Senior Site Reliability Engineer – Production Excellence

Poshmark

Senior Site Reliability Engineer serving as guardian of production excellence for fashion marketplace Poshmark. Leading automation efforts and ensuring system uptime across complex environments.

Posted 4/12/2026full-timeRedwood City • California • 🇺🇸 United StatesSenior💰 $155,900 - $261,100 per yearWebsite

Tech Stack

Tools & technologies

AnsibleAWSAzureDockerGoogle Cloud PlatformGraphiteJenkinsKubernetesTerraformUnix

About the role

Key responsibilities & impact

Serve as the primary point of accountability for the health, performance, and capacity of mission-critical, internet-facing services.
Partner with development teams beginning at the design phase to ensure all platforms are built with "operability" and "recoverability" at their core.
Improve and exchange tools that automate the deployment and monitoring of custom applications in large-scale UNIX environments.
Thrive in a fast-paced environment where you bridge the gap between "moving fast" and "staying up"
Participate in a structured 12x7 on-call rotation designed to maintain 24/7 support for production environments.

Requirements

What you’ll need

5–8+ years in a Systems Engineering or Site Reliability role, specifically within a startup or fast-growing environment.
Proven track record in a UNIX-based, large-scale web operations role.
Extensive experience providing 24/7 support for high-traffic production environments.
Expert-level experience with AWS, GCP, or Azure.
CI/CD & Config: Jenkins, Ansible, and Terraform.
Hands-on experience with Datadog, New Relic, Graphite, or Nagios.
Deep knowledge of Kubernetes, Docker.
Strong scripting/coding skills used for infrastructure-as-code and automation.

Benefits

Comp & perks

1) Poshmark is currently unable to provide visa sponsorship for this position. 2) This is a hybrid role based out of Redwood City, CA.

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

UNIXAWSGCPAzureCI/CDJenkinsAnsibleTerraformKubernetesDocker

Soft Skills

accountabilitycollaborationadaptabilityproblem-solvingcommunication