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, redundancy, fault tolerance, and cost optimization. • Familiarity with containerization (Docker, Kubernetes) and networking fundamentals across cloud and datacenter environments. • A proactive, analytical mindset and the ability to deliver under pressure while fostering a culture of continuous improvement and reliability. • Excellent communication and documentation skills to facilitate alignment across cross-functional engineering teams. The Quicknode compensation philosophy includes pillars to ensure fair and unbiased compensation for all employees. To design and deliver total reward offerings that are employee-centric. To offer a competitive benefit package in all locations where we operate. To prioritize attracting and retaining the best talent global