Principal Site Reliability Engineer (DNS Security)

Palo Alto Networks

1d•Onsite

About The Position

Our Mission 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. Who We Are In order to be the cybersecurity partner of choice, we must trailblaze the path and shape the future of our industry. This is something our employees work at each day and is defined by our values: Disruption, Collaboration, Execution, Integrity, and Inclusion. We weave AI into the fabric of everything we do and use it to augment the impact every individual can have. If you are passionate about solving real-world problems and ideating beside the best and the brightest, we invite you to join us! We believe collaboration thrives in person. That’s why most of our teams work from the office full time, with flexibility when it’s needed. This model supports real-time problem-solving, stronger relationships, and the kind of precision that drives great outcomes. Job Summary Your Career We are seeking development-heavy Site Reliability Engineers (SREs) who are passionate about bringing new ideas to all facets of DevOps and operational excellence within our Internet security infrastructure product portfolio. This key role requires strong technical expertise to design, build, maintain, and scale production services and server farms, with an emphasis on applying development skills to automate and optimize complex infrastructures for large-scale global product deployments across multiple cloud platforms. As an SRE, you will take end-to-end ownership of your focus areas, driven to solve problems at every level of the stack, and participate in all phases of the product lifecycle—from initial design and development through testing and deployment—while collaborating seamlessly with multi-functional teams, including developers, product managers, and QA, to achieve a common operational goal.

Requirements

Bachelor's or higher degree in Computer Science, Engineering, or related field or equivalent military experience required
6+ years of experience in DevOps, SRE, or related roles.
Cloud Experiences: GCP/AWS/OCI/Azure.
Container Docker, Kubernetes operational experiences.
Knowledge of TCP/IP, DNS, HTTP, GRPC
Proven experience in designing, implementing, and maintaining scalable and reliable infrastructure
Strong proficiency in automation scripting and infrastructure as code (IaC)
Excellent problem-solving skills and the ability to troubleshoot complex issues
Effective communication skills, both written and verbal
Experience working in collaborative, cross-functional environments
Python/Go/Rust programming
Availability for on-call support
Willingness to engage with customers directly and represent the technical aspects of the product

Responsibilities

Build Terraform to deploy infrastructures and services to multiple cloud platforms.
Build automation for provisioning and operating infrastructure at a massive scale using Python or Go code
Work with Dev/QA teams to build pipelines and automation for delivering and deploying applications to production
Build observation (logging, metrics, alerting) systems to make sure system works well.
Design and implement the infrastructure to ensure applications align with infrastructure requirements, focusing on scalability and reliability
Collaborate with PMs to deliver compliances (SOC2, Fedramp, IL5) and establish a vision for continuous improvement.
On-call Support and Incident Resolution
Participate in occasional on-call rotations to support the infrastructure
Investigate incidents, formulate hypotheses, and identify root causes to solve issues promptly
Write postmortem reviews and provide remediation recommendations