Sr Tower Lead (Support & Operations)
Technology, Data & Digital · Software & Web Development · Software Engineering
In short
Responsible for the administration, support, maintenance, and optimization of IBM Mainframe network infrastructure, ensuring secure, stable, and high-performing connectivity. The role supports business-critical production environments and drives continuous improvement, automation, and operational excellence. Requires 10+ years in Mainframe Infrastructure and 5+ years in Mainframe Networking, with expertise in VTAM/TCP-IP architecture, client-facing delivery, and team leadership.
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.
Requirements
- 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
- Stakeholder Management
- Client Communication
- Incident Management
- Problem Solving
- Leadership and Mentoring
- Documentation and Governance
- Continuous Improvement Mindset
- 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
Desired Qualifications
- NetView
- System Automation
- MQ
- CICS Connectivity
- FTP/SFTP
- Connect:Direct
- SSL/TLS Certificates
- Network Performance Tuning
- Mainframe Automation Tools
- Disaster Recovery Processes
Benefits
- You'll find your career.
- You'll find your spark.
- A place that knows that helping its customers stay on top starts by putting its people first.
- Global technology company with over 223,000 people across 60 countries.
- Delivering industry-leading capabilities centered around digital, engineering, cloud and AI.
- Works with clients across all major verticals.
#Mainframe#Network#Support#Operations#IBM z/OS#VTAM#TCP/IP#SNA#Automation#Team Lead
Company
HCLTech
Job Posted
1 day ago
Employment Type
Full Time
WorkMode
On Site
Experience Level
Senior
Locations
Chennai, India
Bengaluru, India
Applicants
Be an early applicant