Konrad Staniec is a Staff Software Engineer with 11 years of experience specializing in blockchain and distributed systems, currently working at Babylon Labs after consecutive staff roles at BabylonChain. He has deep protocol-level expertise as a core Ethereum developer—contributing to Portal Network specs and working on Nimbus, an Ethereum execution client optimized for resource-constrained devices—bringing practical bug fixes, gas validation, bridge-client stubs and performance improvements. His background spans backend systems in Scala/Java and a prior engineering foundation in aeronautics, which informs a rigorous, systems-oriented approach to design and reliability. Known for shipping production-grade protocol implementations and improving low-level client correctness, he blends research-minded protocol development with hands-on engineering. Based in Poland, he thrives at the intersection of low-resource client engineering and scalable blockchain protocol work.
11 years of coding experience
11 years of employment as a software developer
Inżynier (Inż.) Inżynieria mechaniczna, Inżynier (Inż.) Inżynieria mechaniczna at Warsaw University of Technology
Nimbus: an Ethereum Execution Client for Resource-Restricted Devices
Role in this project:
Back-end Developer
Contributions:110 reviews, 102 commits, 172 PRs in 1 year 6 months
Contributions summary:Konrad primarily contributed to the back-end logic of the Nimbus Ethereum Execution Client. They addressed a critical bug by implementing missing gas used validation, ensuring the integrity of block headers. Furthermore, the user implemented stubs and features for a bridge client, including adding the client to the fluffy runner and modifying configurations, expanding the capabilities of the client. The user also worked on adding support for handling experimental API calls and also worked on improving the performance of some components.
Contributions:18 releases, 42 reviews, 132 PRs in 8 months
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