Field Network Engineer: WiFi & Data Center Deployments

GCS Recruitment; San Antonio (TX); On-site; USD 70,000 - 100,000; Full time

Job summary

GCS Recruitment is seeking a Network Field Engineer in San Antonio, Texas, who will be responsible for onsite implementation and troubleshooting of enterprise Wi‑Fi and LAN infrastructure in data center environments. The ideal candidate will have strong expertise in wireless networking and system integration.

Responsibilities include conducting site assessments, performing network deployments, and ensuring systems meet performance standards. Candidates should have 5-10+ years of experience in wireless network deployment and hold relevant certifications.

Qualifications

• 5-10+ years of experience in wireless network deployment and troubleshooting.
• Strong knowledge of VLANs, routing, and switching concepts.
• Proven experience with site surveys, implementation, and optimization.

Responsibilities

• Validate field conditions against design documentation.
• Perform staging, configuration, and deployment of wireless access points.
• Troubleshoot wireless issues including coverage gaps and interference.

Skills

802.11 Wi‑Fi standards

IP routing

VLANs

WLAN security

RF fundamentals

Education

Relevant certifications (CWNA or equivalent)

Vendor certifications (Ruckus, Cisco, Aruba)

Tools

Wireshark or equivalent

RF survey and troubleshooting tools

Network validation tools

Job description

The Network Field Engineer is responsible for the onsite implementation, validation, and troubleshooting of enterprise Wi‑Fi and LAN infrastructure within data center environments. This role requires strong hands-on expertise in wireless networking, switching, and system integration, with a focus on execution quality, performance optimization, and rapid issue resolution.

The engineer works closely with project managers, design engineers, and customer teams to ensure deployments meet design intent, operational requirements, and defined performance KPIs.

Key Responsibilities

Site Assessment & Validation

• Validate field conditions against design documentation (floor plans, rack layouts, RF designs)
• Conduct site surveys, measurements, and documentation when required
• Capture field updates including photos, markups, and design changes

Implementation & Deployment

• Perform staging, configuration, and deployment of:
• Wireless access points, controllers, and cloud-managed WLAN systems
• LAN switching infrastructure (access and distribution layers)
• Execute network configurations including VLANs, routing, segmentation, and security
• Support installation teams with technical direction and quality validation
• Implement high availability and redundancy solutions (stacking, failover, etc.)

Network Turn-Up & Testing

• Perform system validation and commissioning of Wi‑Fi and LAN environments
• Execute acceptance testing, performance validation, and system verification
• Ensure solutions meet defined KPIs for performance, coverage, and reliability

Troubleshooting & Optimization

• Troubleshoot wireless issues such as coverage gaps, interference, and roaming behavior
• Diagnose network problems including latency, packet loss, and configuration errors
• Use packet capture and RF analysis tools to isolate and resolve issues
• Optimize configurations for performance, stability, and scalability

Migration & Change Execution

• Execute network migrations and planned changes using defined procedures (MOPs)
• Support upgrades, cutovers, and system integrations
• Minimize service impact during transitions

Documentation & Reporting

• Produce and maintain:
• As-built documentation and network diagrams
• Test plans and validation results
• Issue logs and root cause analysis reports
• Provide daily progress updates and status reporting

Customer & Internal Collaboration

• Act as a technical liaison with customers, internal engineering teams, and support organizations
• Support escalation and issue resolution processes
• Provide knowledge transfer and operational guidance to customer teams

Required Skills & Expertise

Wireless & Networking

• Strong knowledge of:
• 802.11 Wi‑Fi standards and RF fundamentals
• IP routing and switching concepts
• VLANs, QoS, and network segmentation
• Experience with WLAN security (authentication, encryption, AAA/RADIUS)
• Familiarity with controller-based and cloud-managed wireless architectures

Data Center & LAN

• Experience with switching technologies including:
• VLANs, routing, STP/MSTP, VRF
• High availability and redundancy design
• Understanding of structured cabling and data center environments

Tools

• Packet analysis tools (e.g., Wireshark or equivalent)
• RF survey and troubleshooting tools
• Network validation and performance testing tools

Experience & Qualifications

• 5-10+ years of experience in:
• Wireless network deployment and troubleshooting
• LAN or data center network engineering
• Proven experience with site surveys, implementation, commissioning, and optimization
• Relevant certifications preferred:
• CWNA or equivalent wireless certification
• Vendor certifications (Ruckus, Cisco, Aruba, etc.)

GCS is acting as an Employment Business in relation to this vacancy.