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Senior Software Engineer - L7 Security

Palo Alto Networks

Salary not specified
Sep 19, 2025
Santa Clara, CA, USA
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In the Layer-7 Security Software team, we are responsible for at least one, often two to three headline features in every PANOS release. Our code reaches many product lines in the company, and is the critical part of delivering the highest revenue licenses the company offers. Our core Application Identification and Content Inspection Engine runs on Hardware, Virtualized, Container and Cloud-delivered firewalls. Any features that require the inspection or extraction of layer-7 network payload depends on our engine. We are also developing the latest Cloud-delivered Layer-7 security infrastructure. We design and develop key innovative security features such as the industry first Machine Learning powered NGFW, Credential Phishing prevention, URL-filtering, Cloud-delivered Data leak protection (DLP), and many more exciting features.

Requirements

  • Proficient in C programming under Linux development environment
  • Experience with multi-threaded programming and large-scale, distributed, and/or high-performance software design and architect
  • Experience with HTTP and web server backend development
  • Experience with networking development, eg. TCP/UDP, Socket programming
  • Experience with Redis, SQL or NoSQL database
  • Experience with Go programming

Responsibilities

  • Innovate, design, develop and improve the Next-Generation Firewall in terms of functionality and performance, working on GlobalProtect
  • Own and be responsible for critical components in the Next-Generation Firewall system
  • Deliver features and improvements in critical components in high quality and performance
  • As an expert on networking and security, work closely with team members and cross-team to design and architect innovative solutions

Other

  • B.S. degree in Computer Science, similar technical discipline or equivalent practical experience, Graduate degree (MS or Ph.D.) in Computer Science or similar technical discipline is preferred or equivalent military experience required
  • Verbal and written communication skills to work with multi-functional groups
  • Teammate who brings a can-do attitude to a dynamic working environment and is comfortable learning new technologies and platforms