CMA Technology · Managed Services / Infrastructure
Travel: Regular travel to client sites, including overnight stays; occasional after-hours work for cutovers and outages
Position summary
CMA Technology is hiring a Network Field Engineer to design, maintain, and troubleshoot network infrastructure across a multi-site client portfolio, including senior living facilities and small businesses. The role owns firewalls, switching, and wireless at dozens of remote sites and resolves performance issues end to end.
Key responsibilities
Firewall and security
- Manage SonicWall firewalls fleet-wide: policies, NAT, security services, and firmware.
- Build and troubleshoot site-to-site and remote-access VPNs, including DNS and SSL inspection issues.
Switching and routing
- Configure and maintain managed switches, VLANs, PoE, and uplinks.
- Diagnose port errors, loops, cabling faults, and switch outages.
- Coordinate ISP circuits (e.g., dedicated internet access) through install, cutover, and escalation.
Wireless
- Administer UniFi wireless controllers across many sites.
- Analyze channel utilization, airtime, RF interference, and client experience; remediate 2.4/5 GHz congestion.
- Plan AP placement, channel and power settings, and SSID design for high-density residential buildings.
- Perform on-site installs of wireless APs and network switches, including mounting, cabling, adoption, and configuration.
Diagnostics and support
- Use packet captures to isolate application slowness, such as EHR performance at clinics.
- Respond to tickets and outages as tier 2/3 escalation; document root cause and fix.
- Support connected building systems on the network, such as intercoms and nurse-call devices.
Documentation and reporting
- Maintain network diagrams, IP plans, credentials vaults, and site runbooks.
- Produce status reports for clients and leadership on WiFi health, outages, and remediation.
Required qualifications
- Experience administering networks, ideally at an MSP or across multiple client sites.
- Hands-on configuration of next-generation firewalls (SonicWall or similar), including VPN configurations.
- Solid grasp of TCP/IP, DNS, DHCP, VLANs, routing, NAT, and 802.11 wireless fundamentals.
- Experience with enterprise wireless platforms (UniFi preferred) and RF troubleshooting.
- Valid driver's license, reliable transportation, and ability to travel overnight to client sites as needed.
- Able to pass a background check.
Preferred qualifications
- Experience supporting healthcare networks and HIPAA-sensitive environments.
- Familiarity with large and small WiFi setups.
- Structured cabling knowledge and comfort working with low-voltage contractors.
- Methodical troubleshooter who works from data.
- Explains technical findings clearly to facility staff, managers, and vendors.
- Manages many sites and open issues at once without dropping follow-ups.
- Works independently on site with minimal supervision.
Working conditions
- Mix of remote administration and on-site work in occupied senior living and other small business clients.
- Occasional overnight travel, on-call rotation for outages and maintenance.
- Physical: lift up to 50 lbs., use ladders, and work in ceilings, IDF closets, and tight spaces.