Network Engineer

Five9

Network Engineer maintaining IP Networking components in a production SaaS environment at Five9. Involves managing network projects, troubleshooting issues, and enhancing connectivity standards.

Posted 6/19/2026full-time🇺🇸 United StatesMid-LevelSenior💰 $82,600 - $230,800 per yearWebsite

Tech Stack

Tools & technologies

iOSSwitching

About the role

Key responsibilities & impact

Participate in projects for new Network Product offerings and Network Operation improvements.
Integrate business partners and acquisitions into a supportable design.
Review and analyze history of network related incidents and perform preventive measures.
Troubleshoot network related issues and communicate with customers.
Assist in managing network service providers and equipment.
Provide capacity analysis and planning.
Assist customers and field personnel in network activations for customers.
Partner closely with Network Architects and Engineers to improve WAN network connectivity.
Partner with internal business units to best understand the organization's needs and continuously improve and apply standards for operational excellence.
Review, analyze and execute network change requests.
Occasionally interact with external customers to ensure smooth network activations and to troubleshoot any network connectivity related issues.

Requirements

What you’ll need

3-5 years of experience in Medium to large networks, IP Routing, Switching, and Security principles.
Demonstrate knowledge of platform operating systems (router platforms, LAN, WAN, and router protocols) MPLS, OSPF, and BGP, and how they interact with the network.
Demonstrate knowledge of real-time traffic queuing and prioritizing on LAN and WAN networks.
Demonstrated operational success with an exceptionally strong data-driven analytical approach towards solving complex challenges.
Experience with implementations of solutions involving large data centers, inter-business routing plans, site2site IPSEC VPNs, FWs and MPLS VPNs.
Hands-on skills for Cisco IOS-XE is required and Cisco IOS-XR and Nexus OS preferred, connect lab equipment, proof of concept; Documenting solutions with diagrams and proper description is required.
Knowledge and experience in Cisco Nexus 7k, ASR 1000 and 9000 Routers, SSL-VPN.
Excellent communications, both oral and written.

Benefits

Comp & perks

Health, dental, and vision coverage, beginning on the first day of employment.
Five9 covers 100% of the employee portion of the health, dental and vision coverage and shares a high portion of the dependent cost.
Short & Long-Term Disability.
Basic Life Insurance.
401k saving plan with employer matching.
Access to an innovative mental health support platform that offers personalized care and resources in areas such as: therapy, coaching and self-guided mindfulness exercises for all covered employees and their covered dependents.
Generous employee stock purchase plan.
Paid Time Off, Company paid holidays, paid volunteer hours and 12 weeks paid parental leave.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

IP RoutingSwitchingSecurity principlesMPLSOSPFBGPCisco IOS-XECisco Nexus 7kASR 10009000 Routers

Soft Skills

data-driven analytical approachcommunication skills