Network Engineer: L2/L3 Networking & High-Availability

Diverse Lynx, LLC

O’Fallon (MO)

On-site

USD 69,000 - 96,000

Part time

9 days ago

Get a reply from this employer

Your resume and cover letter, tailored to exactly what they’re hiring for.

Get past ATS filters

Job summary

Diverse Lynx LLC is seeking a Data Networking Implement & Maintenance specialist for an onsite contract role in O’Fallon, MO. The position focuses on designing and troubleshooting Layer 2/3 network flows, with emphasis on IP routing, traffic failover, and diagnostics.

Candidates should have hands-on experience with TCP/IP, Linux networking, and packet analysis using Wireshark or tcpdump. Preference for experience with resilient services and common network technologies.

Qualifications

Strong hands-on Layer 2 and Layer 3 networking.
TCP/IP, socket behavior, routing, ARP/GARP, VLANs, NAT, and high-availability patterns.
Linux networking and troubleshooting systems.
Wireshark, tcpdump, or equivalent packet-analysis tools.
Practical experience with resilient or active-active network services.

Responsibilities

Design and troubleshoot Layer 2 and Layer 3 network flows.
Support IP movement, routing, failover, traffic draining, and recovery.
Analyze TCP connection and socket behavior during maintenance and failure scenarios.
Perform packet-level diagnostics and root-cause analysis.
Partner with proxy developers on stateful traffic movement and connection preservation.
Participate in integration, performance, resiliency, and production-readiness testing.