Senior or Staff Site Reliability Engineer

Summary

The job is for a Senior Site Reliability Engineer at Circle, a financial technology company focusing on the internet of money. The role involves designing, building, and maintaining infrastructure, supporting development teams with CI/CD platforms, automating operational tasks, managing Kubernetes clusters, driving blockchain infrastructure, participating in an on-call rotation, planning disaster recovery scenarios, collaborating with the Security team, and mentoring team members.

Requirements

• 4+ years in DevOps or SRE roles, with a focus on tooling, automation, and infrastructure on a major public cloud provider
• Proficiency with coding and/or scripting with the following languages (Go, Python, Shell)
• At least 3 years of combined experience in building and maintaining CI/CD platforms and supporting agile engineering teams in building microservices
• Experience with: Building Docker images and deploying containers in Kubernetes clusters; Any modern CI/CD platform with seemingly complex gates and workflows; Blue-Green, Canary, and A/B Testing deployment strategies; Distributed blockchain systems, running and maintaining blockchain full nodes; Database technologies (PostgreSQL, Redis, OpenSearch); Migrating and transforming large, complex datasets from diverse sources, structures, and formats; Data warehousing tooling and services (Apache Airflow, AWS DMS, Snowflake)
• Knowledge of networking routing, DNS, load balancing, and edge networking; Knowledge of APM, RUM, monitoring, and telemetry tools; Helm charts and deploying and maintaining Kubernetes clusters; Authoring and maintaining IaC with Terraform and using IaC to deploy resources in AWS, Azure, GCP, or any other public cloud providers
• Strong skills around observability, troubleshooting, and performance solutions; Ability and eagerness to deep dive into understanding, debugging, and improving any layer of the tech stack; Exhibit strong communication skills and ability to explain technical concepts to peers and stakeholders

Responsibilities

• 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 for a highly available microservices architecture