Mainframe Network

Tata Consultancy Services Ltd

Columbus, OH

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JOB DETAILS

SALARY

$110,000–$130,000 Per Year

SKILLS

Access Control, Application Programming Interface (API), Capacity Management, Capacity and Performance Management, Change Management, Computer Security, Configuration Management, DNS Name Resolution, Failover, High Availability, IBM CICS (Customer Information Control System), IBM DB2, IBM Rexx Programming Language, IBM Sysplex, IBM System/Spool Display and Search Facility (SDSF), IBM VTAM (Virtual Telecommunications Access Method), IBM WebSphere Application Server, IBM z-OS Operating System, IP (Internet Protocol), IP Addressing, IPsec (IP Security), Identify Issues, Incident Management, Intellectual Property (IP), Layer 2 Protocols, Legal, Loan Funding, Mainframe Computer, Maintain Compliance, Messaging Middleware, Middleware, Network Administration/Management, Network Configuration Management, Network Connectivity, Network Monitoring, Network Performance/Analysis, Network Security, Organizational Skills, Performance Analysis, Performance Metrics, Platform for Privacy Preferences, Production Support, RACF (Resource Access Control Facility), Regulatory Compliance, Reporting Skills, Root Cause Analysis, Sarbanes-Oxley Act (SOX), Scripting (Scripting Languages), Security Monitoring, Software Patches, Student Loans, TCP/IP (Transmission Control Protocol/Internet Protocol)

LOCATION

Columbus, OH

POSTED

30+ days ago

Must Have Technical/Functional Skills

z/OS fundamentals, TCP/IP networking, VTAM/SNA, RACF security, monitoring tools (SDSF, NETSTAT), and middleware connectivity (CICS, DB2, MQ)

Operational Capabilities:

Incident & change management, performance monitoring, capacity planning, and automation (REXX scripting)

Functional Strengths:

24x7 production support, strong troubleshooting ability, stakeholder coordination, and compliance awareness (SOX/NERC-CIP)

Roles & Responsibilities

Network Operations & Monitoring

Perform 24x7 monitoring of mainframe network components and connectivity

Monitor TCP/IP stack, ports, sessions, and communication failures

Track alerts, logs, and performance metrics using monitoring tools

Ensure high availability and stability of network services

CP/IP & Connectivity Management

Configure and manage z/OS TCP/IP stack and profiles

Manage ports, IP addressing, DNS resolution, and routing

Ensure connectivity between:

Mainframe Distributed systems

Mainframe External applications (middleware, APIs)

Support inter-LPAR communication (Sysplex, HiperSockets)

Incident Management & Troubleshooting

Identify, analyze, and resolve network-related incidents (P1/P2/P3)

Troubleshoot:

Connection failures

Port/service issues

MQ/DB2/CICS connectivity problems

Perform root cause analysis (RCA) and provide resolution

Act as single point of contact for network issues (L2)

Change & Configuration Management

Implement changes to network configurations (TCP/IP, security rules, ports)

Participate in:

CAB meetings

Change implementation and validation

Maintain network configuration documentation

Ensure minimal disruption during changes

Security & Compliance (Critical for Utilities)

Administer network-level security controls using RACF

Implement access controls for ports, services, and users

Support audits and compliance requirements (NERC/CIP, SOX)

Perform vulnerability and patch management activities

Middleware & Integration Support

Ensure network connectivity for:

CICS (transaction systems)

DB2 (database connections)

MQ (message queues)

Support distributed integration (WebSphere, APIs, external apps)

Troubleshoot application-level network issues

Performance & Capacity Management

Monitor network performance (latency, throughput, session usage)

Identify bottlenecks and optimize configurations

Provide inputs for capacity planning (IP usage, bandwidth)

Generate performance reports and KPIs

High Availability & Disaster Recovery

Support HA setup and failover mechanisms

Participate in DR drills and recovery testing

Ensure network readiness during IPLs and system restarts

Maintain network redundancy and resiliency

Salary Range: $110,000- $130,000 a year

TCS Employee Benefits Summary:

Discretionary Annual Incentive.

Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.

Family Support: Maternal & Parental Leaves.

Insurance Options: Auto & Home Insurance, Identity Theft Protection.

Convenience & Professional Growth: Commuter Benefits & Certification & amp; Training Reimbursement.

Time Off: Vacation, Time Off, Sick Leave & Holidays.

Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.

Mainframe Network

Tata Consultancy Services Ltd

Columbus, OH

About the Company

Tata Consultancy Services Ltd

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