Five9

Cloud-based contact center software provider

Senior DevOps Network Engineer

Network Engineering & AdministrationConfirmed live in the last 24 hours

Full-timeRemote in IndiaNo salary listed

About the Job

Requirements

At least 5 years of progressive experience in Network Engineering, DevOps, or SRE roles, with a focus on large-scale network design, automation, and Infrastructure-as-Code.
Expert proficiency with Ansible, Terraform, and Python for network automation, including network-specific libraries such as Netmiko, Nornir, or NAPALM.
Design and operational expertise with large-scale software-defined networks and overlays, including VXLAN, OVN, and Project Calico.
Mastery of Kubernetes networking designs, including CNIs, Ingress controllers, Service Mesh, and Kube-Proxy behaviors, at enterprise scale.
Experience with enterprise edge, routing, and security fabrics, including Cisco Nexus, Arista, Versa SD-WAN, Palo Alto, and Fortinet.
Knowledge of API-driven application delivery and load balancing, including F5 BIG-IP AS3, Cloudflare APIs, and Octavia LBaaS.
Linux internals and networking expertise, including network namespaces, virtual interfaces, eBPF/iptables, and kernel-level routing.
CCIE-level or equivalent mastery of BGP, OSPF, MPLS, and EVPN, and understanding of how virtual/container overlay networks map to physical underlays.
Experience designing and scaling CI/CD platforms such as GitLab CI, Jenkins, or GitHub Actions, and implementing test-driven development for infrastructure changes.
Troubleshooting capability using packet analysis tools such as tcpdump and Wireshark, NetFlow, and log aggregation platforms to investigate asymmetric routing and microburst traffic across hybrid fabrics.
Technical leadership experience, including mentoring mid-level engineers, leading design review boards, and driving cross-functional engineering initiatives.
Exceptional verbal and written communication skills to explain complex technical concepts to executive stakeholders and support a collaborative DevOps-oriented engineering culture.

Responsibilities

Design, engineer, and oversee scalable CI/CD pipelines for automated testing, digital-twin dry runs, and zero-downtime configuration deployments across physical and virtual network fabrics.
Establish enterprise GitOps workflows and enforce Git source control as the single source of truth for network state, policy, and infrastructure design.
Set the strategic direction for network automation and design reusable code frameworks and playbooks to eliminate manual configuration and operational toil at global scale.
Design and optimize software-defined networks and container networking interfaces for high-throughput, multi-region cloud and bare-metal environments.
Act as the Tier 4 technical authority for complex network, routing, and overlay issues across physical underlays and software-defined layers.
Design and implement telemetry, monitoring, and alerting-as-code platforms, using heuristics for proactive automated remediation of performance, security, and capacity issues.
Partner with Enterprise Designers, SRE leaders, and Platform teams to build resilient, secure, and multi-tenant-isolated network infrastructure.
Establish coding standards and write and review Infrastructure-as-Code using Ansible, Terraform, Helm, Python, and Bash.
Lead the engineering, deployment, and optimization of overlay and container networking solutions, including VXLAN, OVN, and Project Calico.
Automate security and traffic-management policies across firewalls and load balancers, including Palo Alto, Fortinet, F5 BIG-IP, Cloudflare, and Octavia.
Integrate Security-as-Code into CI/CD pipelines and build automated validation gates for security groups, access control lists, and firewall rules before production deployment.
Engineer automated network validation suites to verify network health, state, and routing tables such as BGP and OSPF before and after deployment.
Promote code-based infrastructure definitions and dynamic technical documentation, including NetBox and Git Markdown, and establish documentation standards across the engineering organization.

Desired Qualifications

A telecommunications background covering VoIP, RTP, SIP peering or trunking, and Session Border Controllers.

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software, bringing the power of cloud innovation to customers worldwide.

Living our values everyday results in our team-first culture and enables us to innovate, grow, and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves.

Five9 is a leading provider of cloud software for the enterprise contact center market, bringing the power of the cloud to thousands of customers and facilitating more than three billion customer interactions annually. Since 2001, Five9 has led the cloud revolution in contact centers, helping organizations transition from legacy premise-based solutions to the cloud. Five9 provides businesses with cloud contact center software that is reliable, secure, compliant and scalable, which is designed to create exceptional customer experiences, increase agent productivity and deliver tangible business results.

Role Overview
To complement our rapid growth, we are actively sourcing for a Network Engineer to operate in a 24/7 Software-as-a-Service (SaaS) environment maintaining IP Networking components in a production setting.
In this role you will:

Design, engineer, and oversee highly scalable CI/CD pipelines for automated testing, digital-twin dry-running, and zero-downtime deployment of configurations across massive physical and virtual network fabrics.
Champion the "Network-as-Code" paradigm, establishing enterprise-wide GitOps workflows and enforcing source control (Git) as the absolute single source of truth for all network state, policy, and infrastructure design.
Drive the strategic vision for network automation, designing complex, reusable code frameworks and Playbooks to permanently eliminate manual configuration and operational "toil" at a global scale.
Design and optimize massive-scale software-defined networks (SDN) and container networking interfaces (CNIs) supporting ultra-high-throughput, multi-region cloud and bare-metal environments.
Serve as the ultimate technical authority (SME / Tier 4) for complex network, routing, and overlay issues, rapidly deciphering and resolving the most difficult challenges across physical underlays and software-defined layers.
Design and implement next-generation telemetry, monitoring, and alerting-as-code platforms, leveraging advanced heuristics for proactive auto-remediation of performance, security, and capacity issues.

Key Responsibilities

Partner at a strategic level with Enterprise Designers, SRE leaders, and Platform teams to build and implement highly resilient, secure, and multi-tenant-isolated network infrastructure.
Establish coding standards and write/review sophisticated Infrastructure-as-Code (IaC) using Ansible, Terraform, Helm, Python, and Bash.
Lead the engineering, deployment, and optimization of modern overlay and container networking solutions, particularly VXLAN, OVN (Open Virtual Network), and Project Calico.
Design the automation of complex security and traffic management policies across enterprise-grade firewalls (Palo Alto/Fortinet) and load balancers (F5 BIG-IP/Cloudflare/Octavia).
Embed "Security-as-Code" directly into CI/CD pipelines, engineering automated validation gates for security groups, ACLs, and firewall rules prior to production pushes.
Engineer robust, automated network validation suites to continuously verify network health, state, and complex routing tables (BGP, OSPF) pre- and post-deployment.
Drive the adoption of code-based infrastructure definitions and dynamic, living technical documentation (e.g., NetBox, Git Markdown), setting the standard for documentation across the engineering organization.

Qualifications & Skills

5+ years of progressive experience in Network Engineering, DevOps, or SRE roles, with a deeply established focus on large-scale network design, automation, and Infrastructure-as-Code (IaC).
Expert-level proficiency in engineering complex network automation tooling utilizing Ansible, Terraform, and Python (including deep experience with network-specific libraries like Netmiko, Nornir, or NAPALM).
Deep design and operational expertise with massive-scale software-defined networks (SDN) and overlays, specifically VXLAN, OVN, and Project Calico.
Advanced mastery of Kubernetes networking designs (CNIs, Ingress controllers, Service Mesh, Kube-Proxy behaviors) at an enterprise scale.
Extensive, expert-level experience engineering and automating enterprise edge, routing, and security fabrics, including Cisco Nexus (9k/7k/5k/2k), Arista, Versa SD-WAN, and firewalls (Palo Alto and Fortinet).
Authoritative knowledge of API-driven application delivery and load balancing across monolithic and cloud-native stacks (e.g., F5 BIG-IP AS3, Cloudflare APIs, Octavia LBaaS).
Deep Linux internals and networking expertise, including advanced knowledge of Linux network namespaces, virtual interfaces, eBPF/iptables, and kernel-level routing.
CCIE-level (or equivalent) mastery of core routing protocols (BGP, OSPF, MPLS, EVPN) and a comprehensive understanding of how virtual/container overlay networks map to physical underlays.
Extensive experience designing and scaling CI/CD platforms (e.g., GitLab CI, Jenkins, GitHub Actions) and implementing test-driven development (TDD) for infrastructure changes.
Unparalleled troubleshooting capabilities utilizing advanced packet analysis (tcpdump/Wireshark), NetFlow, and log aggregation platforms to trace asymmetric routing and microburst traffic across hybrid fabrics.
Proven track record of technical leadership, including mentoring mid-level engineers, leading design review boards, and driving cross-functional engineering initiatives.
Deep telecommunications background, specifically VoIP, RTP, SIP peering/trunking, and Session Border Controllers (SBC), is highly advantageous.
Exceptional verbal and written communication skills, with the ability to translate complex technical concepts to executive stakeholders while fostering a collaborative, DevOps-oriented engineering culture.

Diversity & Inclusion
Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills. The more inclusive we are, the better we are. Five9 is an equal opportunity employer.

Work Location: This role is fully remote for candidates who reside outside the 30 mile radius of one of our offices. For candidates who reside within a 30 mile radius of one of our offices, this role is Hybrid and would require 3 days a week (T, W, TH) in office.

Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds, perspectives, and skills.  The more inclusive we are, the better we are.  Five9 is an equal opportunity employer.

Five9 is committed to providing reasonable accommodations for qualified individuals with disabilities throughout the application and interview process. If you need assistance or an accommodation due to a disability, please contact us at [email protected] to request an accommodation. Requests will be handled confidentially and in accordance with applicable law.

View our privacy policy, including our privacy notice to California residents here: https://www.five9.com/pt-pt/legal.

Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

About the Company

Five9

Cloud-based contact center software provider

Five9 provides cloud-based contact center software for inbound and outbound calls. Its platform includes advanced call routing, predictive dialing, IVR self-service, and reporting, all delivered as a subscription in the cloud. It differentiates itself with scalable cloud deployment, strong security, and training options through Five9 University. Its goal is to help organizations of all sizes improve customer service efficiency by managing customer interactions across channels.

Company size: 1,001-5,000
Company stage: IPO
Headquarters: San Ramon, CA
Founded: 2001

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