Biography
David Kim is the Blockchain Engineer and Technical Editor at BlackPearlBitcoin, covering layer-2 scaling, zero-knowledge proofs, consensus mechanics, and cross-chain interoperability from a working engineer's perspective. He has 10 years of distributed-systems engineering, six of them specifically on production blockchain infrastructure.
David holds a Master of Science in Computer Science (specialization in distributed systems) from Carnegie Mellon University (2015) and a Bachelor of Science in Computer Engineering from KAIST (2013). He holds the Certified Ethereum Developer credential (ConsenSys Academy, 2019) and the Hyperledger Certified Blockchain Developer credential (Linux Foundation, 2020).
Before joining BlackPearlBitcoin in 2024, David was a Core Developer at the Ethereum Foundation (2020–2024), where he contributed to consensus-layer specifications for the Merge and worked on the proposer-builder separation (PBS) roadmap. Earlier roles include Protocol Engineer at Optimism (2019–2020) where he co-authored the original optimistic-rollup compiler implementation, and Distributed Systems Engineer at Google Cloud (2015–2019).
His peer-reviewed publications include three papers on Byzantine fault-tolerant consensus (ACM Distributed Computing 2022, 2023; IEEE Transactions on Dependable and Secure Computing 2024). David maintains five open-source blockchain tooling projects on GitHub with a combined 5,400+ stars, and has audited new protocol implementations for the Ethereum Foundation, Optimism, Arbitrum, and Polygon zkEVM.
David's coverage focuses on rollup architectures (optimistic and ZK), restaking and shared-security models, account abstraction, MEV-aware block-building, cross-chain bridges, and the practical engineering of consensus protocols. As Technical Editor, David fact-checks every article that touches protocol mechanics or smart-contract behavior against primary-source code.