Staff Software Development Engineer - Data Path Team

Position Overview

• Location Type: Remote
• Job Type: Full-time
• Salary: Not specified

Zscaler is seeking an experienced Software Engineer to join their Cloud Browser Isolation/ Data Path Team. This role reports to the Senior Manager, Software Development Engineering and is based in Madrid, with a remote working arrangement. The engineer will be responsible for the end-to-end lifecycle of core components within the cloud security platform, focusing on delivering optimal browser streaming experiences for customers.

Responsibilities

• Own the definition, design, implementation, testing, delivery, monitoring, and reliability of multiple core components to ensure optimal browser streaming experiences for customers.
• Collaborate with stakeholders to analyze requirements and develop scalable, secure, and extensible technical solutions for cloud applications.
• Write high-quality, testable, maintainable, and secure code, while integrating appropriate tests into CI/CD pipelines for reliable deployments.
• Foster team growth through mentoring and knowledge sharing, maintaining a focus on continuous learning and improvement.
• Take full ownership of deployed services, including on-call responsibilities, to ensure reliability and minimize production incidents.

Requirements (Minimum Qualifications)

• 6+ years of professional experience in software engineering.
• At least 3 years dedicated to developing applications for Linux and cloud-based, high-traffic systems.
• Strong coding skills in C++.
• In-depth knowledge of RESTful APIs.
• Solid understanding of the HTTP protocol and request/response lifecycle.
• Familiarity with technologies such as gRPC or WebSockets.
• Strong grasp of system design principles and programming fundamentals.
• Experience with microservice-based and distributed architectures.

Preferred Qualifications

• Proficiency in computer graphics libraries (e.g., OpenGL, Vulkan), GPU driver development, Chromium rendering, browser engines, and modern web technologies such as WebAudio, WebGL, or WebAssembly.
• Expertise in media streaming technologies, low-level networking protocols (TCP, UDP), containerization tools (Docker, Kubernetes).
• Strong coding skills in Rust.
• Familiarity with automation tools for code quality, testing, and CI/CD pipelines.

About Zscaler

Zscaler is a global leader in cloud security, serving thousands of enterprise customers, including 40% of Fortune 500 companies. Founded in 2007, Zscaler operates the world's largest security cloud, accelerating digital transformation by making the cloud a safe and enjoyable place for enterprise users. The Zscaler Zero Trust Exchange™ platform protects customers from cyberattacks and data loss by securely connecting users, devices, and applications.

Zscaler has been recognized as a Best Workplace in Technology by Fortune and fosters an inclusive and supportive culture. The Engineering team has built a leading cloud security platform with over 100 patents, supporting more than 15 million users in 185 countries. Zscaler is committed to building a diverse team that reflects the communities and customers it serves.