Senior TAC Engineer — Hybrid, Elite Network & Security

GDH; San Jose (CA); Hybrid; USD 103,000 - 117,000; Full time

Job summary

GDH is seeking an experienced Network Engineer to provide advanced Tier 2/3 support for enterprise network and application delivery infrastructure. You will troubleshoot complex network issues, manage incidents, and collaborate across teams to ensure stability and security of critical systems.

The role requires 5+ years in network engineering or TAC support, hands-on experience with Arista EOS, Cisco routing, and F5 BIG-IP.

Qualifications

• Minimum of 5 years of experience in network engineering or TAC support roles.
• Hands-on experience with Arista EOS switching platforms and Cisco routing and switching technologies.
• Proficiency with F5 BIG-IP systems (LTM, GTM/DNS, or ASM preferred).
• Strong knowledge of TCP/IP networking, BGP, OSPF, VLANs, VXLANs, and network segmentation.
• Experience troubleshooting Layer 2 through Layer 7 networking issues.
• Familiarity with packet capture tools such as Wireshark or tcpdump.
• Experience working with Linux-based systems and CLI troubleshooting.
• Excellent written and verbal communication skills.
• This position requires eligibility for a U.S. Government security clearance with U.S. citizenship.

Responsibilities

• Deliver advanced support for enterprise network systems, including routing, switching, load balancing, and security platforms.
• Troubleshoot and resolve complex network incidents involving Arista EOS, Cisco networking devices, and F5 BIG-IP systems.
• Analyze network data such as packet captures, logs, and telemetry to identify root causes of issues.
• Collaborate directly with customers in production environments to troubleshoot and resolve network problems efficiently.
• Manage cases throughout their full lifecycle, including documentation, resolution, and post-incident review.
• Work with engineering and operations teams to escal and resolve intricate technical problems.
• Provide configuration guidance and best practices for network and application delivery solutions.
• Participate in on-call rotations and support maintenance activities as required.
• Maintain detailed technical documentation within ticketing and knowledge management systems.
• Support continuous improvement through knowledge sharing and process enhancement.

Skills

Network engineering

Arista EOS

Cisco routing

F5 BIG-IP

Troubleshooting

CLI troubleshooting

Tools

Arista EOS

Cisco IOS

F5 BIG-IP

Job description

GDH is seeking an experienced Network Engineer to provide advanced Tier 2/3 support for enterprise network and application delivery infrastructure. You will troubleshoot complex network issues, manage incidents, and collaborate across teams to ensure stability and security of critical systems.

The role requires 5+ years in network engineering or TAC support, hands-on experience with Arista EOS, Cisco routing, and F5 BIG-IP.