Mainframe Network Programmer

[ST Global]

Mainframe Network Programmer

Location: Austin, TX

Contract

We are seeking a skilled Mainframe Network Programmer to design, develop, and support network-related applications and systems on IBM mainframe environments. The role requires strong expertise in mainframe programming languages, telecommunications protocols, and network management tools to ensure secure, reliable, and high-performing connectivity across enterprise systems.

 

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Key Responsibilities

               •             Design & Development

               •             Develop, enhance, and maintain mainframe network programs using COBOL, Assembler, PL/I, REXX, or CLIST.

               •             Create and optimize communication protocols (SNA, TCP/IP, VTAM, NCP) for efficient data transfer.

               •             Implement APIs, exits, and utilities for integrating network functions with mainframe applications.

               •             Network Configuration & Support

               •             Configure and maintain VTAM definitions, TCP/IP stacks, and network subsystems.

               •             Monitor, troubleshoot, and resolve mainframe network connectivity issues.

               •             Support integration of mainframe with distributed platforms, middleware, and cloud environments.

               •             Performance & Security

               •             Analyze network performance, tune configurations, and ensure optimal throughput.

               •             Develop monitoring tools and scripts for network diagnostics and reporting.

               •             Ensure compliance with enterprise security standards, encryption protocols, and regulatory requirements.

               •             Collaboration & Documentation

               •             Partner with system programmers, network engineers, and application teams to deliver end-to-end solutions.

               •             Provide technical guidance during project implementations, migrations, and upgrades.

               •             Document network designs, configuration standards, and program logic.

 

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Required Qualifications

               •             Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent work experience).

               •             8+ years of experience in IBM mainframe programming with focus on network and communications subsystems.

               •             Proficiency in programming languages: COBOL, Assembler, PL/I, REXX, CLIST.

               •             Strong knowledge of VTAM, TCP/IP, NCP, SNA, and related protocols.

               •             Experience with z/OS, TSO/ISPF, JCL, SMP/E and related system utilities.

               •             Familiarity with network monitoring and debugging tools (e.g., NetView, Wireshark, OMEGAMON).

 

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Preferred Skills

               •             Experience with mainframe modernization and integration with distributed/cloud platforms.

               •             Knowledge of RACF security administration and encryption standards.

               •             Exposure to automation frameworks and scripting for network operations.

               •             Strong problem-solving, analytical, and debugging skills.

 

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Soft Skills

               •             Excellent communication and collaboration skills.

               •             Ability to work independently and as part of cross-functional teams.

               •             Strong attention to detail and commitment to system reliability.

 

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