Staff Site Reliability Engineer

Role Overview

Zscaler is a pioneer and global leader in zero trust security. The world’s largest businesses, critical infrastructure organizations, and government agencies rely on Zscaler to secure users, branches, applications, data & devices, and to accelerate digital transformation initiatives. Distributed across more than 160 data centers globally, the Zscaler Zero Trust Exchange platform combined with advanced AI combats billions of cyber threats and policy violations every day and unlocks productivity gains for modern enterprises by reducing costs and complexity. Here, impact in your role matters more than title and trust is built on results. We believe in transparency and value constructive, honest debate—we’re focused on getting to the best ideas, faster. We build high-performing teams that can make an impact quickly and with high quality. To do this, we are building a culture of execution centered on customer obsession, collaboration, ownership and accountability. We champion an “AI Forward, People First” philosophy to help us accelerate and innovate, empowering our people to embrace their potential. If you’re driven by purpose, thrive on solving complex challenges and want to make a positive difference on a global scale, we invite you to bring your talents to Zscaler to help shape the future of cybersecurity.

What You'll Do

Create and maintain highly scalable solutions based on KVM LINUX, Kubernetes, and Public Cloud Providers
Analyze and troubleshoot systems performance and issues across the OS and Applications
Maintain platform security and observability using nftables and robust monitoring tools
Manage and deploy systems and software in diverse environments, including Kubernetes and OpenStack
Develop and maintain automation tools using Python, Golang, and BASH

Who You Are

You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. You adapt to what’s needed, navigating seamlessly between high-level strategy and hands-on execution. You are a problem-solver. You seek out challenges because you are energized by finding solutions, knowing that solving the hard problems delivers the biggest impact. You operate with urgency. You understand that in a high-growth environment, speed and quality are not mutually exclusive. You have a relentless focus on execution and a bias for action, delivering high-impact results quickly to win for the customer and the team. You are driven by innovation. You have a deep curiosity for how things work and are energized by solving complex technical challenges. You believe in the power of technology to accelerate transformation and are always looking for a better, more secure, and scalable way. You lead with integrity. You do the right thing, even when it’s hard. You hold yourself and others to a high standard of accountability and build trust by matching your words with consistent, transparent action.

What We’re Looking For

Strong understanding of web security, protocols, and SSH
Technical aptitude in security frameworks including PGP, SSH, PKI, and Multi-factor authentication
Deep knowledge of network fundamentals including DHCP, ARP, Subnetting, Routing, NAT, Firewalls, IPv4, and IPv6
Hands-on experience with Container Orchestration services such as Docker and Kubernetes, and automation tools like Ansible
5+ years of experience in a Linux/UNIX System Administration or SysAdmin role

What Will Make You Stand Out

Extensive experience with OpenStack and CEPH
Deep Linux expertise gained through a background in dedicated SysAdmin roles
Proficiency with Secrets Management Systems such as Hashicorp Vault

Benefits

Various health plans
Time off plans for vacation and sick time
Parental leave options
Retirement options
Education reimbursement
In-office perks, and more!