Network Engineer

Mphasis; Irving (TX); On-site; USD 85,000 - 115,000; Full time

Job summary

A global technology firm is seeking a Lead Network Engineer to ensure the security, stability, and performance of its network infrastructure. You will act as a Subject Matter Expert, troubleshooting complex issues and mentoring junior engineers. Key qualifications include 5+ years in NOC operations and strong knowledge of Routing & Switching protocols. Certifications such as CCNA and CCNP are preferred. This role is critical in maintaining operational excellence and serves as a liaison with various internal teams and external vendors.

Qualifications

• 5+ years of network support experience in NOC operations or similar environments.
• Strong understanding of Routing & Switching protocols (RIP, OSPF, BGP).
• Ability to analyze and troubleshoot data and voice network outages.

Responsibilities

• Troubleshoot complex network issues across enterprise infrastructure.
• Mentor and train Tier 1 and Tier 2 engineers.
• Open and manage Change Controls and emergency change records.

Skills

Network Operations

Routing & Switching

Troubleshooting

Customer Service

Ansible automation

Education

CCNA certification

At least one CCNP-level exam completed

Tools

F5 Load Balancers

Cisco/Checkpoint Firewalls

Arista hardware

Job description

Client is seeking a Lead Network Engineer to join our Technology Operations team. This role is critical in ensuring the stability, security, and performance of Client global network infrastructure.

You will function as a Subject Matter Expert (SME) for complex network environments, provide advanced troubleshooting, and mentor junior engineers while collaborating with internal teams and external vendors.

Responsibilities

• Troubleshoot complex and escalated network issues across **** enterprise infrastructure.
• Participate in Major Incident Management calls and bridge lines for critical outages.
• Handle tickets escalated from Tier 2 support and work on incidents per the Integrated Operations Incident Management Process.
• Configure network devices as part of break-fix activities.
• Collaborate with Advanced Technology functions, Cisco TAC, and other priority support teams.
• Serve as an SME for technologies including Routing, Switching, Firewalls, Load Balancers (F5), Proxies, and related network components.
• Mentor and train Tier 1 and Tier 2 engineers to build operational excellence.
• Open and manage Change Controls and emergency break-fix change records.
• Engage with Cisco NOC and HTTS support for escalations.
• Utilize tools such as Sniffer/Infinistream for packet capture and analysis.
• Troubleshoot issues related to Firewalls, Load Balancers, Proxy appliances, and complex routing/switching environments.
• Collaborate with vendors for escalations and resolution of critical issues.
• Provide operational input for engineering projects and participate in weekly on-call rotations, including after-hours and weekend escalations.

Required Qualifications

• Demonstrated experience in Network Operations, or equivalent through work experience, training, military service, or education.

Desired Qualifications

• 5+ years of network support experience in NOC operations or similar environments.
• Strong understanding of Routing & Switching protocols (RIP, OSPF, BGP).
• Ability to quickly analyze and troubleshoot data and voice network outages in large enterprise environments.
• Extensive firsthand experience with:
• Cisco/Checkpoint Firewalls
• F5 Load Balancers
• IP subnetting, Layer 2–4 stack, VoIP, QoS, MPLS, SD-WAN
• Experience with Arista hardware is a plus.
• Excellent customer service and communication skills.
• Knowledge of Ansible automation is a plus.Certifications: CCNA and at least one CCNP-level exam completed (CCNA specialties, F5, MCSE preferred).