Job Description
Must Have Technical/Functional Skills
- 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.
Roles & Responsibilities
- 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.
Salary Range-$100,000-$120,000 a year
#LI-KR3
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 Be nefits & Certification & Training Reimbursement.a Time Off: Vacation, Time Off, Sick Leave & Holidays. Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing Location
Saint Louis, MO
Function
TECHNOLOGY
Role
Senior Engineer
ID
437348
Skills
Network Engineer
Salary Range
$100,000 - $120,000 |
Tata Consultancy Services
$100,000 - $120,000
sick time, 401(k)
Oct 28, 2026