Principal Software Engineer (C / Networking / Dataplane)

We are looking for a Principal Software Engineer (C / Networking / Dataplane) to join our Engineering Team. This is a Hybrid (San Jose, CA 3 days a week in office) role, reporting to the Senior Director, Software Development Engineering. The Principal Software Engineer (C / Networking / Dataplane) 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. By leveraging deep C programming expertise and autonomous ownership, they will drive complex architectural projects from initial concept to large-scale deployment.

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

You act like an owner. Your passion for the mission fuels your bias for action. You operate with integrity because you genuinely care about the outcome. You adapt to what’s needed, navigating seamlessly between high-level strategy and hands-on execution.

You are a high-trust collaborator. You are ambitious for the team, not just yourself. You embrace our challenge culture by giving and receiving ongoing feedback—knowing that candor delivered with clarity and respect is the truest form of teamwork and the fastest way to earn trust.