Role 

We are looking for a Staff Site Reliability Engineer to join our Cloud Infrastructure & Operations team in our San Jose, CA HQ Office. This is a hybrid role reporting to the Chief Architect, REIS. You are an SRE with proven experience in Linux/UNIX System Administration and hands-on expertise in building infrastructure and managing platforms like Kubernetes using automation tools and high security standards. In this role, you will troubleshoot complex Linux networking and security issues, apply a strong understanding of firewall technologies, and manage access across various systems, platforms, and applications.

What you’ll do (Role Expectations)

• Create and maintain highly scalable solutions based on KVM Linux, Kubernetes, and Public Cloud Providers
• Analyze and troubleshoot systems performance and complex issues across operating systems and applications
• Maintain platform security and observability through nftables and comprehensive monitoring
• Manage and deploy systems and software in diverse environments, including Kubernetes and Openstack
• Write and maintain custom tools using Python, Golang, and BASH

Who You Are (Success Profile)

• You thrive in ambiguity and are comfortable building the path as you walk it, seeing a dynamic environment as the raw material to build something meaningful.
• You are a problem-solver who seeks out challenges because you are energized by finding solutions that deliver the biggest impact.
• You operate with urgency and maintain a relentless focus on execution, understanding that speed and quality are not mutually exclusive in a high-growth environment.
• You are driven by innovation and a deep curiosity for how things work, always looking for a better, more secure, and scalable way to accelerate transformation.
• You lead with integrity and hold yourself to a high standard of accountability, building trust by matching your words with consistent, transparent action.

What We’re Looking for (Minimum Qualifications)

• Strong understanding of web security, protocols, and SSH
• Technical security aptitude including PGP, SSH, PKI, and Multi-factor authentication
• Mastery of network fundamentals including DHCP, ARP, subnetting, routing, NAT, firewalls, and IPv4/IPv6
• Experience in container orchestration services including Docker and Kubernetes, alongside automation tools like Ansible
• 5+ years of experience in a Linux/UNIX System Administration or SysAdmin role

What Will Make You Stand Out (Preferred Qualifications)

• Strong Openstack and CEPH experience paired with advanced Kubernetes expertise
• Extensive professional history in dedicated Linux System Administration roles
• Direct experience with Secrets Management Systems such as Hashicorp Vault or similar technologies

#LI-Hybrid 

#LI-CM3

Role 

We are looking for a Sr. Staff Production Engineer to join our team. This role is available as a hybrid opportunity 3 days a week in San Jose, CA or as a remote position, reporting to Production Engineering in the Cloud Infrastructure & Operations department. Join Zscaler to be a force multiplier for the reliability of a global platform protecting over 15 million users. 

In this role, you will provide the technical vision and hands-on execution to drive an "automation-first" culture across the company. By maturing our observability and architectural standards, you will directly reduce our Mean Time to Mitigate (MTTM) and shape the scalability of our globally distributed, multi-cloud infrastructure.

What you’ll do (Role Expectations)

• Design and implement highly available, scalable infrastructure across AWS, Azure, GCP, and bare-metal environments
• Drive an "automation-first" culture by writing code (Python/Go) to eliminate manual toil and build self-healing systems
• Implement and maintain sophisticated observability (Prometheus, Grafana, OpenTelemetry), define SLIs/SLOs, and establish error budgets
• Act as a lead Incident Commander (TDO on-call), develop response playbooks, and conduct deep-dive post-incident analyses
• Partner with Engineering and partner teams to conduct operability reviews

Who You Are (Success Profile)

• You act like an owner with a bias for action and integrity.
• You are a pragmatic builder obsessed with creating, iterating, and shipping.
• You champion simplicity by distilling complex problems into clear, actionable plans.
• You are data-driven, valuing evidence over assumptions.
• You think at scale, building solutions and processes built to last a high-growth global organization.

What We’re Looking for (Minimum Qualifications)

• 8+ years of experience managing reliability, scalability, and availability for large-scale production services
• Deep expertise in programming (e.g., Python, Go, or C/C++)
• Strong background in networking protocols, Linux/FreeBSD systems, and distributed architecture
• Experience in high-stakes incident management and participation in a 24/7 on-call rotation
• Proficiency in leveraging ITIL frameworks and incident data to drive service maturity through systematic problem management and technical operability reviews

What Will Make You Stand Out (Preferred Qualifications)

• Extensive experience with public cloud (AWS, Azure, GCP) and Infrastructure-as-Code (Ansible, Terraform)
• Experience with chaos engineering and disaster recovery planning at scale
• Expertise in global routing (BGP) and traffic tunneling (GRE, IPSec) with a deep understanding of L7 proxy architectures (HAProxy), DNS at scale, and OS networking stack internals

#LI-Hybrid

#LI-CM3

Role 

We are looking for a Principal Site Reliability Engineer to join our Infrastructure services and architecture team. This role is hybrid 3 days a week onsite in San Jose, CA, or can be remote reporting to the Senior Manager, Cloud Operations. As a lead engineer, you will leverage deep expertise in IaC/CaC, Linux virtualization, and physical hardware management to drive our infrastructure forward. You will oversee networking services and general software engineering to ensure our systems remain scalable, resilient, and high-performing.

What you’ll do (Role Expectations)

• Mentor junior engineers and lead high-impact infrastructure projects
• Support business operations by responding to alerts and triaging systems to restore mission-critical capabilities
• Ensure the reliability and performance of all customer-facing services
• Design, document, and build technical solutions that align with evolving organizational needs
• Support Agile processes to maintain high velocity and a collaborative environment

Who You Are (Success Profile)

• You possess deep expertise in Kubernetes management and deployment, ensuring containerized environments are optimized and secure.
• You are a champion for Infrastructure/Configuration as Code, maintaining a strict IaC/CaC mindset in every solution you build.
• You operate with a security-first focus, embedding protection and compliance into the foundation of the infrastructure.
• You bring a "go-getter" attitude, proactively identifying problem areas and proposing innovative solutions.
• You are highly proficient in CI/CD pipelines and believe that automated testing is non-negotiable for stable releases.

What We’re Looking for (Minimum Qualifications)

• Expert-level proficiency with Kubernetes
• Deep professional experience with Terraform and Ansible
• Expert-level programming skills in Python or Go
• Hands-on experience with Enterprise Linux distributions such as Rocky, Red Hat, or Alma
• Proven experience using Git within a structured SDLC
• U.S. citizenship due to the nature of the customers assigned to this role

What Will Make You Stand Out (Preferred Qualifications)

• Deep knowledge of Linux Hypervisors, including OpenStack, Proxmox, libvirt, or QEMU
• Technical experience working with FreeBSD
• Familiarity with Identity Access Management tools like HashiCorp Vault, LDAP, or OIDC

#LI-SanJose #LI-Remote #LI-JG1