Lab Network Engineer

GCS; Sunnyvale (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

GCS is seeking an experienced Network Engineer to join its Global Labs team, supporting enterprise-scale lab environments for Engineering, TAC, Product Management, Sales Engineering and Customer Engagement worldwide.

The senior networking specialist will maintain and enhance lab infrastructure used for customer demonstrations, POCs and testing, while mentoring junior technicians and driving improvements across global lab sites.

Qualifications

• 5–8 years in enterprise networking or data centre environments.
• Strong knowledge of TCP/IP, routing and switching, VLANs and subnetting.
• Experience with Cisco and/or RUCKUS switches/routers/APs.
• Familiar with DMZ, IP address management, and network segmentation.
• Hands-on with Wireshark, Ixia or Spirent for testing.
• VMware ESXi, KVM, or Hyper-V from a networking perspective.
• Windows and Linux administration.

Responsibilities

• Administer and improve lab network infrastructure (switching, routing, firewalls, wireless, remote access, terminal servers, and intelligent PDUs).
• Lead network deployment, refresh, segmentation, and remediation across lab environments.
• Troubleshoot complex networking issues independently.
• Design and implement testbed environments for customer demos, POCs, and validation.
• Recreate customer environments for TAC escalations including complex routing and DMZ.
• Deploy and support wireless test environments and RF troubleshooting.
• Use packet capture and traffic generation to validate performance and stability.
• Support cloud lab services by provisioning network connectivity for shared resources.
• Provide out-of-band management via terminal servers and PDUs.
• Create and maintain network diagrams, VLAN/IP plans, inventories, runbooks.

Skills

TCP/IP

Routing & Switching

VLANs & Subnets

Firewalls

Network Troubleshooting

Cisco/RUCKUS gear

DMZ networks

IPAM

Terminal servers

PDU management

Wireshark

Ixia/Spirent

VMware ESXi

KVM

Hyper-V

Windows Admin

Linux Admin

Data center operations

Education

Bachelor's degree in Computer Science/IT/Engineering

Tools

Wireshark

Ixia/Spirent

VMware ESXi

KVM

Hyper-V

Windows

Linux

Job description

We are seeking an experienced Network Engineer to join our Global Labs organisation, supporting enterprise-class lab environments used by Engineering, TAC, Product Management, Sales Engineering, and Customer Engagement teams worldwide.

As the senior networking specialist within the lab team, you will be responsible for maintaining and enhancing the network infrastructure that underpins customer demonstrations, proof of concepts (POCs), engineering testbeds, and technical escalation environments.

You'll also provide technical leadership and mentoring to junior lab technicians while driving infrastructure improvements and network-related projects across global lab sites.

Key Responsibilities

Administer, maintain, and improve lab network infrastructure, including switching, routing, firewalls, wireless networking, remote access, terminal servers, and intelligent PDUs.

Lead network deployment, refresh, segmentation, and remediation projects across lab environments.

Troubleshoot and resolve complex networking and infrastructure issues independently.

Design and implement testbed environments for customer demonstrations, engineering validation, and proof-of-concept activities.

Recreate customer environments for TAC escalations, including complex routing, DMZ, remote-access, and overlapping subnet scenarios.

Deploy and support wireless test environments, including access points, controllers, and RF troubleshooting.

Use packet capture and traffic generation tools to validate network performance, failover, throughput, and stability.

Support virtual and cloud-based lab services by provisioning and validating network connectivity for shared resources and virtual machines.

Provide out-of-band management through terminal servers and intelligent PDUs to enable remote recovery and management of lab equipment.

Create and maintain technical documentation including network diagrams, VLAN/IP plans, port mappings, inventories, runbooks, and knowledge base articles.

Mentor junior lab technicians and provide technical guidance on networking best practices.

Required Skills & Experience

5-8 years of experience in enterprise networking, data centre operations, lab environments, wireless networking, or IT infrastructure.

Strong knowledge of:

TCP/IP

Routing and switching

VLANs and subnetting

Firewall technologies

Network troubleshooting methodologies

Hands-on experience with enterprise network infrastructure, including:

Cisco and/or RUCKUS switches, routers, wireless access points, and WLAN controllers

Firewalls and DMZ environments

Network segmentation and IP address management

Terminal servers and intelligent PDU solutions

Experience using network analysis and test tools such as Wireshark, Ixia, Spirent, or similar.

Exposure to VMware ESXi, KVM, or Hyper-V environments from a networking perspective.

Working knowledge of Windows and Linux administration.

Experience within data centre environments, including rack-and-stack, structured cabling, port mapping, and equipment installation.

Preferred Qualifications

Bachelor's degree in computer science, Information Technology, Engineering, Networking, or a related discipline.

Relevant certifications such as:

Cisco CCNA or CCNP

RUCKUS Certifications

VMware Certifications

Microsoft Certifications

AWS or Azure Certifications

CompTIA Network+ or Security+

Ideal Background

Candidates with experience in vendor test labs, enterprise data centres, IT infrastructure teams, MSPs, VARs, or customer-facing technical environments will be particularly well suited to this role.

Experience supporting POCs, demonstrations, engineering test environments, or TAC escalation activities is highly desirable.

Why Join?

This is an opportunity to become the senior network authority within a global lab organisation, working with advanced networking technologies while supporting critical engineering, support, and customer-facing initiatives.

You will have the opportunity to lead infrastructure projects, influence lab strategy, and mentor the next generation of technical talent.