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# z/OS Communications Server Systems Programmer

- **Company:** LTD Global
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Communications Protocols, Internet Protocol Security (IP SEC), Simple Mail Transfer Protocols, Network Architecture, System Programming, TCP/IP, Transmission Control Protocol (TCP), Z/OS, File Transfer Protocol (FTP), Information Technology
- **Published:** September 3, 2026
- **Apply:** https://www.dice.com/job-detail/d3dd6286-1204-41ad-ae61-95a1ed8566fa

## About the Role

We are seeking an experienced Senior z/OS Communications Server Systems Programmer to support IBM z/OS environments. The successful candidate will have deep hands-on experience with z/OS Communications Server, TCP/IP networking, VTAM, and associated communications technologies.

This is a senior technical role requiring the ability to independently analyze complex communications issues, perform system-level configuration and maintenance, troubleshoot production problems, and work effectively with other mainframe infrastructure and application teams.

Responsibilities

 * Provide senior-level systems programming support for z/OS Communications Server.
 * Install, configure, maintain, and troubleshoot z/OS Communications Server components.

 * Strong expertise with TCP/IP and VTAM in an enterprise z/OS environment.
 * Demonstrated experience with:

 * TCP/IP stack configuration and troubleshooting
 * VTAM
 * TN3270/TN3270E
 * FTP/SFTP
 * SMTP
 * AT-TLS
 * IPSec
 * Enterprise Extender
 * OSA-Express

Strong knowledge of z/OS networking architecture and communications protocols.

Knowledge of CL/Supersession and/or Data21 Intersession



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