all software changes through Endevor across multiple regions
  • Debug and resolve abends using Abend-Aid, Fault Analyzer, or system dumps
  • Support DB and IMS precompile, bind, and ACBGEN flows as required for code changes

    • Assist the Tier Support team as needed including :

  • Analyzing and responding to end-user or Tier / Tier developer questions and tickets
  • Administering user access to specific batch flows or applications (as necessary)
  • Providing routine system and job stream maintenance
  • Maintaining system interfaces between different subsystems
  • Ensuring that nightly and weekly cycles complete successfully
  • Remediating system overload issues, long-running jobs, or SQL degradation

    • Requirements

  • Minimum - years of hands-on experience supporting applications on IBM z / OS and leading a team of developers
  • Minimum – years of experience in PL / I or COBOL development
  • Strong experience with JCL, PROCs, REXX, CLIST, ISPF, and SDSF
  • Solid understanding of DB static SQL, precompile, bind, package / plan management
  • Experience with IMS (DB + DC), including PSB / DBD / ACB generation flows
  • Prior experience with Endevor or similar mainframe source / version management tools
  • Ability to analyze load modules, compare source-to-load behavior, and reverse-engineer logic when source is unavailable

    • Nice to Have

  • Experience with telecom OSS / Telecom systems
  • Experience with SAS on z / OS (report generation, batch execution)
  • Experience with dump reading tools (Abend-Aid, Fault Analyzer)
  • Experience in a high-availability, / operational environment
  • Experience integrating applications across IMS, DB, and distributed platforms
  • Familiarity with NDM / Connect : Direct, MQ, SFTP on mainframe
  • Experience with ZLinux or z / OS UNIX System Services
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