Site Reliability Engineer — Kubernetes, AWS, Automation

PostHog, Inc.; United States; Remote; USD 150,000 - 210,000; Full time

Job summary

PostHog, Inc. is seeking an experienced SRE to own production systems at scale. You will operate multi-account AWS and Kubernetes environments, automate infrastructure with Terraform/Terragrunt, and implement robust on-call practices.

The role emphasizes automation, reliability, and cost-aware engineering across a natively remote US-focused team. You will shape platform tooling, support stateful services, and drive incidents toward faster resolution with resilient, scalable patterns.

Qualifications

• Deep hands-on experience with Kubernetes in production.
• Strong experience operating production infrastructure on AWS.
• Experience automating infrastructure with Terraform or Terragrunt.
• Solid understanding of Linux systems.
• Experience supporting stateful systems (databases, queues, storage).
• Ability to debug and reason about performance and reliability in production.
• You're comfortable owning systems end-to-end, including on-call responsibilities.

Responsibilities

• Own end-to-end platform responsibilities including provisioning, scaling, and recovery.
• Design safe automation for traffic-heavy workloads and build tooling for scale.
• Operate and optimize multi-region AWS infrastructure and Kubernetes environments.
• Maintain Terraform/Terragrunt IaC with automated plan-on-PR and safe shared patterns.
• Improve deployment tooling, backups, and incident response processes.
• Reduce operational load by eliminating repeat pain points through code and automation.
• Collaborate on cost optimization and on-call incident response.

Skills

Kubernetes

AWS

Terraform

Terragrunt

Linux

On-call

Monitoring

Tools

Karpenter

Cilium

ArgoCD

GitHub Actions

Job description

PostHog, Inc. is seeking an experienced SRE to own production systems at scale. You will operate multi-account AWS and Kubernetes environments, automate infrastructure with Terraform/Terragrunt, and implement robust on-call practices.

The role emphasizes automation, reliability, and cost-aware engineering across a natively remote US-focused team. You will shape platform tooling, support stateful services, and drive incidents toward faster resolution with resilient, scalable patterns.