Senior Infrastructure Engineer, Core Systems

Quicknode is a cloud-based infrastructure company that powers the blockchain ecosystem. Our mission is to be the indispensable utility that empowers companies and innovators globally to build next-generation, Web3 enabled businesses & applications using blockchain technology. Quicknode is backed by some of the world's best investors including Tiger Global, Y Combinator, SoftBank, and the Seven Seven Six Fund. The Quicknode team has over 110 people maintaining high performance global data infrastructure for amazing customers serving billions of requests daily. We are a global remote company with offices in Fort Lauderdale, FL and Lisbon, Portugal. The Role As a Senior Infrastructure Engineer at Quicknode, you’ll play a pivotal role in architecting, developing, and implementing our next-generation infrastructure platforms across both private and public clouds. This role focuses on building robust, scalable systems that go beyond traditional cloud deployments — developing hybrid environments that integrate bare-metal, virtualization, and orchestration technologies. You’ll drive automation, standardization, and operational excellence across Quicknode’s infrastructure ecosystem, ensuring performance, reliability, and scalability as we expand our Web3 infrastructure footprint globally. What You'll Do Research, architect, and deploy complex infrastructure systems across bare-metal servers, hypervisors, orchestrators, virtual machines, and containerized environments. Design and implement automation using Infrastructure-as-Code and Configuration Management principles (Terraform, Ansible, Consul) to ensure reproducibility, speed, and consistency in infrastructure deployment. Establish and maintain infrastructure standards, documentation, and architecture diagrams to support scale, reliability, and compliance across environments. Partner with Technical Operations, CloudOps, and Platform teams to ensure smooth integration of systems, improve deployment efficiency, and enhance observability. Optimize resource allocation and infrastructure cost efficiency while maintaining performance and uptime goals. Continuously improve resilience and scalability through proactive capacity planning, disaster recovery testing, and infrastructure modernization initiatives. What You'll Bring Minimum 5 years of experience in Systems Administration, Datacenter Operations, or Infrastructure Engineering, with deep expertise in Linux/Unix systems. Proven success designing and managing hybrid cloud and traditional infrastructure platforms at scale (bare-metal, virtualized, and cloud-native). Hands-on experience with automation, configuration management, and CI/CD tools such as Terraform, Ansible, Consul, and Jenkins. Proficiency with observability and monitoring platforms (Grafana, ELK, VictoriaMetrics, DataDog). Programming experience in one or more languages such as Python, Go, or JavaScript. Strong understanding of infrastructure architecture principles — scalability, redunda