Devops

Maintained high availability for 30+ validator and operator nodes across 16 blockchain networks including Ethereum, SSV Network, Cosmos, Cardano, Babylon, 0G, Sui, IOTA, Mina, IoTeX, Band, XION, CARV, Nexus, Harmony and Shentu through proactive monitoring, incident response, and operational automation. Managed validator operations including execution/consensus client configuration, binary upgrades, snapshot restoration, pruning, validator key rotation, and rollback procedures while following change-management practices to avoid downtime and slashing events. Investigated synchronization failures, peer connectivity issues, missed attestations, RPC endpoint failures, and service outages. Wrote Bash automation for health checks and service recovery, and maintained operational runbooks. Participated in on-call rotations, monitoring, incident response, disaster recovery and production maintenance across multiple blockchain networks.

Deployed, maintained and supported 60+ validator, RPC, full, archive, and light nodes across Ethereum, Cosmos SDK, Solana, and other blockchain networks. Worked with Ethereum execution and consensus clients including Geth, Reth, Erigon and Prysm while deploying and testing RPC infrastructure for Ethereum testnets. Provisioned servers, synchronized nodes from genesis and snapshots, restored nodes from snapshots to recover from desync or accelerate initial sync, managed pruning, client upgrades, rollback procedures, and day-to-day node operations. Wrote Bash and Python automation for node provisioning, health checks, service restarts, and routine operational tasks; contributed to Ansible playbooks used for blockchain node deployment and infrastructure automation. Diagnosed and resolved synchronization failures, peer connectivity issues, RPC endpoint problems, checking peer configuration, NAT/firewall rules, and client logs to identify root causes. Monitored node synchronization, block height, peer count, resource utilization, and service health using internal monitoring and alerting tools, responding to infrastructure issues and restoring node health.