Sr. Staff Software Development Engineer - Python + Networking

Overview

Senior Software Development Engineer role on the team that built Zscaler's cloud security platform, focused on high-performance network system architecture and security features.

What you'll do

• Design, develop, and optimize high-performance network system architecture and security features to support mission-critical applications
• Partner with Engineering Architects, Product Managers, Solution Architects, and customers to understand complex use cases and review PRDs
• Author design and functional specifications while driving unit testing and automation to ensure high product quality
• Collaborate across cross-functional teams to resolve system-level issues, optimize data path performance, and drive feature innovation
• Apply advanced software design principles and troubleshooting expertise to coach junior team members and maintain compliance with federal security certifications

What you'll need

• Demonstrated curiosity and active exploration of AI tools, with a proven history of integrating new technologies to enhance daily workflows and augment problem-solving
• Bachelor's or Master's degree in Computer Science or a related field with 9+ years of experience in system engineering for high-performance networking
• Expertise in Linux kernel-based networking (L2/L3), stateful firewalls, NAT, network drivers, routing protocols (BGP, OSPF, PIM), and protocols like VLANs, DHCP, DNS, SSL, DTLS, QUIC, IPsec, GRE, and WireGuard
• Proficiency in Go and Python programming languages with strong problem-solving skills for debugging complex data path issues
• Strong communication and collaboration skills to design scalable systems effectively in a high-accountability environment

Nice to have

• Experience integrating AI/ML frameworks or intelligent data path analysis models to optimize kernel-level networking performance and automate predictive threat detection
• Experience with WireGuard, tunneling protocols (GRE, L2VPN), HA protocols (VRRP), alongside certifications like FIPS or FedRAMP and prior experience with TLS, DTLS, and QUIC
• Familiarity with cloud computing platforms (AWS or Azure), containerization technologies (Docker, Kubernetes), and advanced virtualization or security solutions

Details

• Location: Bangalore, India
• Work mode: Hybrid
• Reports to the Senior Manager, Software Engineering in the Engineering department