Web3 Infrastructure work focuses on the systems that keep on-chain products reliable. We build and operate RPC services, nodes, indexers, and data pipelines with high availability and observability. We design caching, load balancing, and failover strategies to handle spikes and chain events. We also implement monitoring, alerting, and incident runbooks to keep systems stable in production. Security is built into the stack through access controls, isolation, and key management. The result is infrastructure that supports consistent performance and clean data access for both internal teams and external developers.