Principal Software Engineer (C / Networking / Dataplane)

Zscaler is looking for a Principal Software Engineer (C / Networking / Dataplane) to join its Engineering Team. This is a Hybrid role, reporting to the Senior Director, Software Development Engineering.

The Principal Software Engineer will design and implement high-performance data path features for load balancing and L7 protocols, directly enhancing the scalability and security of global networking infrastructure. They will leverage deep C programming expertise and autonomous ownership to drive complex architectural projects from initial concept to large-scale deployment.

Responsibilities:

• Design and implement Datapath features related to Load Balancer, Firewall rules, and L7 Protocol implementations
• Apply deep knowledge of C programming, data structures, and algorithms to build high-performance systems
• Independently drive moderately complex projects from conception to deployment with full ownership
• Utilize expert knowledge of networking protocols and services including DNS, HTTP, TCP/IP, and SSL/TLS
• Leverage Unix or Linux operating systems knowledge to optimize networking and security applications

Requirements:

• 12+ years of experience building large-scale commercial networking and security applications with proficiency in programming languages C or C++
• Strong foundational knowledge in data structures and algorithms
• Working experience in Linux, Unix, or similar operating systems
• BS or MS degree in CS/CE or equivalent experience

Preferred Qualifications:

• Exposure to AI-assisted software development tools and workflows
• Advanced knowledge of networking protocols and services, specifically DNS, HTTP, TCP/IP, and SSL/TLS

Benefits:

• Various health plans
• Time off plans for vacation and sick time
• Parental leave options
• Retirement options
• Education reimbursement
• In-office perks, and more!

Salary Range: $185,500-$265,000 USD