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Palo Alto Networks Logo Palo Alto Networks · IT - Software Development

Principal Engineer Software

India, Bengaluru · Job Posted March 22, 2026
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Job Description

At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re ready to do the most meaningful work of your career alongside people who are just as passionate as you are, you’re in the right place.

Job Responsibility

  • Design, develop, and maintain NextGen Network Security Components and Protocols for state-of-the-art firewalls deployed across Enterprise, Data Center, Cloud, and Service Provider environments
  • Lead the development of L2-L4 network security features, including stateful TCP/UDP inspection, across both hardware and virtual platforms
  • Develop scalable flow architecture for packet processing pipelines using DPDK for multi-core platforms and interface with ASIC functions
  • Architect and develop scalable software solutions for a distributed session architecture spanning across a cluster of firewalls
  • Collaborate with cross-functional teams including Product Management, QA, and Support to define feature requirements and ensure alignment on project goals
  • Provide timely root cause analysis and resolutions for critical customer escalations, demonstrating accountability for product stability
  • Act as a product visionary, contributing ideas for competitive advantage, making effective decisions, and independently driving tasks to completion

Requirements

  • BS/MS degree in Computer Science/Engineering or equivalent experience
  • 10+ years of strong experience in C Programming and large-scale software development on Unix/Linux
  • Expert in common network protocols such as TCP/IP, IPv4, IPv6, and multicast
  • Expert in data plane technologies like DPDK-based packet processing, performance tuning, and packet latency/loss analysis
  • Strong experience in packet processing, parsing, networking (L2-L4) protocols, and Layer-2/Layer-3/Layer-4 packet flow architecture

Nice to have

  • Experience as a technical lead in networking domains
  • Experience using Broadcom/Marvell chips for switching, QoS, and interface management
  • In-depth understanding of common software vulnerabilities and mitigations
  • Strong experience in C++/JAVA programming and XML/JSON understanding is desirable
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