Site Reliability Engineer

Confirmed live in the last 24 hours

Five9

Compensation

$71,800 - $190,000/year

United States (Remote)

Hybrid

Posted March 30, 2026

Job Description

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 Site Reliability Engineer (SRE) to join our team and help build and maintain highly reliable, scalable systems. This role combines software engineering and operations expertise to ensure our services meet ambitious reliability targets while enabling rapid development and deployment. This position requires approximately 50% software development and 50% operational work, focusing on automation, monitoring, and system reliability rather than manual operations. The team works collaboratively with our platform, application and database teams to provide a reliable and available service.

Key Responsibilities:

Observability & Monitoring
• Dashboards & Metrics: Design and implement comprehensive dashboards. These dashboards cover OS/platform level monitoring and application-level monitoring. These dashboards are broken into primary (RED) and secondary indicators (USE).
• Availability & Reliability: Establish and maintain SLIs (Service Level Indicators), SLOs (Service Level Objectives), and error budgets for the service.
• Performance Monitoring: Build alerting systems and performance monitoring to proactively identify and resolve issues before they impact users.
• Incident Response: Participate in on-call rotations and lead incident response efforts, including post-mortem analysis and remediation. Maintain the official on-call routing. Assign and track application level problems to the engineering team.
Infrastructure Automation & Deployment
• CI/CD Pipeline Management: Maintain continuous integration and deployment pipelines working with our cloud and on-premise deployment teams.
• Infrastructure as Code: Develop and maintain infrastructure using tools like Terraform, Ansible, or similar.
• Configuration Management: Automate system configuration and ensure consistency across environments. Provide recommendations for and implement best practices for configuration control.
Security & Compliance
• Security Automation: Ensure security scanning systems are in place and review escalated vulnerabilities.
• Access Control: Maintain proper authentication, authorization, and audit logging systems.
• Compliance Reporting: Ensure systems meet regulatory requirements and industry standards.
• Security Incident Response: Participate in security incident response and remediation efforts.
Cost Optimization
• Resource Management: Monitor and optimize cloud resource usage and costs looking for planned and unplanned resource changes.
• Capacity Planning: Analyze usage patterns and plan for future capacity needs.
• Cost Analysis: Provide recommendations for cost-effective architecture and resource allocation.
• Right-sizing: Implement automated scaling and resource optimization strategies.
Common Services & Platform Engineering:
• Shared Infrastructure: Build and maintain common services like notification systems, caching layers, and message queues or third-party software stacks.
• Database Operations: Manage database reliability, performance, and scaling (where not handled by dedicated DB teams).
• Service Mesh & Networking: Implement and maintain service discovery, load balancing, and network policies.
• Developer Tools: Create and maintain tools and platf