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Zscaler

Sr. Staff Software Engineer (C/C++, Networking/VPN)

Zscaler, San Jose, California, United States, 95199

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Sr. Staff Software Engineer (C/C++, Networking/VPN)

San Jose, California, USA Overview

Join Zscaler, a global leader in cloud security. With over 65 million users worldwide, Zscaler’s Zero Trust Exchange platform protects enterprise customers from cyberattacks and data loss. Zscaler is an inclusive, fast‑paced culture that values collaboration, innovation, and impact. Responsibilities

Write high‑performance networking code for desktop, mobile, and embedded platforms using C/C++ and native APIs. Improve code quality, build solid, testable modules, and document design decisions. Design and implement major development projects, collaborating closely with product managers and cross‑functional teams. Serve as the domain expert for the Endpoint Client platform, resolving customer deployment issues and providing technical guidance. Minimum Qualifications

8+ years of experience with C/C++ and kernel‑mode programming, deep knowledge of network protocols (TCP/IP, UDP, DNS, QUIC, HTTP/3, proxying, etc.). Excellent programming skills: write high‑quality, low‑complexity, well‑documented code and design for testability using appropriate abstractions and dependency injection. Strong experience developing multithreaded, asynchronous systems and debugging complex network‑related issues. Solid understanding of VPN technologies and security protocols/standards, with clear grasp of trade‑offs among privacy, security, and anonymity. Empathetic, proactive, and constructive communicator, both verbally and in writing. Preferred Qualifications

Experience coding in Rust. Experience working in large code bases supporting multiple client platforms. Benefits

Competitive base salary range: $154,000 – $220,000 USD. Time off plans for vacation and sick time. Parental leave options. Retirement options. In‑office perks and more. EEO Statement

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.

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