Hiring.Camp

z/OS Systems Programmer (Communication Server)

Curran Daly + Associates

·

Jun 16, 2026

Location
Unknown, Unknown, USA
Workplace
Remote
Type
Full-time
Department
IT
Seniority
Senior
Experience
4+ years
Education
Bachelor
Industry
Technology
Category
Engineering
Environment
Office
Closing date
Today
Source
Vincere

Overview

As a Senior z/OS Systems Programmer, you will maintain and optimize mainframe network infrastructure. Your responsibilities include managing VTAM, TCP/IP, SNA, Parallel Sysplex, and cryptographic services. You'll implement secure communication technologies, troubleshoot complex networking issues, and collaborate with application teams. Requires 4+ years of experience with z/OS Communication Server technologies and strong scripting skills in JCL, REXX, and Java.

Description

Senior z/OS Systems Programmer (Communication Server)

Job Description

As a Senior z/OS Systems Programmer specializing in Communication Server, you will be responsible for maintaining and optimizing mainframe network infrastructure. You will play a crucial role in ensuring the reliability, security, and efficiency of the z/OS communication environment, including VTAM, TCP/IP, SNA, Sysplex, and related technologies.

Key Responsibilities

  • Manage and administer z/OS Communication Server components, including VTAM, TCP/IP, SNA, Parallel Sysplex, Sysplex Distributor, and z/OS Cryptographic Services.
  • Configure and maintain communication protocols such as VTAM, TCP/IP, and SNA to optimize network performance and reliability.
  • Implement and support secure communication technologies, including AT-TLS (z/OS Policy Agent), SSL/TLS, SFTP, FTPS, and Connect:Direct.
  • Manage and troubleshoot Apache HTTP Server environments on z/OS and develop or customize Apache modules as required.
  • Collaborate with application teams to integrate z/OS Communication Server technologies with WebSphere and other middleware platforms.
  • Develop and maintain automation and customization solutions using JCL, REXX, and Java.
  • Utilize z/OS Unix System Services (USS) to integrate mainframe applications with distributed environments.
  • Monitor system performance and implement tuning strategies to optimize network throughput and response times.
  • Provide technical expertise in mainframe networking technologies and support capacity planning, high availability, and disaster recovery initiatives.
  • Stay current with emerging technologies and industry best practices related to z/OS communications and networking.

Requirements

Technical Skills

  • Minimum of 4 years of experience as a z/OS Systems Programmer with a focus on Communication Server technologies.
  • Strong expertise in:
    • z/OS Communication Server
    • VTAM
    • TCP/IP on z/OS
    • SNA
    • Parallel Sysplex
    • Sysplex Distributor
    • z/OS Cryptographic Services
  • Hands-on experience with:
    • AT-TLS
    • Policy Agent
    • SSL/TLS
    • SFTP
    • FTPS
    • Connect:Direct (NDM)
    • Apache HTTP Server on z/OS
  • Strong scripting and automation experience using JCL, REXX, and Java.
  • Experience with z/OS Unix System Services (USS) and integration with distributed systems.
  • Solid understanding of z/OS architecture and supporting hardware components.
  • Proven ability to troubleshoot complex networking and communication issues in a mainframe environment.

Professional Skills

  • Strong leadership, organizational, and time management skills.
  • Excellent analytical and problem-solving abilities.
  • Strong communication and collaboration skills with the ability to work effectively across technical teams.
  • Ability to build and maintain productive relationships with internal stakeholders and external vendors.
  • Self-motivated and capable of working independently with minimal supervision.
  • Ability to manage multiple priorities and adapt to changing business requirements.
  • Demonstrated flexibility and willingness to learn new technologies and methodologies.

 

Skills

JavaTCP/IP

Languages

English

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