Senior Mainframe L3 Support EngineereTeam • Richardson, TX

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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