Senior OpenStack DevOps Engineer

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.We are seeking a highly experienced Senior OpenStack DevOps Engineer to architect, implement, and support our community-driven OpenStack-based private cloud infrastructure. You will be directly responsible for ensuring the scalability, resilience, automation, and performance optimization of our cloud environment by leveraging Infrastructure-as-Code (IaC) tools like Ansible, and Terraform, or Pulumi.This is a deeply technical role requiring expert-level understanding of OpenStack internals across major projects including Neutron, Octavia, Manila, Cinder, Nova, Ironic, and Glance. You will also collaborate with platform and SRE teams to maintain secure, performant, and multi-tenant-isolated services that serve high-throughput, mission-critical applications.Key ResponsibilitiesDesign and implement multi-tenant OpenStack infrastructure aligned with open community standards, including network service isolation and tenant-aware resource schedulingAutomate the provisioning, lifecycle management, and configuration of OpenStack services and supporting components using Ansible, Terraform, or PulumiExtend and maintain integrations for core OpenStack services:Neutron: Custom network plugins/drivers, L2/L3 routing, BGP, DHCP, and tenant network segmentation (VLAN, VXLAN, Geneve)Octavia: HA load balancing with amphora and provider drivers, TLS offloading, Layer 4/7 routingManila: Share drivers for NFS/CIFS, tenant access control, storage backendsCinder: Block storage provisioning, volume snapshots, multi-attach, backend tuningNova: Compute resource scheduling, NUMA/cpu pinning, SR-IOV and PCI passthroughIronic: Bare metal provisioning workflows, BIOS/IPMI automation, PXE and UEFI boot configurationGlance: Image lifecycle management, backing store optimization, image caching strategiesContribute to upstream OpenStack projects when needed (bug fixes, driver enhancements, documentation)Implement continuous delivery pipelines for OpenStack updates, including patch management, service upgrade testing, and rollback proceduresDevelop automated monitoring, alerting, and healing mechanisms using GitOps principles and observability stacks (e.g., Prometheus, Loki, Grafana)Harden services for high availability, disaster recovery, and scale-out operationsPerform deep-dive troubleshooting and performance analysis of OpenStack services across control and data planesParticipate in on-call rotation, incident response, and root cause analysis for platform reliability issuesMinimum Qualifications5+ years of experience operating and automating large-scale OpenStack cloud environments, preferably in community-driven or upstream-contributing teamsExpert-level proficiency in Infrastructure-as-Code with Ansible, Terraform, or PulumiStrong hands-on knowledge of Neutron, Octavia, Manila, Cinder, Nova, Ironic, and GlanceStrong Linux (RHEL/CentOS/Ubuntu) systems engineering background with advanced scripting in Python, Bash, or GoFluency with Git, CI/CD pipelines, and automated test frameworksStrong understanding of L2/L3 networking, SDN overlays (VXLAN, Geneve), load balancing (Octavia), and storage protocols (SDS) (iSCSI, NFS, CEPH)Demonstrated success building or maintaining multi-region or high-availability OpenStack clustersExperience with container technologies (e.g., Docker) and orchestration tools (e.g., Kubernetes) is a plusAbility to write technical documentation and contribute to community wikis or knowledge basesPreferred QualificationsContributions to upstream OpenStack codebases or participation in SIGs/WGsFamiliarity with RBAC, Keystone federation, Barbican (secrets management), and Ceilometer/Gnocchi/AodhUnderstanding of security best practices for tenant isolation, microsegmentation, and compliance (e.g., CIS, NIST)Background in telco, edge cloud, or large enterprise infrastructure environmentsExperience building and maintaining automated test environments for OpenStack upgrades and validation (e.g., Tempest, Rally, or custom test harnesses)Bachelor’s degree in computer science, IT, Engineering, or a related field preferred; equivalent experience and relevant industry certifications will also be consideredWhat You’ll GetA collaborative team that’s deeply invested in open source, community contribution, and infrastructure excellenceComplex technical challenges that require creative, scalable solutionsThe opportunity to shape a next-generation private cloud platform built on true open infrastructure principlesAccess to the latest tools, frameworks, and upstream project developmentsSkills and Attributes:Analytical Thinking & Problem Solving: Demonstrated ability to translate complex, cross-domain requirements into scalable and resilient cloud infrastructure and automation solutionsCollaboration & Teamwork: Strong interpersonal and communication skills with a proven track record of effective collaboration across multidisciplinary teams, including developers, operations, security, and product stakeholdersMentorship & Leadership: Passionate about knowledge-sharing and mentorship, with experience guiding junior engineers and fostering a team culture of continuous learning, innovation, and technical excellence in cloud engineering and DevOps practicesWork 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.As part of our continued commitment to diversity, equity, and inclusion, Five9 supports pay transparency during the entire recruitment process. Actual compensation packages are based on several factors that are unique to each candidate including, but not limited to: skill set, depth of experience, certifications, and specific work location. The range displayed reflects the minimum and maximum target for new hire salaries for the job across the United States. Your recruiter can share more about the specific compensation package during your hiring process.Additionally, the total compensation package for this position may also include an annual performance bonus, stock, and/or other applicable incentive compensation plans.Our total reward package also includes: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. We also offer Short & Long-Term Disability, Basic Life Insurance, and a 401k saving plan with employer matchingAccess 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 dependentsGenerous employee stock purchase planPaid Time Off, Company paid holidays, paid volunteer hours and 12 weeks paid parental leaveAll compensation and benefits are subject to the requirements and restrictions set forth in the applicable plan documents and any written agreements between the parties.The US base salary range for this role is below.$90,700—$252,200 USDFive9 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.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.