Senior Cloud Infrastructure 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. We celebrate diversity and foster an inclusive environment, empowering our employees to be their authentic selves.

About the role

We are seeking a highly experienced Senior Cloud Infrastructure Engineer to design, implement, and support Software Defined Storage (SDS) and Kubernetes platforms in a private cloud environment. This role focuses on scalability, resilience, automation, and performance using Infrastructure-as-Code and GitOps practices. You will collaborate with platform and SRE teams to maintain secure, performant, and multi-tenant-isolated services that serve high-throughput, mission-critical applications.

Responsibilities

• Design, implement, and operate large-scale Software Defined Storage architectures across private and public cloud regions
• Deploy and support enterprise storage platforms (Pure Storage, HPE, NetApp) and SDS solutions (Ceph, Longhorn)
• Build and operate multi-tenant Kubernetes clusters on bare metal using SDS-backed storage
• Develop Infrastructure-as-Code using Ansible, Terraform or Pulumi, with Python/Bash automation
• Implement CI/CD pipelines for infrastructure updates, patching, upgrades, testing, and rollback
• Build observability, alerting, and auto-remediation using GitOps and tools such as Prometheus, Loki, and Grafana
• Architect and maintain high availability, disaster recovery, and scale-out infrastructure
• Perform deep troubleshooting across storage, Kubernetes, hypervisors, networking, and Linux systems
• Participate in on-call rotations, incident response, and root cause analysis
• Collaborate globally on change management, documentation, and operational best practices

Requirements

• 6+ years of experience managing enterprise storage and Kubernetes platforms on Linux
• Strong hands-on experience with SDS solutions (Ceph, Longhorn) and storage migrations from legacy systems
• Experience with block, file, and object storage, including Fibre Channel and IP-based protocols
• Expert knowledge of Kubernetes and Linux systems (Ubuntu, RHEL/CentOS)
• Proficiency with Infrastructure-as-Code (Ansible, Terraform, or Pulumi)
• Strong scripting skills in Python, Bash, or Go
• Deep experience with enterprise DNS (Infoblox DDI, BIND, cloud DNS platforms)
• Experience operating 24x7 mission-critical production environments
• Hands-on experience with hypervisors (vSphere and/or KVM)
• Strong written and verbal communication skills
• Proficiency with Git, CI/CD pipelines, and automated testing frameworks
• Ability to write technical documentation and contribute to community wikis or knowledge bases
• Bachelor’s degree in computer science or equivalent professional experience

Preferred Qualifications

• Good understanding of overall Enterprise Common Infrastructure service implementations with a focus on SDS & Kubernetes
• Understanding of security best practices for system patching and security compliance (e.g., CIS, NIST)
• Background in telco, edge cloud, or large enterprise infrastructure environments
• Bachelor’s degree in computer science, IT, Engineering, or a related field preferred; equivalent experience and relevant industry certifications will also be considered

Skills and Attributes

• Analytical Thinking & Problem Solving: Demonstrated ability to translate complex, cross-domain requirements into scalable and resilient cloud infrastructure and automation solutions.
• Collaboration & Teamwork: Strong interpersonal and communication skills with a proven track record of effective collaboration across multidisciplinary teams, including developers, operations, security, and product stakeholders.
• Mentorship & 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 practices.

Schedule

This role is fully remote for candidates who reside outside the 30-mile radius of one of our offices. For candidates within a 30-mile radius, this role is hybrid and requires 3 days a week (Tuesday, Wednesday, Thursday) in the office.

Pay

The US base salary range for this role is $83,800—$200,600 USD. Actual compensation packages are based on several factors unique to each candidate, including skill set, depth of experience, certifications, and specific work location. The range displayed reflects the minimum and maximum target for new hire salaries for this job across the United States. Additionally, the total compensation package may include an annual performance bonus, stock, and/or other applicable incentive compensation plans.

Benefits

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