June 2025: Delivered Feynman fee calculation upgrades for scroll-tech/go-ethereum, including a compression-aware rollup fee formula and integration of L2 base fee calculation into the client. Prepared the codebase for the Feynman upgrade and subsequent L2 interactions. No major bugs fixed are documented for this repository this month. Business impact includes more accurate and predictable fees, improved user and dapp experience, and smoother upgrade readiness. Core technical competencies demonstrated include Go code changes, fee modeling, L2/L3 rollup integration, and PR-driven development.

May 2025 (scroll-tech/scroll): Delivered enhancements to the Sequencer/Relayer Batch Submission Strategy to reduce gas costs and increase reliability. Implemented blob-fee history and target price-based submission timing, dynamic timing refinements using L1 blob fee data, block-time based timing with additional performance metrics, enhanced logging for commit prices and blob base fee capture, and improved error handling for pending blob transactions. Added version tagging for release traceability. Fixed a bug in the submission strategy and improved log coverage for commit prices. Overall impact: more predictable batch submissions, lower gas per batch, improved observability, and safer handling of pending transactions. Key features delivered focus: Sequencer/Relayer Batch Submission Strategy Enhancements; blob-fee history; target price-based timing; dynamic timing with L1 blob data; block-time timing; enhanced logging; error handling for pending transactions; version tagging.