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ISP Network Support Engineer (Remote)

Roles & Responsibilities

  • Hands-on experience in an ISP, WISP, FTTH, or managed service provider environment.
  • Strong troubleshooting skills across routing, switching, and WAN connectivity, including BGP/OSPF.
  • Experience configuring routers and firewalls in production, with knowledge of TCP/IP, VLANs, NAT, VPNs, and QoS.
  • Ability to work independently in a remote environment with strong documentation discipline and effective customer communication.

Requirements:

  • Troubleshoot and resolve customer connectivity and performance issues across bonded WANs, wireless backhaul, CPE devices, VoIP quality, and routing configurations, with thorough documentation.
  • Provision and configure new customer connections, including router configurations, VLANs, firewall rules, and QoS policies.
  • Maintain and monitor core ISP infrastructure (wireless backhaul, bonded WAN links, edge routing devices) and manage link failovers and firmware updates.
  • Collaborate with internal engineering and field teams, escalate critical infrastructure issues, and maintain up-to-date network diagrams and records.

Job description

Job Title: ISP Network Support Engineer

Position Type: Full-Time, Remote
Working Hours: U.S. Hours

About the Role

We’re hiring a technically strong and proactive ISP Network Support Engineer to support both customer-facing troubleshooting and production network operations within a growing multi-WAN ISP environment.

This is not a basic helpdesk role. You will work directly with live network infrastructure β€” configuring routers, troubleshooting bonded links, supporting wireless backhaul, and maintaining high-availability systems across fiber, fixed wireless, and SD-WAN deployments.

The ideal candidate has hands-on experience in ISP, WISP, FTTH, or managed service provider environments and is comfortable balancing customer communication with deep technical execution.

What You’ll Own

Customer Support & Troubleshooting

  • Respond promptly and professionally to customer calls and emails related to connectivity and performance.
  • Diagnose and resolve issues involving bonded WAN connections, wireless links, VoIP quality, and routing misconfigurations.
  • Troubleshoot CPE devices, routers, and firewalls in live production environments.
  • Document troubleshooting steps, root cause analysis, and configuration changes accurately.
  • Participate in a rotating after-hours emergency support schedule (1 week per month).
  • Consult with business clients on connectivity optimization and redundancy strategies when needed.

Network Operations & Maintenance

  • Monitor and maintain core ISP infrastructure, including wireless backhaul, bonded WAN links, and edge routing devices.
  • Provision and configure new customer connections (router configuration, VLANs, firewall rules, QoS policies).
  • Troubleshoot BGP/OSPF routing issues and link failover events.
  • Configure and maintain MikroTik and Peplink devices in production.
  • Support tower deployments, backhaul upgrades, and infrastructure expansion projects.
  • Assist with firmware upgrades, configuration backups, and network hardening.
  • Maintain accurate network diagrams, IP addressing documentation, and system records.

Team Collaboration

  • Work closely with internal engineering and field teams to resolve complex network issues.
  • Escalate critical infrastructure issues appropriately while maintaining ownership.
  • Contribute to improving uptime, redundancy, and network optimization.
  • Share documentation and operational insights to improve team knowledge.

Must-Have Experience & Skills

  • Hands-on experience in an ISP, WISP, FTTH, or managed service provider environment.
  • Strong troubleshooting skills across routing, switching, and WAN connectivity.
  • Experience configuring routers and firewalls in production environments.
  • Solid understanding of TCP/IP, VLANs, NAT, VPNs, and QoS.
  • Experience working with BGP and/or OSPF.
  • Comfortable supporting both technical troubleshooting and customer communication.
  • Ability to work independently in a remote environment with strong documentation discipline.
  • Strong analytical and problem-solving mindset.

Strongly Preferred (Highly Relevant Experience)

  • Experience with Peplink (SpeedFusion, InControl2) in multi-WAN or bonded link environments.
  • Hands-on experience with MikroTik RouterOS.
  • Experience with fixed wireless (PTP/PMP) deployments using Cambium or Ubiquiti.
  • Familiarity with mmWave backhaul systems (Siklu, Aviat, or similar).
  • Experience supporting Starlink or hybrid WAN deployments.
  • VoIP troubleshooting experience (SIP, QoS prioritization).

Technical Environment

You will be working across a modern ISP infrastructure that includes:

  • SD-WAN & Link Bonding: Peplink (SpeedFusion, InControl2) bonding Starlink, 5G, and terrestrial links.
  • Fixed Wireless (PMP/PTP): Cambium and Ubiquiti networks.
  • High-Capacity Backhaul: Siklu (mmWave) and Aviat technologies.
  • Enterprise Wi-Fi: Cambium (cnMaestro) and Ubiquiti (UniFi).
  • Routing & Protocols: MikroTik (RouterOS), BGP, OSPF, VLAN segmentation.
  • VoIP: SIP troubleshooting and QoS optimization.

Key Metrics for Success

  • Fast, accurate resolution of support tickets.
  • High network uptime and minimal service disruption.
  • Successful provisioning and configuration of new customer connections.
  • Accurate and complete documentation of network changes.
  • Reduced repeat escalations and strong customer satisfaction.

Interview Process

  1. Initial Screening Call
  2. Technical Interview
  3. Practical Troubleshooting Scenario
  4. Final Interview
  5. Offer & Onboarding

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