Worked on enhancing protocol reliability and data integrity in the sigp/lighthouse and ethereum/consensus-specs repositories, focusing on bug fixes in distributed systems. Addressed a concurrency issue in Rust by introducing a slot-aware subscription mechanism, using an ExactSubnet struct to prevent overwrites and ensure correct aggregation of attestation subnet subscriptions. Improved networking reliability by scoping subscriptions by slot, reducing the risk of missed or duplicated data. In consensus-specs, standardized SSZ deserialization by aligning DataColumnSidecar field order across versions, mitigating cross-version errors and improving protocol interoperability. Demonstrated expertise in Rust, protocol specification, and networking within complex, distributed environments.