Role overview
This role is deeply hands-on and strategic. As Senior DevOps Engineer, you’ll own the design, automation, and reliability of Linea’s infrastructure. You will work directly with AWS, Kubernetes, Karpenter, Terraform, and Grafana, driving operational excellence, security, and rapid iteration in a cloud-native environment. You’ll partner with engineers, product, and SREs to deliver reliable and cost-efficient mainnet services for a fast-moving blockchain business.
You’ll work with top engineers building critical infrastructure for the future of finance and Web3, in a collaborative, fast-paced, and remote-first setting. The scope spans security, cost management, operational excellence, and rapid iteration at scale.
Responsibilities
- Architect, build, and maintain AWS cloud infrastructure supporting Linea Mainnet/L2 nodes and supporting services.
- Design and optimize Kubernetes clusters for scaling, resiliency, and healthy node operations, leveraging Karpenter autoscaling and spot instance capabilities.
- Implement infrastructure-as-code using Terraform for reproducible, secure, and audit-ready deployments.
- Own monitoring, alerting, and observability pipelines (Grafana, Prometheus, Loki) for end-to-end production health and actionable insights.
- Drive automation of deployment and operational workflows, enabling zero-downtime upgrades and rapid rollbacks.
- Participate in incident response, root cause analysis, and postmortem reporting for production blockchain services.
- Collaborate closely with engineering teams to identify opportunities for reliability and performance improvements.
- Document infrastructure, operational protocols, and DevOps best practices, ensuring knowledge sharing and team alignment.
- Stay current with new tools and cloud advancements relevant to blockchain, DevOps, and Kubernetes ecosystems.
- Senior/Staff experience with AWS cloud services and advanced Kubernetes ops, in production-grade environments.
- Proven experience in infrastructure-as-code, particularly Terraform, and delivering best practices for security and scalability.
- Proficiency in monitoring/observability tools: Grafana, Prometheus, Loki.
- Hands-on with Kubernetes autoscaling (Karpenter or Cluster Autoscaler) and EC2 spot instance cost optimization.
- Strong scripting/programming skills (Bash, Python, Go, or similar).
- Strong troubleshooting, communication, and documentation abilities.
- Blockchain/Layer 2 protocol, cryptography, and Web3 infrastructure experience preferred but not required.
- Experience working in agile, high-performance teams within top technology environments.
About the company
Linea is the home network for the world. One where users are in control, empowered to set the terms for their digital and financial lives. Our leading ZK technology makes Ethereum effortless, unlocking web2-like speed, cost, and scale. We offer rich builder support, including Metamask Developer integrations, to help builders create more powerful, stickier dapps. Spearheaded by Ethereum ecosystem leaders, and together with the Linea community—we drive significant advancements across onchain experience for everyone.
We are the zkEVM Layer-2 blockchain powered by Consensys, built to scale Ethereum while preserving its security and decentralization. Launched in July 2023, Linea rapidly established itself with over $370M in Total Value Locked (TVL) across 400+ apps and 250M transactions processed, making it the largest zkEVM blockchain by total value secured (excluding associated tokens). Our mission is to empower everyone to live onchain.