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Principal Engineer Software - Cortex Cloud

Palo Alto Networks

$147,000 - $237,500
Nov 20, 2025
Santa Clara, CA, US
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Palo Alto Networks' Cortex Cloud is looking for a Principal Backend Engineer to design and scale the core backend infrastructure for the Cortex Cloud Platform, impacting the security posture of thousands of customers across AWS, Azure, and GCP.

Requirements

  • 7+ years of progressive software engineering experience, with a heavy focus on developing cloud-native applications at scale.
  • Expert-level programming skills in at least one of: Python, Go, or Java.
  • Deep practical experience in distributed systems architecture and microservices.
  • Proven ability to build and deliver high-volume services, leveraging technologies like ElasticSearch, Pub/Sub, REST APIs, and Serverless computing.
  • A strong understanding of public cloud design considerations (security, networking, load balancing) and the limitations of building services at a global scale.
  • Experience acting as a hands-on tech lead or architect, making data-driven trade-off judgments.
  • You are a seasoned engineer who lives and breathes cloud-native development and is ready to step into a Principal role.

Responsibilities

  • Lead the design and implementation of large-scale, resilient distributed systems.
  • Serve as the project lead, aligning key stakeholders—from Product Management and UX to fellow engineering teams—to ensure seamless, timely delivery.
  • Act as a technical consultant and collaborator across team boundaries, proactively identifying and mitigating risks in design and execution.
  • Design, build, and optimize data models and high-performance queries using cutting-edge technologies like MySQL and BigQuery to handle massive data throughput.
  • Actively mentor and guide engineers across the department, raising the bar for engineering excellence and best practices.
  • Architect the foundational cloud security platform that protects the world's largest enterprises.
  • Forge the Future of Cloud Security

Other

  • As a technical leader, you'll be the driving force behind high-impact projects, moving them from initial concept to full-scale deployment.
  • Exceptional troubleshooting abilities and a "can-do" attitude when faced with complex, ambiguous problems.
  • The expected starting base salary for this Principal-level role is between $147,000/YR - $237,500/YR, depending on qualifications and location.
  • We are a team of problem-solvers who challenge the cybersecurity status quo.
  • We are committed to an inclusive and diverse workplace and believe we can't accomplish our mission without diverse teams innovating together.