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Palo Alto Networks

Builds cybersecurity tools for organizations

Principal Software Engineer

Backend EngineeringConfirmed live in the last 24 hours
Full-timeCalifornia, USA

About the Job

Requirements

  • A B.S. or higher in Computer Science or a related technical field, or equivalent practical experience, and 12+ years of professional software engineering experience with a proven track record in a Tech Lead or Principal Engineer role.
  • 8+ years of experience architecting and developing large-scale, complex applications, distributed microservices, and modern cloud-native systems, preferably on AWS, Azure, or GCP.
  • Hands-on proficiency with modern AI-assisted development tools such as Cursor, Claude Code, GitHub Copilot, or equivalent agentic IDEs for design, implementation, code review, and debugging, with sound judgment about when to use AI.
  • Deep expertise in enterprise backend development using .NET/C# or a comparable enterprise stack, along with web development and modern testing methodologies.
  • Expertise building and integrating web services using REST and SOAP, and deep knowledge of authentication and identity standards including SAML, WS-Fed, OpenID Connect, and OAuth.
  • Deep, hands-on experience designing, building, and operating microservices on containerized platforms, including Docker, Kubernetes, and managed offerings such as AWS EKS or equivalent GKE/AKS, plus service meshes, autoscaling, rolling deployments, observability, and production-grade reliability patterns.
  • Strong knowledge of databases and caching technologies such as PostgreSQL and Redis, data modeling, analytics, and system performance profiling and tracing.
  • Solid grounding in secure-by-default design, threat modeling, vulnerability management, Agile practices, and CI/CD automated deployments.
  • Strategic thinking, problem-solving, negotiation, and written and verbal communication skills to explain complex technical decisions to technical and executive audiences.
  • Knowledge of Directory Services such as Active Directory is a plus.

Responsibilities

  • Lead the Identity Platform’s technical strategy as an individual contributor by architecting resilient, distributed systems and owning major cross-team initiatives end to end.
  • Make initiative-level design and architecture decisions in fast-moving, ambiguous conditions, document trade-offs, and align cross-functional stakeholders around technical directions without direct reporting authority.
  • Set and enforce engineering standards through design and code reviews, upholding security, scalability, and performance criteria in alignment with company engineering practices.
  • Prototype, design, and build platform components and proof of concepts; write clean, secure, performance-optimized code using test-driven development, automation, and CI/CD practices.
  • Use AI and machine learning to automate incident detection, root cause analysis, and remediation to reduce toil and accelerate mean time to resolution.
  • Partner with Product, Infrastructure, and Support teams to translate customer and business needs into scalable system designs and delivery plans.
  • Mentor senior and junior engineers through code reviews and design guidance, and partner with engineering managers on hiring to attract, evaluate, and onboard talent.
  • Promote AI-augmented engineering across the team using modern AI tools, reusable context assets, and efficient workflows; review AI-generated code for correctness, security gaps, and API accuracy while maintaining data privacy, secret security, and risk mitigation standards.

About the Company

Palo Alto Networks

Builds cybersecurity tools for organizations

Palo Alto Networks builds cybersecurity hardware and software for businesses and public institutions, protecting their networks, cloud workloads and digital identities. Its portfolio combines network firewalls with tools that detect attacks, investigate security alerts and manage access to sensitive systems. Security teams use these products across offices, data centers and cloud environments, with shared data and automated workflows connecting the company's platforms. It earns revenue from appliance sales and software licenses, plus subscriptions and support contracts that keep protections and services active over time. Palo Alto Networks began operations in 2005 and is headquartered in Santa Clara, California.

Company size
10,001+
Company stage
IPO
Headquarters
Santa Clara, CA
Founded
2005

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