Staff Site Reliability Engineer

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.

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. Role We are looking for a Staff Site Reliability Engineer to join our Cloud Infrastructure & Operations team.

This is a remote role based in the Netherlands, reporting to the Senior Director, Software Engineering. As a Staff SRE, you will leverage your expertise in Linux/UNIX System Administration to build scalable infrastructure and manage platforms like Kubernetes using automation and high security standards. You will troubleshoot complex Linux networking and security issues, manage firewall technologies, and ensure secure access across our global 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 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 (Success Profile) 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 (Minimum Qualifications) 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 (Preferred Qualifications) 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 #LI-MM8 #LI-REMOTEAt Zscaler, we are committed to building a team that reflects the communities we serve and the customers we work with.

We foster an inclusive environment that values all backgrounds and perspectives, emphasizing collaboration and belonging. Join us in our mission to make doing business seamless and secure. Our Benefits program is one of the most important ways we support our employees. Zscaler proudly offers comprehensive and inclusive benefits to meet the diverse needs of our employees and their families throughout their life stages, including: Various health plans Time off plans for vacation and sick time Parental leave options Retirement options Education reimbursement In-office perks, and more!

Learn more about Zscaler’s Future of Work strategy, hybrid working model, and benefits here. By applying for this role, you adhere to applicable laws, regulations, and Zscaler policies, including those related to security and privacy standards and guidelines. Zscaler is committed to providing equal employment opportunities to all individuals.

We strive to create a workplace where employees are treated with respect and have the chance to succeed. All qualified applicants will be considered for employment without regard to race, color, religion, sex (including pregnancy or related medical conditions), age, national origin, sexual orientation, gender identity or expression, genetic information, disability status, protected veteran status, or any other characteristic protected by federal, state, or local laws.

See more information by clicking on the Know Your Rights: Workplace Discrimination is Illegal link. Pay Transparency Zscaler complies with all applicable federal, state, and local pay transparency rules. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.

ZS is the place where ambitions are welcomed and where passion changes lives. As a management consulting and technology firm focused on transforming healthcare and beyond, we invite you to grow with our global team of bright minds. At ZS, we believe that making an impact demands a different approach; and that's why here your ideas elevate actions, and here you'll have the freedom to define your own path and pursue cutting-edge work.

Join us and work side-by-side with like-minded people who rise...