Principal Site Reliability Engineer

Expel

Principal SRE securing Expel’s cloud-native cybersecurity platform. Leading Kubernetes, infrastructure, incident response, and reliability initiatives across distributed systems.

Posted 8/14/2026full-timeRemote • 🇺🇸 United StatesLead💰 $167,300 - $242,600 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building and maintaining platform features with a focus on reliability, networking, and cloud infrastructure. Proficient in infrastructure-as-code practices and experienced in mentoring teams while ensuring effective incident response and support for platform users.

Highest-signal resume keywords

Kubernetes OperationsGCP or AWS ExperienceInfrastructure-as-Code PracticesPython or Golang DevelopmentMonitoring and Observability Infrastructure

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Infrastructure-as-CodePythonGolangJavaScriptKubernetesCloud InfrastructureSystems OperationsIncident ResponseRoot Cause AnalysisMonitoring and Observability

Soft Skills

MentoringCollaborationCustomer-Minded ApproachMotivationTeamwork

Industry Keywords

Distributed EnvironmentsService ReliabilityPlatform SupportBlame-Free RetrospectivesSupport Rotation

Tech Stack

Tools & technologies

AWSCloudGoGoogle Cloud PlatformJavaScriptKubernetesLinuxPython

About the role

Key responsibilities & impact

Lead project work building and maintaining platform features across product reliability, networking, and cloud infrastructure
Push infrastructure-as-code commits daily
Occasionally write and test application code in Python, Golang, and JavaScript
Mentor and motivate service owners on deploying, measuring, monitoring, and operating services at scale
Participate in a weekly support rotation, including on-call pager duties and working-hours support for platform users
Lead incident response, triage, and root cause analysis support
Collaborate with architects and product stakeholders on reliability initiatives
Pair-program with and mentor junior SREs
Work from a shared backlog, pair-program weekly, peer-review work, and participate in blame-free retrospectives

Requirements

What you’ll need

Significant experience operating Kubernetes in highly distributed environments
Experience running systems in GCP or AWS
Exposure to monitoring and observability infrastructure and standard methodologies
Understanding of infrastructure-as-code practices, tools, and patterns
Some software development experience in Linux environments, preferably Python and/or Golang
Six years of systems experience in operations or development
Customer-minded approach supporting platform users and building organizational trust
Collaborative disposition for working across teams

Benefits

Comp & perks

Bonus eligibility
Equity
Unlimited PTO
Work location flexibility
Up to 24 weeks of parental leave
Excellent health benefits
Reasonable accommodation for disabilities during hiring, work, and access to benefits