Note: The job is a remote job and is open to candidates in USA. Circle is a leading internet financial platform company building a global economy through digital assets and blockchain infrastructure. The Staff Site Reliability Engineer will design, build, and operate scalable blockchain infrastructure, focusing on reliability, performance, and automation across multiple cloud environments. The role involves collaborating with various teams to build AI-powered tooling, improve operational excellence, and ensure the rapid delivery of blockchain capabilities.
Responsibilities
- Operate and scale production blockchain infrastructure, managing full nodes across networks such as Arc, Ethereum, Solana, Base, and other supported protocols
- Design, build, and maintain highly available, secure Kubernetes platforms with a focus on automation, resilience, and self-healing workloads
- Build and improve CI/CD pipelines, deployment workflows, and Infrastructure as Code using Terraform, Pulumi, and cloud-native tooling
- Develop AI-powered infrastructure automation, including Kubernetes lifecycle management, IaC analysis, blockchain cost optimization, and MCP server integrations to improve engineering productivity
- Monitor, troubleshoot, and optimize distributed systems, participating in a follow-the-sun on-call rotation, incident response, and post-incident reviews to improve platform reliability
- Partner closely with protocol, product, and security teams to deliver reliable infrastructure that supports network launches, upgrades, and evolving business requirements
- Drive technical excellence by mentoring engineers, sharing SRE best practices, and contributing to architecture and reliability improvements across the platform
Skills
- 4+ years of experience in Site Reliability Engineering, DevOps, or Infrastructure Engineering, ideally supporting cloud-native platforms
- Experience operating and troubleshooting blockchain nodes and other distributed systems in production environments
- Strong experience with Kubernetes, including Helm, RBAC, operators, controllers, and observability tooling
- Hands-on experience building CI/CD pipelines, containerized workloads, and modern deployment strategies such as blue-green and canary releases
- Proficiency with Infrastructure as Code using Terraform or Pulumi and cloud networking fundamentals, including VPCs, DNS, load balancers, and secure connectivity
- Proficiency in Go or Python to build platform automation, infrastructure tooling, and operational workflows
- Experience managing SQL databases and stateful production services with a strong understanding of reliability and performance
- Demonstrated ability to lead cross-functional technical initiatives, make sound decisions in ambiguous situations, and communicate effectively across engineering teams
- 6+ years of experience in SRE, DevOps, or Infrastructure Engineering, ideally within a cloud-native or blockchain environment
- Proven track record of technical leadership in complex, distributed systems architecture and design
- Deep expertise in blockchain protocols and their infrastructure demands
- Deep expertise in Kubernetes internals and tuning for large-scale workloads
- Deep expertise in agentic automation strategies and applying AI tooling in real-world engineering workflows
- Deep expertise in observability and chaos engineering techniques to stress-test reliability
- Experience mentoring engineers and scaling SRE best practices across teams
- Strong engineering judgment with a passion for code quality, automated testing, and operational excellence
- Passion for crypto and blockchain infrastructure, with experience building AI-enabled infrastructure tooling or agentic workflows; familiarity with MCP servers and responsible use of generative AI to improve engineering productivity is a plus
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