Senior or Staff Site Reliability Engineer - Performance Engineering

Circle is a financial technology company at the epicenter of the emerging internet of money, where value can finally travel like other digital data — globally, nearly instantly and less expensively than legacy settlement systems. This ground-breaking new internet layer opens up previously unimaginable possibilities for payments, commerce and markets that can help raise global economic prosperity and enhance inclusion. Our infrastructure – including USDC, a blockchain-based dollar – helps businesses, institutions and developers harness these breakthroughs and capitalize on this major turning point in the evolution of money and technology.

What you’ll be part of:

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: Multistakeholder, Mindfulness, Driven by Excellence and High Integrity. Circlers are consistently evolving in a remote world where strength in numbers fuels team success. We have built a flexible and diverse work environment where new ideas are encouraged and everyone is a stakeholder.

What you’ll be responsible for:

As a Senior Site Reliability Engineer at Circle, you will design, build, and maintain Circle’s infrastructure estate to meet the growing worldwide customer base on public cloud providers across multiple regions. You will use your experience, knowledge, and skills to ensure Circle’s products and core systems are running consistently, reasonably, and in a performant manner. This is a unique opportunity to develop your skills, collaborate with cross-functional teams and continuously learn in a dynamic and fast-paced environment. Join Circle and join a fun, collaborative, and innovative team dedicated to delivering exceptional customer experiences.

What you'll work on:

• Support multiple development teams with an agile, responsive CI/CD platform to deliver high-quality builds with measurable performance and quality;
• Build, maintain, improve, scale, and secure cloud infrastructure and resources using IaC tools (Terraform, CloudFormation, Ansible);
• Automate operational tasks via Go, Python, and serverless solutions (AWS Lambda, Kubernetes Jobs);
• Design, manage, and monitor Kubernetes clusters for multiple production workloads;
• Driving forward our blockchain infrastructure by creating and managing blockchain nodes across a wide variety of blockchains that includes Algorand, Ethereum, Hedera, Flow, Solana, Stellar;
• Participate in an on-call rotation to mitigate disruption for any production systems and conduct root cause analysis;
• Plan and test disaster recovery scenarios …