Hi,
Hope you are doing well !!
I have an urgent position. Kindly go through the Job description and let me know if this would be of interest to you.
Job Title : Remote Mainframe Network System Programmer
Location : Remote
Duration : 12-24 month project
Visa : USC or GC - Preferred
Relevant experience 10 Years
Job Summary
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, ITGC, 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.).