May 2026 performance highlights across two repositories, delivering stability, reliability, and faster development cycles. In hiero-json-rpc-relay, upgraded the Platform SDK to @hiero-ledger/sdk 2.83.0 (migrating imports and dependencies; commit 40810f529b14401021849533cc34cc4c64d82b33), and standardized testing across WebSocket and HTTP protocols (commit 4c205706e0ae02674efb4038144345cb6f998378). In hashgraph/hedera-smart-contracts, migrated the Hedera local node to a solo deployment, with workflow updates, enhanced debugging steps, and version adjustments to improve functionality and performance (commit 4529d96af4362373cf63a03b222ea6fd10ea7202). These changes reduced technical debt, improved test reliability, and enhanced local development parity, enabling faster issue diagnosis and safer production readiness. Technologies demonstrated include JavaScript/TypeScript, SDK migrations, CI/CD workflow automation, multi-protocol testing, logging/diagnostics, and container/orchestration workflow improvements.

April 2026: Focused on improving test reliability for gas accounting and enriching fee history data in hiero-json-rpc-relay. Key work included: (1) Testing framework improvements for gas usage and gas limit assertions, aligned with dynamic block gas limits (HAPI version), with a new helper to compute expected cumulative gas used and clarified test titles; (2) Fee history data enhancement by adding gasUsedRatio per block in eth_feeHistory to improve data accuracy for clients. These changes were complemented by targeted bug fixes to stabilize tests and ensure assertions reflect the actual blockGasLimit behavior. Result: more robust test suite, more accurate fee data, and clearer maintenance path for future gas accounting changes. Tech stack demonstrated includes test automation, historical data enrichment, and attention to network dynamics.

March 2026: Delivered focused features and fixes across hiero-json-rpc-relay and hashgraph/hedera-smart-contracts, emphasizing debugging improvements, data accuracy, performance optimizations, and codebase health. Notable outcomes include a new debug_getRawTransaction API, robust handling for no-op transaction tracing, corrected cumulative gas calculations in receipts, a significant system contracts cleanup, and worker pool idle timeout/log optimization, delivering quicker issue diagnosis, reliable metrics, quieter logs, and a leaner project structure.

February 2026: Delivered notable enhancements to hiero-json-rpc-relay with a focus on environment standardization, debugging capabilities, and test coverage to improve reliability, maintainability, and developer onboarding.