Description
We are looking for a Sr. Site Reliability Engineer (Production Engineer) to join our team in the Zero Trust Exchange department. As a key member of the team, you will own the systems-level reliability and performance of Zscaler's high-throughput bare-metal and cloud infrastructure processing tens of billions of daily transactions across a global, multi-region fleet.
Responsibilities:
- Maintain high availability across large-scale bare-metal Linux/BSD fleets, Kubernetes clusters, and custom routing stacks in partnership with Engineering and Networking teams.
- Lead full-cycle incident response by conducting cross-stack troubleshooting using low-level OS and network tools.
- Automate infrastructure lifecycle management, service provisioning, configuration workflows, and release deployments using Ansible, Python, and Go.
- Own end-to-end telemetry using Prometheus and OpenTelemetry ecosystems; define and enforce SLOs/error budgets to reduce alert noise.
- Perform architectural reviews, OS/kernel upgrades, capacity and performance tuning, strict CI/CD validation prior to production rollouts.
Requirements:
- US Citizenship is required.
- 3+ years of experience in Site Reliability Engineering, Production Engineering, or Systems Engineering operating high-scale, low-latency production platforms.
- Proven ability to write and debug executable code live (Python, Go, or Bash).
- Deep knowledge of Linux OS internals and kernel troubleshooting.
- Comprehensive understanding of networking protocols and packet-level analysis.
Preferred Qualifications:
- Hands-on experience operating and managing FreeBSD / BSD operating systems in production.
- Proven expertise running, scaling, and troubleshooting Kubernetes clusters in high-traffic, low-latency environments.
- Deep experience with Prometheus / OpenTelemetry ecosystems, or leveraging AI/ML frameworks/AIOps tools for automated root-cause analysis.
Salary Range: $118,400-$148,000 USD
Benefits:
- Various health plans
- Time off plans for vacation and sick time
- Parental leave options
- Retirement options
- Education reimbursement
- In-office perks, and more!