Staff Network & Infrastructure Engineer

Zscaler•San Jose, CA

2d•Hybrid

About The Position

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. We are looking for a Staff Network and Infrastructure Engineer to join our Cloud Ops Team. This role is hybrid onsite three days a week in San Jose, reporting to the Sr. Manager, Network Engineering. As a member of our global infrastructure engineering operations team, you will take on a unique role involving a mix of network engineering, network/customer troubleshooting, infrastructure, and project management responsibilities.

Requirements

5+ years of experience in remote data center network operations, specializing in high-speed fiber networks (10G/100G/400G), device configuration, and physical layer troubleshooting
Deep knowledge in BGP routing and L2/L3 troubleshooting for large-scale IPv4/IPv6 Enterprise or Telecom networks, including complex Internet path problem debugging
Strong organizational skills with a proven ability to utilize problem ticketing and inventory systems to maintain streamlined data center workflows
Demonstrated success thriving in fast-paced environments by effectively managing tight timelines, shifting priorities, and high-pressure deliverables
Bachelor’s Degree in Engineering (or equivalent experience) complemented by advanced networking certifications such as CCNP or JNCIP

Nice To Haves

Expert in IP packet analysis using Wireshark and hands-on troubleshooting of core protocols, including DNS, HTTPS, GRE, and IPsec
Experienced in Linux/Unix administration and network equipment management, with the ability to utilize Unix shell scripts for task automation
Skilled in managing diverse network hardware and operational tasks, supported by a technical foundation aligned with CCNP and JNCIP certification standards

Responsibilities

Participate in 24/7 follow-the-sun model supporting the deployment of new data center hardware, networks, transit, and BGP peering
Provide expert L2/L3 network and Internet path troubleshooting
Plan and oversee datacenter cabinet layouts, power density, and server cluster deployments to ensure efficient, scalable, and reliable operations
Manage IPv4/IPv6 subnetting and IP address allocation while ensuring the seamless integration of hardware and network resources
Develop and maintain capacity deployment strategies to optimize resource utilization and support long-term infrastructure growth