Senior Network Administrator - Juniper Junos & Cisco Expert

FDC Servers (AS30058) is a global dedicated server, colocation, and IP transit provider operating across 27+ cities with 100+ Tbps of installed capacity. We're hiring a Senior Network Administrator with strong hands-on Juniper Junos experience and working Cisco knowledge to help run a production service-provider and data center network.

This is a hands-on production role. You'll troubleshoot complex routing and connectivity issues, safely apply changes in a live environment, support customer-facing network services, and contribute to architecture and capacity planning. You won't be redesigning the network, but you should understand the existing architecture well enough to judge how a change affects routing, redundancy, and customers. Experience in an ISP, hosting, data center, NOC, or service-provider environment is what we're after.

This is a fully remote role. We have established network teams in the US and EU and are building out coverage in the Asia/APAC time zone, so you'll own an important part of our follow-the-sun rotation.

KEY RESPONSIBILITIES

• Configure, maintain, and troubleshoot Juniper routers and switches in production.
• Support Cisco equipment as needed (IOS-XR, IOS-XE, NX-OS).
• Configure and troubleshoot BGP sessions, routing policy, prefix filters, communities, AS paths, and route advertisements.
• Support customer BGP, BYOIP announcements, static routes, IP allocations, VLANs, and routed customer services.
• Troubleshoot ISIS/BGP, packet loss, latency, routing asymmetry, reachability, MTU, interface errors, and customer connectivity.
• Work with transit providers, IX peers, data centers, remote hands, and internal ops.
• Prepare, review, validate, and apply Juniper set-style configuration changes (before and after).
• Participate in architecture discussions, capacity planning, and redundancy reviews.
• Assist with circuit turn-ups, port migrations, hardware/software upgrades, backbone maintenance, and expansion projects.

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• Respond to escalated, customer-impacting incidents.
• Maintain accurate documentation, change notes, and troubleshooting records.
• Mentor L2 staff and assist with escalations.

REQUIRED EXPERIENCE

• Strong hands-on Juniper Junos in a live production environment.
• Working Cisco knowledge (IOS, IOS-XE, NX-OS / Nexus).
• Strong grasp of ISIS, SRv6, EVPN, IP/MPLS, BGP, RPKI, routing policy, prefix lists, route filters, and BGP best-path selection.
• L2 tunneling, anycast gateways, VLANs, trunk/access ports, LACP/LAG, IRB/SVI, and L2/L3 troubleshooting.
• Read, write, review, and safely apply Juniper set-style config.
• Strong IPv4/IPv6 subnetting.
• Troubleshooting with ping, traceroute, MTR, tcpdump, interface counters, route tables, logs, and looking-glass tools.

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• Understand customer impact before making changes; work independently with sound judgment.
• Strong written English for customer updates, internal notes, and escalation summaries.
• ISP / hosting / data center / NOC / service-provider background strongly preferred.

PREFERRED SKILLS

• Cisco Nexus platforms.
• Transit providers, IXes, route servers, peering, IRR, RPKI/ROA, AS-SETs, LOA validation.
• Monitoring: PRTG, LibreNMS, Prometheus, Grafana, or similar.
• Automation/documentation: NetBox, Git, Oxidized, Ansible, Python.
• DDoS response, RTBH, traffic engineering, carrier escalations.
• Linux networking and server-side troubleshooting.
• Remote-hands coordination for turn-ups, optic swaps, cabling, hardware replacement.
• HOW TO APPLY To apply, email [email protected] with your CV and a short note covering the following: briefly describe a production BGP or routing issue you personally diagnosed and fixed — what the symptom was, how you isolated it, and the exact Junos commands you used. Applications without this will not be reviewed.