Manager, Network and Infrastructure

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 seeking a Platform Engineering Infrastructure Manager based in Porto, Portugal to support the operations, reliability, and modernization of its private cloud and platform engineering environment. This role sits at the center of local engineering leadership across compute, storage, virtualization, Kubernetes, and platform services, while helping drive engineering maturity across globally distributed infrastructure teams.

This role is well suited for a technical manager with hands-on experience building and operating modern infrastructure and platform engineering environments. The right candidate brings solid platform engineering depth alongside strong communication, operational leadership, and team coordination skills to maintain stability, improve engineering practices, and support ongoing modernization initiatives. The environment includes private cloud infrastructure built on OpenStack and Kubernetes, shared platform services, Infrastructure as Code, CI/CD tooling, observability platforms, and AI compute capabilities supporting mission-critical engineering workloads.

This is a hands-on operational leadership role. The right candidate will stay close to production operations, escalations, team execution, and platform reliability while building an engineering culture where accountability and operational discipline are the norm. What You Will Own Operational Leadership: Day-to-day operational leadership for the Portugal-based Platform Engineering Infrastructure team.

Cross-Domain Coordination: Coordination and execution across compute, storage, virtualization, Kubernetes, platform services, and private cloud environments. Network Platform Event Management: Direct operational leadership in detecting, triaging, and managing responses to critical network and infrastructure events, ensuring rapid mitigation and minimal business impact. Incident Change Management: Team execution across infrastructure operations, platform reliability, incident response, change management, on-call health, and operational readiness.

Modernization Workflows: Driving Infrastructure as Code, automation frameworks, CI/CD tooling, observability platforms, and standardized operational workflows with the team. Platform Services Ownership: Operational ownership of core platform services including compute and virtualization platforms, storage, Kubernetes, observability tooling, secrets management, CI/CD systems, registries, and identity services. Global Coordination: Coordination and partnership across Network Engineering, Security, Production Operations, Cloud Engineering, and global infrastructure teams to align network event handling protocols and post-incident root-cause analyses.

Team Development: Team mentorship, onboarding, career development, and building engineering capability within the local organization. Hands-on Mentorship: The team’s progression toward modern platform practices, working alongside engineers day to day to build capability and move operations forward. Escalation Communication: Escalation management, stakeholder communication, and operational coordination during severe incidents, network outages, and production events.

What We Require Experience: 7+ years of experience in platform engineering, infrastructure operations, DevOps, or infrastructure environments. Leadership: Experience leading technical teams in a platform engineering or infrastructure environment, with a track record of developing engineers and driving team capability forward.