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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Engineer III - **Company:** FIBER CORE LLC - **Location:** United States (Remote available) - **Experience:** Experienced - **Salary:** $85,509.0 - $150,000.0 - **Contract:** Permanent contract - **Skills:** Border Gateway Protocol, Dynamic Host Configuration Protocol, Intrusion Detection Systems, Virtual Private Networks (VPN), Multi-protocol Systems, OSI Models, Junos, Python (Programming Language), Network Troubleshooting, Windows PowerShell, Signal Integrity, Wireless Networks, Diagnostic Tools, Scripting, Authentication Authorization Accounting (Server Program), XGS-PON, Juniper - **Published:** July 24, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=e2cdfebdc111b863 ## About the Role * Bachelor's degree or equivalent technical experience. * 4-7 years of experience in network engineering, ISP operations, or telecom environments. * Certs: JNCIP-SP / JNCIE-SP strongly preferred; CCNP/other vendor certs a plus. Knowledge & Skills * Expert-level Juniper Junos on MX/QFX-class platforms (required). * Deep operational knowledge of IS-IS, BGP, MPLS, EVPN-VXLAN, VRF, QoS and advanced routing/switching. * Familiarity with G.8032, CG-NAT (NetElastic a plus), and IRR/RPKI routing hygiene. * Strong security understanding including firewall architecture, VPNs, AAA, IDS/IPS, and segmentation. * Lead complex troubleshooting efforts and interpret advanced diagnostic data. * Strong documentation, leadership, and communication skills. * Scripting/automation (Python or PowerShell) and infrastructure-as-source-of-truth (NetBox) discipline. Physical Demands and Work Environment The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the functions. Physical Demands * Prolonged periods of working at a computer. * Occasional lifting of equipment up to 70 lbs. * Travel to remote network sites across multiple states, including rural locations. A valid driver's license is required. ## Description The Network Engineer III is a senior-level engineering role responsible for high-complexity network troubleshooting, system design, capacity planning, and advanced diagnostics. This position acts as an escalation point for Network Engineer I & II and works closely with the Senior Network Architect on architectural improvements, security enhancements, and major infrastructure projects. The Network Engineer III plays a key role in ensuring stability, scalability, and performance across fiber and wireless networks., The essential functions include, but are not limited to the following: * Design, configure, and operate the Juniper (Junos) routed core and aggregation: IS-IS, BGP, MPLS (LDP/RSVP), L2VPN/L3VPN, and EVPN-VXLAN/EVPN-MPLS across the core and PE edges. * Own access-layer engineering on Calix AXOS (E7/E9, GPON/XGS-PON) including dual-PE designs and DHCP relay. * Performs advanced diagnostics across multiple OSI layers, identifying root causes of service-impacting or chronic issues. * Design and troubleshoot G.8032-protected access rings and backhauls. * Leads troubleshooting for escalated fiber, wireless, routing, firewall, and security issues across service areas. * Conducts capacity planning and analyzes network growth trends to support future expansions. * Perform and/or guide advanced testing such as OTDR analysis, optical budget validation, RF spectrum analysis, and transport signal integrity.[A1] [A2] * Evaluates and implements network improvements to enhance reliability, redundancy, and performance. * Develops and enforces engineering standards, configuration templates, and security policies. * Works closely with the NOC on outage resolution, root cause analysis, and post-incident reviews. * Leads engineering support for new builds, upgrades, ring designs, backhaul improvements, and architecture migrations. * Collaborates with vendors on complex support cases, platform bugs, or feature requests. * Creates advanced documentation, engineering diagrams, and SOPs for operational teams. * Mentors Network Engineer I and II team members, providing guidance on troubleshooting and design principles. * Acts as a technical subject matter expert for cross-functional teams and leadership., * Remote work environment with occasional travel to company office locations as business needs require. * May require occasional on-site work in headend/CO environments or equipment rooms. * Participates in a shared on-call rotation and in after-hours maintenance windows, major cutovers, and outage response. * High-complexity engineering environment requiring deep technical focus. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Best Job Search Websites of 2025](https://www.wearedevelopers.com/magazine/368-the-best-job-search-websites-of-2025) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Paying Remote Jobs](https://www.wearedevelopers.com/magazine/255-best-paying-remote-jobs) - [Best Job Boards for Remote Work for Developers](https://www.wearedevelopers.com/magazine/290-best-job-boards-for-remote-work-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)