Senior SRE: Scalable Kubernetes Platform & IaC Architect

Circle; San Francisco (CA); On-site; USD 123,000 - 205,000; Full time

Job summary

Circle is seeking a Senior Site Reliability Engineer to design, build, and operate the scalable platform infrastructure behind critical digital assets, AI, and app workloads. You will write and maintain services, automate repeatable workflows, and advance Kubernetes-based platforms across hybrid and public-cloud environments.

You will collaborate with platform, product, and application teams to translate workload requirements into resilient designs, taking ownership of production outcomes and

Qualifications

• 5+ years of experience in Site Reliability Engineering, DevOps, Infrastructure Engineering, or a closely related software engineering role supporting production systems.
• Deep, hands-on Kubernetes expertise: designing, operating, securing, and troubleshooting production clusters and containerized workloads at scale.
• Strong Terraform experience, including authoring reusable modules, managing state and environments, and delivering infrastructure changes through reviewable, automated workflows.

Responsibilities

• Design, build, and operate Kubernetes platforms that provide secure, highly available, and scalable foundations for production services across hybrid and public-cloud environments.
• Build infrastructure as code with Terraform, creating reusable modules, safe delivery workflows, and well-governed infrastructure changes.
• Develop backend services, internal tools, and operational automation in Go, Python, or JavaScript/TypeScript to eliminate manual work and improve the developer experience.
• Partner with engineering and product teams to understand workload requirements and design pragmatic solutions for reliability, performance, capacity, security, and cost.
• Improve the production lifecycle through reliable CI/CD, deployment automation, progressive delivery, and clear operational ownership.
• Define and evolve observability practices across metrics, logs, traces, alerting, and dashboards so teams can detect issues early and troubleshoot effectively.
• Own production reliability by participating in on-call, incident response, root-cause analysis, and durable corrective actions.
• Establish and maintain reliability targets through SLIs, SLOs, error budgets, capacity planning, disaster-recovery testing, and resilience improvements.
• Embed security and compliance into platform operations, partnering with Security to protect infrastructure, workloads, and data while meeting regulatory requirements.
• Apply AI-assisted and data-driven operational techniques to improve signal detection and automation opportunities.
• Raise the bar through code reviews, documentation, knowledge sharing, and mentorship.
• Mentor and support team growth, fostering collaboration and scalability.

Skills

Ownership

Strong communication

Problem solving

Tools

Kubernetes

Terraform

Go

Python

JavaScript/TypeScript

CI/CD

GitOps

Cloud platforms

Observability

Job description

Circle is seeking a Senior Site Reliability Engineer to design, build, and operate the scalable platform infrastructure behind critical digital assets, AI, and app workloads. You will write and maintain services, automate repeatable workflows, and advance Kubernetes-based platforms across hybrid and public-cloud environments.

You will collaborate with platform, product, and application teams to translate workload requirements into resilient designs, taking ownership of production outcomes and