Senior Staff Infrastructure Engineer

Role Overview

At Zscaler, we are looking for an experienced Senior Staff Infrastructure Engineer to join our Infrastructure Architecture and Shared Services team. This role is onsite and based in our San Jose, CA office five days a week, reporting to the Senior Director of Cloud Operations (Cloud Platform and Architecture). You will lead the planning and execution phases for large-scale conversion projects while identifying critical improvements for cloud hyperscaler usability. By managing integration for scalability and expanding our virtualization infrastructure, you will implement the processes necessary to meet our complex organizational needs.

What You'll Do

• Lead the planning and execution phases for a large-scale conversion project
• Identify improvements for cloud hyperscaler usability to drive operational efficiency
• Manage and oversee cloud hyperscaler integration to ensure global scalability and reliability
• Support and expand the virtualization infrastructure by implementing new processes to meet organizational needs

Who You Are

You thrive in ambiguity. You're comfortable building the path as you walk it. You thrive in a dynamic environment, seeing ambiguity not as a hindrance, but as the raw material to build something meaningful. 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. True ownership involves leveraging dynamic range: the ability to navigate seamlessly between high-level strategy and hands-on execution. You are a problem-solver. You love running towards the challenges because you are laser-focused on finding the solution, knowing that solving the hard problems delivers the biggest impact. You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust. You are a learner. You have a true growth mindset and are obsessed with your own development, actively seeking feedback to become a better partner and a stronger teammate. You love what you do and you do it with purpose.

What We're Looking For

• 10+ years of experience in infrastructure engineering roles with a focus on designing, deploying, and maintaining physical and cloud infrastructure
• Deep expertise with at least one major cloud provider (AWS, GCP, or Azure) and experience managing Linux systems across bare metal, virtualized, and containerized deployments
• Proven ability to lead large-scale infrastructure migration or modernization projects and experience supporting large-scale, highly available distributed systems
• Strong proficiency with Infrastructure as Code (IaC) tools like Terraform or Ansible, along with virtualization and container orchestration platforms
• Excellent leadership and communication skills with the ability to navigate ambiguity and make high-impact technical decisions with minimal oversight

What Will Make You Stand Out

• Strong programming or scripting skills in Python, Go, or Bash
• Experience with cloud cost management tools and FinOps practices
• Background in zero-downtime deployments, incident management, and SRE practices

About Zscaler

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.