Mainframe Network System Programmer (100% Remote) :: W2 & 1099 Only - DMS Vision Inc.

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Please find the job description given below and let me know your interest.

Position: Mainframe Network System Programmer (100% Remote)

Location: 100% Remote

Duration : 12-24 months

Job Description:

The Mainframe Network System Programmer is responsible for the installation, configuration, customization, and ongoing support of networking software and communication subsystems on IBM z/OS mainframe environments. This role ensures secure, reliable, and high-performance network connectivity between mainframe systems, distributed platforms, and enterprise applications. The position requires expertise in TCP/IP, VTAM, SNA, and related communication protocols, as well as collaboration with infrastructure, security, and application teams.

Key Responsibilities

Installation & Maintenance

• Install, configure, and upgrade mainframe networking components such as TCP/IP, VTAM, Enterprise Extender (EE), and NetView.
• Apply PTFs, APARs, and maintenance updates using SMP/E.
• Customize communication parameters, exits, and profiles to meet business requirements.

System Programming & Support

• Provide technical support for mainframe networking subsystems.
• Troubleshoot communication failures, SNA/VTAM issues, TCP/IP connectivity problems, and performance bottlenecks.
• Support integration with mainframe subsystems such as CICS, IMS, DB2, and MQ.
• Manage network-related IPL considerations, traces, dumps, and log analysis.

Performance & Capacity Management

• Monitor and tune TCP/IP stacks, VTAM definitions, and Enterprise Extender connections.
• Optimize session routing, buffer sizes, and bandwidth utilization for efficiency.
• Forecast capacity and plan for network growth or upgrades.

Security & Compliance

• Implement and maintain network security controls in coordination with RACF/ACF2/TSS.
• Configure firewalls, AT-TLS (Application Transparent TLS), IPSec, and secure sockets for encrypted communication.
• Ensure compliance with SOX, PCI-DSS, IT and internal security policies.

Disaster Recovery & Business Continuity

• Develop and test mainframe networking disaster recovery plans.
• Participate in DR exercises, ensuring connectivity between production and recovery sites.
• Support high availability and failover strategies for network components.

Change & Release Management

• Participate in planning and execution of software migrations, feature enablement, and new deployments.
• Document networking configurations, changes, and troubleshooting procedures.
• Adhere to ITIL processes for incident, problem, and change management.

Collaboration & Support

• Work closely with system programmers, storage, security, and distributed network teams.
• Provide 24x7 on-call support for critical networking issues.
• Assist application developers in configuring network connectivity for mainframe-based applications.

Required Skills & Qualifications

• Strong experience with IBM z/OS mainframe networking (TCP/IP, VTAM, SNA).
• Hands-on knowledge of Enterprise Extender (EE), HiperSockets, and NetView.
• Proficiency in configuring IP, routing, DNS, FTP, TN3270, and network encryption protocols.
• Experience with SMP/E for maintenance and upgrades.
• Strong troubleshooting, dump analysis, and performance tuning skills.
• Familiarity with JCL, REXX, and automation tools.

Preferred Qualifications

• 5+ years of experience as a Mainframe Network System Programmer.
• Experience in Sysplex networking, multi-stack environments, and high availability.
• Knowledge of mainframe integration with distributed systems over TCP/IP.
• Exposure to monitoring tools such as OMEGAMON for IP, NetView, or equivalent.
• Familiarity with ITIL processes (Incident, Change, Problem Management).
• Experience in audit and compliance support (SOX, PCI-DSS, ISO27001, etc.).

If you are interested, please share your updated resume and suggest the best number & time to connect with you.

Ajit Kumar US IT Recruiter , DMS VISION Inc

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.