Sr. Staff Software Engineer (C/C++ - Tunneling)

Zscaler•San Jose, CA

5h•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. Role We are looking for a Sr. Staff SWE to join our Zero Trust Exchange department. This is a Hybrid role based onsite in San Jose three days a week, reporting to the Sr. Manager, Software Development Engineering. As a key member of the engineering team, you will implement new ZCC tunnel features and modularize existing code to drive greater stability and performance across our platform.

Requirements

Advanced proficiency in C/C++ with experience building high-performance systems
Strong foundational knowledge of networking protocols and infrastructure
Proven ability to design and write secure, scalable code in a professional environment

Nice To Haves

Professional experience developing with the Rust programming language
Direct experience working within the VPN application domain or similar network security technologies

Responsibilities

Implement high-impact ZCC tunnel features that enhance connectivity and security for our global user base
Lead the modularization of existing code into libraries to improve system maintainability and architectural stability
Integrate memory-safe Rust language components where applicable to advance our commitment to robust and secure engineering