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# Senior Network Engineer

- **Company:** Tata Consultancy Services Limited
- **Location:** St. Louis, MO, United States
- **Experience:** Expert
- **Salary:** $100,000.0 - $120,000.0
- **Contract:** Permanent contract
- **Skills:** Wireless LAN, Border Gateway Protocol, Computer Networks, Dynamic Host Configuration Protocol, Network Address Translation, Domain Name System (DNS), IPv4, IPv6, Subnetting, Virtual Private Networks (VPN), Python (Programming Language), Network Security, Network Architecture, Network Diagrams, Network Monitoring, Routing, Network Segmentation, Packet Analyzer, Open Shortest Path First (OSPF), Windows PowerShell, Ansible, TCP/IP, Virtual Local Area Networks, Wide Area Networks, Diagnostic Tools, Scripting, Firewalls (Computer Science), Information Technology, Open Network Automation Platform, Cisco
- **Published:** October 28, 2026
- **Apply:** https://jobs.localjobnetwork.com/apply/add/88726570/1

## About the Role

* 5+ years of related experience designing, implementing, supporting, and improving enterprise network infrastructure.
 * Strong knowledge of TCP/IP, IPv4/IPv6, DNS, DHCP, VLANs, STP, NAT, ACLs, and subnetting.
 * Hands-on expertise with enterprise routing and switching, including BGP and OSPF.
 * Experience supporting LAN, WAN, WLAN, and complex production network environments.
 * Working knowledge of firewalls, VPNs, network segmentation, access controls, and network security principles.
 * Strong troubleshooting skills using packet analysis, logs, monitoring platforms, and diagnostic tools.
 * Experience with network monitoring, capacity management, performance management, availability management, and root-cause analysis.
 * Ability to create and maintain network diagrams, implementation plans, standards, procedures, configuration records, and troubleshooting guides.
 * Experience supporting complex infrastructure projects, production changes, and service-impacting incidents.
 * Exposure to network automation or scripting using Python, PowerShell, or Ansible is preferred.
 * Relevant certifications such as Cisco CCNP, Cisco CCNA, or comparable industry certifications are desirable.
 * Strong written and verbal communication skills with the ability to explain risks, dependencies, technical decisions, and implementation status.

## Description

* As an IT Network Engineer 3, you will be responsible for:
 * Design, configure, implement, and enhance enterprise LAN, WAN, WLAN, routing, switching, and associated network infrastructure.
 * Translate business and technical requirements into scalable, secure, resilient network solutions.
 * Lead implementation, maintenance, troubleshooting, and continuous improvement of enterprise network services.
 * Diagnose and resolve complex connectivity, availability, performance, and configuration issues.
 * Monitor network health, capacity, availability, and performance and recommend preventive or corrective improvements.
 * Provide advanced support for network incidents and service-impacting events and participate in root-cause analysis.
 * Plan and execute network changes while minimizing operational risk and service disruption.
 * Incorporate security and compliance requirements into network engineering and operational activities.
 * Develop and maintain network diagrams, standards, implementation procedures, operating guides, and technical documentation.
 * Provide network expertise to infrastructure and technology projects and contribute to complex transformation initiatives.
 * Collaborate with architects, cybersecurity, application teams, telecommunications providers, customers, and technology vendors.
 * Act as a subject-matter expert across multiple network technologies and guide junior engineers on complex assignments.