Network Engineer

Mercury Z; Atlanta (GA); On-site; USD 80,000 - 100,000; Full time

Job summary

We are Mercury Z, seeking a skilled Network Engineer to manage on-site enterprise deployments across multiple locations including Atlanta, GA. This role demands a Cisco-certified professional with expertise in routing and switching, responsible for high-capacity circuit maintenance, troubleshooting, and ensuring network integrity.

The ideal candidate will excel in both technical competencies and client communications, serving as a trusted advisor to Fortune 500 companies. The position requires daily travel and is focused on delivering exceptional network reliability.

Qualifications

• Cisco-certified professional with a strong background in routing and switching.
• Experience leading enterprise deployments and managing high-capacity circuits.
• Ability to communicate effectively with Network Architects in Fortune 500 environments.

Responsibilities

• Lead installation and configuration of network hardware.
• Troubleshoot complex connectivity issues using advanced tools.
• Collaborate with Network Operations Center for circuit turn-ups.

Skills

Routing and Switching

Cisco Certification

Network Troubleshooting

BGP and OSPF

Network Analysis

Education

Cisco: CCNA (Routing & Switching)

CCNP or CCIE (preferred)

Juniper JNCIA/JNCIS or CompTIA Network+

Tools

Wireshark

Fusion Splicer

OTDR

Job description

Location: Nashville, TN, Memphis, TN, Atlanta, GA, Greensboro, NC or Charlotte, NC – Field Based

Position Level: Tier 2 / Tier 3 Network Engineering

Position Summary

We are looking for a Network Engineer with a strong background in routing and switching to lead our on‑site enterprise deployments. This is not a standard "cable tech" role; we need a Cisco‑certified professional who can bridge the gap between physical infrastructure and complex logical networking. You will be the technical authority on site, responsible for configuring, troubleshooting, and maintaining high‑capacity circuits for our most critical business clients.

Key Responsibilities

• Advanced L2/L3 Troubleshooting: Resolve complex connectivity issues involving BGP, OSPF, VLAN tagging (802.1Q), and STP.
• Enterprise Deployment: Lead the installation and CLI‑based configuration of Cisco, Juniper, and Meraki hardware.
• Circuit Validation: Utilize high‑end diagnostic tools (VIAVI, NetAlly) to ensure Fiber and Ethernet circuits meet strict Service Level Agreements (SLAs).
• NOC Collaboration: Act as the primary field liaison for our Network Operations Center, assisting in the turn‑up of static IP blocks and complex routing tables.
• MDF/IDF Management: Perform "deep‑in‑depth" audits of client server rooms to optimize equipment placement and extend demarcations.
• Infrastructure Reliability: While the focus is logical, you will ensure the physical layer (Fiber/Copper) is spliced and terminated to enterprise standards.

Technical Skills & Qualifications

Certifications (One or more required):

• Cisco: CCNA (Routing & Switching) required; CCNP or CCIE highly preferred.
• Alternative: Juniper JNCIA/JNCIS, or CompTIA Network+ (with significant field experience).

Core Competencies

• Hardware: Deep experience with Cisco ISR/ASR routers, Catalyst switches, Juniper MX/EX series, and Meraki MS/MX stacks.
• Protocols: Proficiency in TCP/IP, IPv4/IPv6, BGP, OSPF, EIGRP, and SD‑WAN architectures.
• Network Analysis: Experience with packet‑level analysis using Wireshark to identify latency or jitter issues.
• Physical Layer: Familiarity with Fiber Optic standards (GPON/Active Ethernet) and the ability to use an OTDR or Fusion Splicer when necessary.

Soft Skills & Requirements

• The Technical Consultant: Ability to walk into a Fortune 500 server room and speak as a peer to their Network Architects.
• Critical Thinking: A methodical approach to the "broken" circuit—isolating variables from the handoff to the core.
• Mobility: Must hold a valid driver’s license and be comfortable with daily travel to client locations.
• Physical Ability: Must be able to rack heavy enterprise equipment (up to 50 lbs) and work in professional data center environments.

What Success Looks Like

• First‑Visit Resolution: Utilizing your Cisco expertise to solve routing loops or configuration mismatches that a standard tech would miss.
• Network Integrity: Ensuring that every client handoff is clean, documented, and performing at 100% capacity.
• Client Confidence: Serving as a trusted advisor to client IT managers, ensuring they feel secure in our network’s reliability.