Senior Site Reliability Engineer

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Circle (NYSE: CRCL) is one of the world’s leading internet financial platform companies, building the foundation of a more open, global economy through digital assets, payment applications, and programmable blockchain infrastructure. Circle’s platform includes the world’s largest regulated stablecoin network anchored by USDC, Circle Payments Network for global money movement, and Arc, an enterprise-grade blockchain designed to become the Economic OS for the internet.

Enterprises, financial institutions, and developers use Circle to power trusted, internet-scale financial innovation. Learn more at

Circle is committed to visibility and stability in everything we do. As we grow as an organization, we're expanding into some of the world's strongest jurisdictions. Speed and efficiency are motivators for our success and our employees live by our company values:
High Integrity, Future Forward, Multistakeholder, Mindful, and Driven by Excellence. We have built a flexible work environment where new ideas are encouraged and everyone is a stakeholder.

As a Site Reliability Engineer at Circle, you’ll harness AI-powered insights to build and maintain our production infrastructure estate, enabling us to serve a rapidly expanding global customer base across multiple public cloud regions. You’ll apply your experience, technical expertise, and AI-enabled solutions to keep Circle’s products and core systems running consistently, reliably, and with top-tier performance. In a fun, collaborative, and ever-evolving environment, you’ll have ample opportunities to develop new skills, partner with diverse and cross-function teams across the organization, and stay on the cutting edge of technology.

• Empower agile development teams with a high-performance CI/CD pipeline, ensuring fast, high-quality releases with measurable performance and quality metrics.
• Design, maintain, and secure cloud infrastructure using Infrastructure-as-Code tools like Terraform and Crossplane.
• Automate operational tasks using Go, Python, and serverless solutions (AWS Lambda, Kubernetes Jobs).
• Manage and monitor Kubernetes clusters for multiple production workloads.
• Develop and maintain blockchain infrastructure, managing nodes across Ethereum, Solana, Arbitrum, Base, Avalanche, and others.
• Ensure system reliability and security by participating in on-call rotations, troubleshooting disruptions, conducting root cause analysis, and collaborating with Security teams on security-focused tools and frameworks.
• Plan, test, and implement disaster recovery strategies for a highly available microservices architecture.
• Leverage AI-powered solutions for managing infrastructure, analyzing logs, detecting anomalies, capacity planning, maintaining predictively, and optimizing performance.
• Mentor and support team growth, fostering collaboration and scalability.

Site Reliability Engineer (II)

Senior Site Reliability Engineer (III)

• 2+ years in Dev Ops or SRE roles, with a focus on tooling, automation, and infrastructure on a public cloud provider (AWS, Azure, GCP)
• 1+ years in CI/CD platform development and microservices support
• Proficiency in Go, Python, and Shell
• Eagerness to learn emerging AI tools
• Excellent communication skills—able to break down technical concepts and foster collaboration
• Observability, troubleshooting, and performance optimization skills in complex, distributed systems

• Experience with:
• Kubernetes clusters at scale, containerization, and Helm charts.
• Modern CI/CD platforms with seemingly complex gates and workflows
• Distributed blockchain systems and blockchain full nodes
• Networking (routing, DNS, load balancing, edge networking)
• APM, RUM, monitoring, and telemetry tools.
• Database technologies (Postgre
  
  SQL, Redis, Open Search)
• Migrating and transforming large, complex datasets from diverse sources, structures, and formats
• Data warehousing (Apache Airflow, AWS DMS, Snowflake)
• IaC with Terraform or Crossplane for cloud deployments
• AI tools (Git…