Senior Production SRE: Scale Reliability Engineer (Hybrid)

Zscaler; New York (NY); Hybrid; USD 119,000 - 170,000; Full time

Benefits offered by this job

Health plans

Time off plans for vacation and sick

Parental leave options

Retirement options

Education reimbursement

In-office perks, and more!

Job summary

Zscaler seeks a Staff Site Reliability Engineer (Production Engineer) to join our Zero Trust Exchange team in a hybrid role. You will own reliability of large-scale bare-metal and cloud infrastructure, write production-grade code, and drive proactive incident management across global fleets.

You should excel at OS/network debugging, automation with Ansible/Python/Go, and shaping SRE practices with telemetry, SLOs, and CI/CD readiness to keep services stable at scale.

Qualifications

• US Citizenship is required.
• Foundational understanding of AI/ML technologies and experience leveraging AI-driven solutions to optimize outcomes.
• 5+ 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) and hands-on experience writing Ansible playbooks/tasks for infrastructure automation.
• Deep knowledge of Linux OS internals and kernel troubleshooting.
• Comprehensive understanding of networking protocols and packet-level analysis, including DNS, TLS handshakes, TCP/IP, and tcpdump.

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 (strace, lsof, tcpdump, iostat, vmstat, gdb).
• Automate infrastructure lifecycle management, service provisioning, configuration workflows, and release deployments using Ansible, Python, and Go; reduce recurring manual work through automation.
• Own end-to-end telemetry (metrics, logs, traces) using Prometheus and OpenTelemetry; define and enforce SLOs/error budgets to reduce alert noise.
• Perform architectural reviews, OS/kernel upgrades, capacity and performance tuning, CI/CD validation before production rollouts; embed operability standards into service design.

Skills

Python

Go

Bash

Ansible

Linux

Networking

tcpdump

Tools

Kubernetes

Prometheus

OpenTelemetry

Ansible

Python

Go

Job description

Zscaler seeks a Staff Site Reliability Engineer (Production Engineer) to join our Zero Trust Exchange team in a hybrid role. You will own reliability of large-scale bare-metal and cloud infrastructure, write production-grade code, and drive proactive incident management across global fleets.

You should excel at OS/network debugging, automation with Ansible/Python/Go, and shaping SRE practices with telemetry, SLOs, and CI/CD readiness to keep services stable at scale.