3–6 years of experience in technical support engineering, site reliability, or DevOps roles within blockchain, distributed systems, or high-performance networking environments Deep understanding of Ethereum staking, consensus mechanisms, and validator infrastructure Strong proficiency in Linux system administration, shell scripting, and networking (TCP/IP, DNS, peer-to-peer protocols) Experience with monitoring tools (Grafana, Prometheus, ELK stack) Experience with cloud infrastructure (GCP) Ability to debug and analyze performance bottlenecks at network, protocol, and application levels Excellent communication skills