Job Summary

Mainframe Network

Role Summary

Responsible for the administration, support, maintenance, and optimization of IBM Mainframe network infrastructure, ensuring secure, stable, and high-performing connectivity between mainframe systems, distributed platforms, applications, and external networks. The role supports business-critical production environments and drives continuous improvement, automation, and operational excellence.

Technical Skills Required

Mandatory

- IBM z/OS
- VTAM
- TCP/IP for z/OS
- SNA Networking
- OSA Configuration
- NCP Concepts
- JES2/JES3 Connectivity
- TSO/ISPF
- RACF Security Basics
- SDSF
- Network Diagnostics and Tracing

Preferred

- NetView
- System Automation
- MQ
- CICS Connectivity
- FTP/SFTP
- Connect:Direct
- SSL/TLS Certificates
- Network Performance Tuning
- Mainframe Automation Tools
- Disaster Recovery Processes

Experience Levels

Associate General Manager / Lead (E4.2-E5.1)

- 10+ years in Mainframe Infrastructure
- 5+ years in Mainframe Networking
- Expertise in VTAM/TCP-IP architecture
- Client-facing delivery experience
- Team leadership and technical governance
- Transformation and modernization exposure

Soft Skills

- Stakeholder Management
- Client Communication
- Incident Management
- Problem Solving
- Leadership and Mentoring
- Documentation and Governance
- Continuous Improvement Mindset

Key Responsibilities

- Administer and support VTAM, TCP/IP, and SNA network environments.




- Configure and maintain mainframe communication resources and network definitions.
- Monitor network performance, availability, and capacity utilization.
- Troubleshoot network connectivity issues impacting CICS, MQ, IMS, DB2, and batch workloads.
- Perform incident, problem, and change management activities.
- Coordinate with distributed network, security, storage, and infrastructure teams.
- Implement network-related software upgrades, maintenance, and vulnerability remediation.
- Support disaster recovery, business continuity, and infrastructure resilience initiatives.
- Develop and maintain operational documentation, runbooks, and standard operating procedures.
- Drive automation and process improvements to enhance service quality and reduce manual effort.
- Participate in on-call support and critical production issue resolution.
- Ensure compliance with security, audit, and regulatory requirements.

Skill Requirements

- Stakeholder Management
- Client Communication
- Incident Management
- Problem Solving
- Leadership and Mentoring
- Documentation and Governance
- Continuous Improvement Mindset

Must Have Skill

z/OS,Mainframe Network

Positive to Have Skill

Mainframe Network Tool - Others

Other Requirements

- Mainframe Network Support (VTAM)
- Network Automation
- Performance & Capacity Management
- Mainframe Security Integration
- z/OS Infrastructure Services
- Architecture & Engineering Support

📌 Sr Tower Lead (Support & Operations) (India)
🏢 HCLTech
📍 India