Lucas Saldanha
Lead Blockchain Protocol Engineer at ConsenSys
Auckland, Auckland, New Zealand
Summary
🤩
Rockstar🎓
Top SchoolLucas Saldanha is a Lead Blockchain Protocol Engineer with 12 years of software engineering experience and six years focused on the Ethereum protocol, currently driving protocol work at ConsenSys from Auckland, New Zealand. He has led engineering efforts on major open-source Ethereum clients—Teku and Besu—contributing core features like Teku’s Remote Validator service and JSON-RPC improvements in Besu, and improving observability and robustness across clients. Comfortable across backend, DevOps and consensus-spec work, Lucas blends low-level protocol design, formal testing, and practical API/storage interfaces to make consensus implementations production-ready. He previously led teams in telematics and payments, bringing systems-design and team leadership experience to complex distributed systems. A continual learner and pragmatic engineer, he pairs academic training (Master’s in IT) with hands-on contributions to widely used open-source Ethereum projects. Notably, his work spans both client implementation and consensus-spec tweaks, giving him rare visibility across protocol stack and node behavior.
12 years of coding experience
7 years of employment as a software developer
Master, Information Technology, Master, Information Technology at The University of AucklandBachelor, Computer Science, Bachelor, Computer Science at Fluminense Federal University (UFF)
Portuguese, English
Stackoverflow
891reputation
153kreached
22answers
0questions
Github Skills (37)
json-rpc10
beacon10
consensus10
subscribe10
python10
apidoc10
testing10
websocket10
chain10
java10
javas10
manage10
api10
websockets-client10
subscriber10
Programming languages (20)
Github contributions (5)
hyperledger/besu
Oct 2018 - Oct 2022
An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client https://wiki.hyperledger.org/display/besu
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 218 reviews, 146 commits in 4 years 1 month
Contributions summary:Lucas primarily worked on enhancing the Besu Ethereum client, implementing features and addressing issues related to JSON-RPC endpoints. Their contributions involved modifying test suites for improved functionality, incorporating checks and error handling. The user's work also involved implementing new methods, and updating methods with the goal of ensuring proper data management and security.
besuhyperledgerlicensedethereump2p
Consensys/teku
Jul 2020 - Jan 2023
Open-source Ethereum consensus client written in Java
Role in this project:Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:17 releases, 593 reviews, 114 commits in 2 years 6 months
Contributions summary:Lucas primarily worked on implementing and improving the Remote Validator service, a key component of the Teku Ethereum consensus client. Their contributions included creating the Remote Validator service, adding API CLI options, and adding metrics to monitor its performance. They also refactored code, fixed issues, and implemented new API methods related to validator subscriptions and aggregate attestation. These actions indicate work in both backend API development and improving the monitoring and observability through metrics.
artemisconsensysethereumbeacon-chainblockchain
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