Tata Consultancy Services

Network LAN Engineer

Tata Consultancy Services • $80K — $90K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of experience in network design and implementation
  • CCNP Certification (Routing & Switching) or higher
  • Expertise in Cisco's Data Center technologies, especially ACI and SDA
  • Strong knowledge of LAN switching technologies and routing protocols
  • Hands-on experience with network monitoring tools like Cisco APIC, DNAC, and Nagios
  • Understanding of IP addressing and networking fundamentals like BGP, OSPF, and MPLS
  • Experience troubleshooting and configuring diverse network environments

Responsibilities

  • Provide operations support for LAN, Security, and Data Center platforms across North America
  • Install and configure network equipment including switches and routers
  • Provide operational support for Cisco ACI and APIC tools
  • Diagnose and resolve connectivity issues within the network
  • Maintain external connections including firewalls and load balancers
  • Plan and execute firmware upgrades for APIC and switches
  • Collaborate with teams and vendors to improve network performance and reliability

Benefits

  • Comprehensive medical, dental, and vision coverage
  • Discretionary annual incentive
  • Generous parental and family support leave options
  • Training reimbursement for certifications and professional growth
  • 401(k) plan with performance bonuses
  • Legal assistance and other financial support options
  • Paid vacation, sick time, and holidays
Full Job Description
Must Have Technical/Functional Skills

Strong knowledge in Switching technologies Tenant, VRFs, BDs, EPGs, VXLAN, STP, Trunking, Ether channel, HSRP, VRRP, LACP, PaGP, BGP, OSPF, MP-BGP

Switching Models Nexus 9K, 7K, 5K, 2K, VPC, FEX, VDC, Cisco VSS, VPC, Cisco Catalyst 6800, 6500, 4500, 3800, 3500 2900 with stacking.

Deep understanding of Internet Protocol (IP) addressing and Variable Length Subnet Mask (VLSM).

Extensive experience on designing and implementing Cisco ACI, SDA (Software-Defined Access), DNAC with Data Center Networking Technologies and Cloud Solutions.

Strong experience with Monitoring and Alerting Tools:
• Cisco APIC/ACI, Nexus Dashboard, Cisco DNAC, Cisco ISE, PagerDuty, Nagios & Thousand Eyes.
• CCNP Certified (Routing & Switching) & Higher
• Strong knowledge on Cisco Data Center with ACI environment (Single/Multi Pod)
• Expert Knowledge of LAN switching technologies: STP, Trunking, Ether channel and good understanding of high availability fundamentals (HSRP and VRRP)
• Good understanding of Local Area Network (LAN) switching technologies including ACI, APIC, VXLAN, fabric path, SDA, DNAC, ISE, Spanning Tree, Virtual LAN (VLAN), and VLAN Trunking Protocol (VTP) concepts.
• Good hands-on experience on the load balancing concepts like - LACP, PaGP
• Strong hands-on work experience with Cisco Nexus 9K, 7K, 5K, 2K devices, Cisco Catalyst 9K, 3K & 4K series.
• Experience in designing, deploying, and troubleshooting VSS, VDC, VPC, OTV, Fabric path, FCoE and multi-tenancy in the datacenter.
• Deep understanding of Internet Protocol (IP) addressing and Variable Length Subnet Mask (VLSM).
• Good understanding of DHCP, DNS - Hands-on experience & troubleshooting knowledge on Infoblox.
• Troubleshooting network link/device hardware/configuration issues, isolating the problem, fixing the problem
• Install, configure, and support large-scale production and corporate network infrastructure including routers, switches, console servers and equipment.
• Schedule and perform network maintenance, repair, and upgrade tasks as needed while limiting the impact on the production network.
• Very strong Layer 2 & 3 Networking skills solid BGP, IPV4, IPv6, Change management.
• Troubleshooting the routing protocols like BGP, EIGRP, Static and OSPF and work with the ISPs and internal teams to resolve the issues.
• Experience working on CoS, QoS, WRED and related quality of service parameters.
• Working knowledge on MPLS, Metro Ethernet and Hub & Spoke concepts

Roles & Responsibilities

1. Provide operations support for Enterprise LAN, Security, Data Center, and Campus Network platforms across North America locations.

2. Installing, configuring, and supporting network equipment including Switches & Routers using APIC & DNAC tool.

3. Configuration and Operational support experience with Cisco ACI - Spine-leaf switches, APIC and APIC-EM controller, Nexus switches.

4. Resolve connectivity problems between applications, EPGs, and external networks.

5. Diagnose routing, contracts, and endpoint learning issues.

6. Maintain external connections (L3Out, firewalls, load balancers) and Apply micro segmentation and policy rules.

7. Add or update ACI objects (tenants, VRFs, bridge domains, EPGs, contracts).

8. Deep understanding of network orchestration and automation using Cisco ACI/APIC, SDA & DNAC with ISE integration.

9. Procuring network equipment and managing subcontractors involved with network installation.

10. Configuring routing and switching to maximize network efficiency and security.

11. Supervise and or performing site installs, maintenance, upgrades or software enhancements to support the network infrastructure needs.

12. Plan and execute APIC and switch firmware upgrades.

13. Function as a point of escalation for operational entities regarding regular or complex issues.

14. Maximizing network performance through ongoing monitoring and troubleshooting

15. Investigating faults in the network

16. Resolve incidents/problems/Changes according to established procedures.

17. Work on Service improvement activities and completing it within the target dates.

18. Explore & Support automation where possible.

19. Work closely with customer, Infrastructure teams and vendors such as Cisco.

Reporting network status to key stakeholders

Salary Range: $80,000 - $90,000 per 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 & Training Reimbursement.

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

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

About Tata Consultancy Services

Tata Consultancy Services (TCS) is an Indian multinational information technology (IT) services and consulting company, headquartered in Mumbai, Maharashtra, India. It is a subsidiary of Tata Group and operates in 149 locations across 46 countries. TCS is the largest Indian company by market capitalization and is ranked 11th on the Forbes Global 2000 list of the world's biggest public companies. TCS is also the second-largest IT services company in the world by revenue and the largest employer of women in India. The company provides services in areas including IT, consulting, and business solutions.
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