ISP Network Support Engineer

Pavago, Costa Rica
Apply Now

Position Type: Full-Time, Remote
Working Hours: U.S. Business Hours
On-Call: Rotating after-hours emergency support — approximately 1 week per month

About the Role

At Pavago, we’re hiring an ISP Network Support Engineer for one of our clients to support customer-facing troubleshooting and production network operations across a growing multi-WAN ISP environment.

This is not a basic helpdesk role. You’ll work directly with live network infrastructure across fiber, fixed wireless, bonded WAN, Starlink, and SD-WAN deployments, troubleshooting complex connectivity issues and maintaining reliable, high-availability services.

You’ll work hands-on with technologies including MikroTik RouterOS, Peplink SpeedFusion, BGP, OSPF, Cambium, Ubiquiti, Siklu, Aviat, and enterprise wireless infrastructure.

This role is particularly well suited to someone with hands-on ISP, WISP, FTTH, or MSP experience who is comfortable troubleshooting production networks while communicating directly with customers.

What You’ll Own

Customer Network Support & Troubleshooting

  • Diagnose customer issues involving:

    • Connectivity and outages
    • Latency and packet loss
    • Routing instability
    • VoIP and call-quality problems
    • WAN and failover performance
  • Troubleshoot bonded WAN, SD-WAN, VPN, VLAN, and wireless connectivity issues.

  • Support routers, firewalls, and Customer Premise Equipment (CPE).

  • Investigate issues across multiple layers rather than simply escalating tickets.

  • Document troubleshooting steps, root causes, and configuration changes.

  • Communicate technical findings clearly to business customers.

  • Advise customers on redundancy, failover, and network optimization.

  • Participate in rotating after-hours emergency support.

ISP Network Operations

  • Monitor and maintain:

    • Edge routing infrastructure
    • Wireless backhaul systems
    • Bonded WAN infrastructure
    • Core ISP services
  • Provision and configure customer network deployments.

  • Configure:

    • Routers
    • VLANs
    • Firewall rules
    • QoS
    • VPNs
  • Diagnose BGP and OSPF routing issues, routing loops, WAN instability, and failover events.

  • Maintain configuration backups, firmware updates, IP documentation, and network hardening standards.

MikroTik, Peplink & SD-WAN

  • Configure and troubleshoot MikroTik RouterOS environments.

  • Support Peplink SpeedFusion and InControl2.

  • Troubleshoot multi-WAN bonding and failover behavior.

  • Support hybrid connectivity involving:

    • Fiber
    • Fixed wireless
    • Starlink
    • Terrestrial WAN connections
  • Optimize redundancy and high-availability configurations.

Fixed Wireless & Backhaul Infrastructure

  • Support fixed wireless environments using:

    • Cambium
    • Ubiquiti
    • PTP/PMP architectures
  • Work with high-capacity wireless backhaul technologies including:

    • Siklu
    • Aviat
    • mmWave infrastructure
  • Support tower deployments, backhaul upgrades, and infrastructure expansion.

  • Troubleshoot signal, connectivity, capacity, and backhaul performance issues.

VoIP & QoS

  • Troubleshoot SIP and VoIP quality issues.
  • Diagnose network conditions affecting voice traffic.
  • Configure and optimize QoS policies.
  • Prioritize latency-sensitive traffic appropriately.
  • Help maintain consistent voice quality across multi-WAN environments.

Documentation & Configuration Management

  • Maintain accurate:

    • Network diagrams
    • IP documentation
    • Device configurations
    • Troubleshooting records
    • Configuration backups
  • Document root-cause findings and remediation steps.

  • Keep infrastructure documentation current following network changes.

  • Help reduce repeat incidents through accurate documentation and preventative improvements.

Technical Environment

You may work across:

Routing & Networking

  • MikroTik RouterOS
  • VLANs
  • QoS
  • VPNs

SD-WAN & Multi-WAN

  • Peplink
  • SpeedFusion
  • InControl2
  • Starlink
  • WAN bonding and failover

Wireless & Backhaul

  • Cambium
  • Ubiquiti
  • Siklu
  • Aviat
  • mmWave

Enterprise Wi-Fi

  • Cambium cnMaestro
  • UniFi

Voice

  • VoIP
  • QoS and voice optimization

Required Experience & Skills

  • Hands-on networking experience within an ISP, WISP, FTTH, MSP, or similar production network environment.

  • Strong experience troubleshooting:

    • Routing
    • Switching
    • WAN connectivity
    • Network outages
    • Failover systems
  • Hands-on experience configuring:

    • Routers
    • Firewalls
    • VLANs
    • VPNs
  • Strong understanding of:

    • QoS
    • VLANs
  • Ability to troubleshoot live production networking issues methodically.

  • Strong documentation and root-cause analysis skills.

  • Strong written and verbal English communication.

  • Ability to communicate effectively with both technical teams and customers.

  • Comfortable working independently in a remote environment.

  • Availability for rotating after-hours emergency support.

Strongly Preferred

  • Hands-on MikroTik RouterOS expertise.

  • Experience with Peplink, SpeedFusion, and InControl2.

  • Experience with:

    • Cambium
    • Ubiquiti
    • Siklu
    • Aviat
  • Fixed wireless or WISP deployment experience.

  • PTP/PMP and mmWave backhaul experience.

  • Starlink or hybrid WAN experience.

  • VoIP troubleshooting experience involving:

    • QoS
    • Voice-quality optimization
  • Experience supporting multi-WAN and high-availability network environments.

What Makes You a Strong Fit

  • You’ve worked on real production networks, not only lab environments.
  • You can troubleshoot complex connectivity problems without immediately escalating them.
  • You understand how routing, WAN links, wireless infrastructure, and failover interact.
  • You remain calm and methodical during outages.
  • You care about uptime, redundancy, and network reliability.
  • You can explain complex network problems clearly to customers.
  • You take ownership of an issue through diagnosis and resolution.
  • You proactively look for ways to prevent repeat incidents.

What a Typical Day Looks Like

Your day may include:

  • Troubleshooting customer connectivity, latency, and routing issues.
  • Investigating BGP/OSPF or multi-WAN failover problems.
  • Configuring MikroTik routers, VLANs, VPNs, firewalls, and QoS.
  • Monitoring wireless backhaul and ISP infrastructure.
  • Provisioning new customer connections.
  • Troubleshooting Peplink SpeedFusion or bonded WAN deployments.
  • Investigating VoIP quality issues.
  • Supporting infrastructure expansions and network upgrades.
  • Updating configuration records and network diagrams.
  • Coordinating with engineering and field teams on escalations.

In short: you help keep production ISP infrastructure stable, scalable, and highly available while solving complex customer and network issues across modern wired, wireless, and SD-WAN environments.

Key Metrics for Success

  • Fast and accurate ticket resolution.
  • High network uptime and reliability.
  • Reduced repeat incidents and escalations.
  • Successful customer provisioning.
  • Effective resolution of routing and failover issues.
  • Accurate network documentation and configuration management.
  • Strong customer satisfaction and communication quality.

Why This Role Stands Out

  • Hands-on exposure to real ISP/WISP production infrastructure.

  • Work directly with BGP, MikroTik, Peplink, SD-WAN, wireless backhaul, and multi-WAN environments.

  • Exposure to modern connectivity technologies including Starlink and hybrid WAN.

  • Strong technical ownership rather than basic Tier 1 support.

  • Opportunity to work across both customer-facing troubleshooting and infrastructure operations.

  • Clear growth opportunities into:

    • Senior Network Engineer
    • ISP Network Engineer
    • Infrastructure Engineer
    • Network Operations Lead
    • Network Architect

Interview Process

  • Initial Screening Call
  • Technical Interview
  • Practical Network Troubleshooting Scenario
  • Final Interview
  • Offer & Onboarding

Apply Now

If you have hands-on ISP/WISP networking experience, understand BGP, MikroTik, multi-WAN, SD-WAN, and wireless infrastructure, and enjoy solving complex production networking problems, we’d love to hear from you.

Apply today and help maintain reliable, high-performance connectivity across modern ISP and hybrid network environments.

#NetworkEngineer #ISPJobs #WISP #MikroTik #Peplink #BGP #SDWAN #NetworkSupport #NetworkOperations #WirelessNetworking #Ubiquiti #Cambium #Starlink #VoIP #RemoteJobs #NetworkingJobs