← All Roles
Posted May 26, 2026

Senior Core Network Engineer

Description: • Lead peering, caching, transit infrastructure design, and IP planning for the network edge. • Optimize traffic engineering, IX/Transit/CDN integrations, and capacity planning to improve latency and cost efficiency. • Partner with software and Network Reliability Engineering teams to design and develop the network automation stack. • Advance low-touch and zero-touch operations and rapid configuration deployment across core and edge networks. • Define and evolve standards for network observability and health using telemetry, fault management, and incident data. • Implement auto-remediation strategies based on actionable operational insights. • Serve as Tier-3 escalation for complex routing, convergence, and large-scale DDoS issues. • Contribute to root cause analysis and develop remediation workflows to prevent repeat incidents. • Collaborate with Product and Software teams to enable advanced service offerings such as L2/L3 VPNs and DIA. • Influence vendor roadmaps to align with GFiber’s business goals. Requirements: • Bachelor’s degree in Computer Science, Electrical Engineering, a related field, or equivalent practical experience. • 7 years of experience in service provider network design and operations with high-availability core environments. • Knowledge of IP/MPLS protocols including BGP v4/v6, IS-IS/OSPF, Segment Routing (SR-MPLS/SRv6), RSVP-TE, and EVPN. • Experience with network troubleshooting and packet-level analysis tools such as NetFlow, SNMP, Wireshark, and TCPdump. • Direct experience with multi-vendor platforms such as Juniper, Nokia, Arista, or Cisco. • Experience with automation and scripting for device configuration and validation using Python, Go, Ansible, or Netconf/YANG. • Experience in incident management, telemetry design, and maintaining high-availability systems in a large production network. • Experience with end-to-end automation workflows and event-driven automation concepts (preferred). • Familiarity with Site Reliability Engineering principles in a network context, including SLO/SLA definition and error budget management (preferred). • Experience with modern telemetry stacks such as Prometheus, Grafana, or custom alerting systems (preferred). • Deep understanding of BGP attributes and traffic engineering across an ISP core network (preferred). • JNCIE-SP, CCIE Service Provider, or equivalent deep industry experience (preferred). Benefits: • US base salary range of $139,200 to $203,300. • Eligibility for bonus and cash award. • Benefits package included. • Application window open until at least May 18, 2026. • Equal opportunity employment across protected characteristics. • Accessible and inclusive workplace with applicant accommodations available.