Jobs at Five9

The Senior Platform Configuration Engineer at Five9 will manage the implementation and configuration of cloud contact center solutions, lead projects, mentor colleagues, and optimize client solutions through advanced integrations and technical expertise.

Design, automate, and operate large-scale distributed systems. Build tooling for availability, scalability, and efficiency. Partner with engineering teams on CI/CD, monitoring, incident management, and SRE practices; participate in on-call rotations.

Lead a team of test engineers to own end-to-end QA strategy for cloud SaaS products. Drive test automation framework design, CI/CD integration, performance/security/reliability testing, production on-call support, and adoption of AI-powered testing. Mentor, hire, and report to engineering leadership while collaborating cross-functionally to improve release confidence and system stability.

Lead modernization of legacy Linux systems and build internal tooling to automate operations. Implement observability (SLIs/SLOs, dashboards, alerts), manage CI/CD and IaC, participate in on-call/incident response, optimize cloud costs and capacity, and maintain security/compliance for production services.

The People Operations Representative will manage HR processes like employee lifecycle transactions and provide tier 1 HR support, ensuring compliance and data integrity.

The Senior Mid-Market Account Director manages existing customer relationships and drives sales strategy, focusing on upselling and cross-selling Five9 products while exceeding sales targets.

As a Software Engineer II, you'll design and maintain backend solutions, build scalable systems, collaborate with teams, and mentor engineers.

The Senior Director, Network Reliability leads and rebuilds the network function, focusing on modernizing operations, team development, and enhancing network performance and automation.

Design, implement, and operate large-scale DNS and multi-tenant Kubernetes infrastructure in private cloud. Automate provisioning with IaC (Ansible, Terraform/Pulumi, Python), build CI/CD and GitOps pipelines, implement monitoring/alerting (Prometheus/Loki/Grafana), harden for HA and DR, perform deep troubleshooting across storage, hypervisors and networking, participate in on-call incident response, and collaborate on change management with global teams.

Design, automate, deploy, and operate large-scale software-defined storage and Kubernetes platforms in a private cloud. Build IaC and GitOps workflows (Ansible, Terraform, Helm, Git), implement CI/CD for infra, manage backups, monitoring, and observability, troubleshoot cross-domain issues, participate in on-call/incident response, and produce runbooks and documentation.

Lead modernization of internal platform tooling to 12-factor apps, delivering full-stack services (Go/Python + React/Vue), instrumenting observability (Grafana/Prometheus/Loki), driving Kubernetes-native GitOps (ArgoCD/GitLab CI), mentoring developers, and automating infrastructure with Ansible/Terraform on private/bare-metal clouds.

Manage SaaS revenue accounting: review contracts, ensure ASC 606-compliant revenue recognition, prepare journal entries and deal summaries, support month/quarter close and audits, resolve billing/revenue issues, and drive process/SOX improvements across order-to-cash.

Operate and lead data-center LAN infrastructure in a 24/7 SaaS environment. Own troubleshooting, incident response, and change management across Cisco Nexus, Palo Alto, and F5 platforms. Drive projects, architecture (VXLAN/EVPN), automation (Ansible, Terraform, Python), observability (Prometheus, Grafana, SolarWinds), and cloud networking (AWS, GCP). Mentor junior engineers, participate in on-call rotation, and define operational standards, reliability metrics (SLI/SLO), and preventive engineering.

Architect, implement, and operate a multi-tenant OpenStack private cloud. Automate provisioning with Ansible/Terraform/Pulumi, extend core OpenStack services, build CI/CD update pipelines, implement monitoring/observability, harden for HA and DR, perform deep troubleshooting, and participate in on-call incident response and upstream contributions.

Monitor cloud infrastructure performance, respond to incidents, escalate issues, and configure customer applications. Requires 1 year of experience in software support.

The Enterprise Sales Director drives revenue by creating and closing sales within North America, managing accounts, and ensuring customer satisfaction.

The Senior DevOps Engineer will design and automate large-scale systems, build tools for availability and efficiency, monitor environments, and collaborate on software improvements.

The Enterprise Sales Director is responsible for acquiring new customers, driving revenue, and maintaining customer satisfaction through the sales cycle in North America.

The Senior Network Engineer will lead the Network Operations team in designing scalable network solutions, driving automation, and enhancing network security while ensuring operational excellence.

The Staff Software Engineer will design, develop, and maintain frontend solutions for Five9, focusing on creating high-performance applications, mentoring engineers, and implementing best practices.