Olaoluwa Osuntokun
CTO at Lightning Labs
Goleta, California, United States
Summary
🤩
Rockstar🎓
Top SchoolOlaoluwa Osuntokun is a seasoned cryptography-minded engineering leader and co-founder serving as CTO of Lightning Labs with 13 years building privacy-preserving, high-performance Bitcoin and Lightning Network infrastructure. He combines deep protocol and back-end expertise—demonstrated by significant contributions to btcd, btcwallet, and the Lightning onion routing (Sphinx) implementation—with hands-on product work on wallets and non-custodial bridges like Loop. Based in Goleta, California, he bridges research and production: his academic background in cryptography and work on ECC and searchable encryption inform pragmatic engineering choices that improve privacy, reliability, and performance. Known in the open-source community for low-level Bitcoin improvements (signature caching, sighash optimizations, BIP69 sorting) and for hardening Taproot-related primitives, he focuses on making complex cryptographic protocols usable at scale. He mentors engineers and has teaching experience across algorithms, OS, and security, reflecting a commitment to clear, maintainable designs. A creative aside: his GitHub bio reads “half-man, half-beef,” hinting at a playful personality behind rigorous technical work.
13 years of coding experience
2 years of employment as a software developer
Master of Science (MS) Computer Science, Master of Science (MS) Computer Science at UC Santa Barbara
Github Skills (45)
crypto-wallet10
wallet10
transaction10
transactional10
sha10
lightning-network10
bitcoin-wallet10
testing10
bitcoin10
data-serialization10
bitcoins10
serialization10
security10
cryptocurrency10
script10
Programming languages (17)
Github contributions (5)
lightningnetwork/lightning-onion
Oct 2015 - Dec 2022
Onion Routed Micropayments for the Lightning Network
Role in this project:
Back-end Developer & Cryptography Engineer
Back-end Developer & Cryptography EngineerContributions:11 reviews, 139 commits, 43 PRs in 7 years 3 months
Contributions summary:Olaoluwa made significant contributions to the `lightning-onion` repository, focusing on the implementation of the Sphinx onion routing scheme. Their work involved creating and refining core cryptographic components for the Sphinx packet format, and included the creation of both encryption and decryption routines, in addition to adding associated test vectors. The user also implemented several supporting functions, such as padding and data formatting methods, and made the project importable as a library by refactoring the top-level package name. This work is aimed at creating a more robust and privacy-preserving onion routing solution for the Lightning Network.
cryptographyonion-architecturelightningblockchainonion
lightninglabs/neutrino
May 2017 - Nov 2022
Privacy-Preserving Bitcoin Light Client
Role in this project:Back-end Developer
Back-end DeveloperContributions:109 reviews, 313 commits, 151 PRs in 5 years 7 months
Contributions summary:Olaoluwa primarily focused on making code improvements and adding comments to the core Neutrino light client. Their work included adding additional comments, making minor cosmetic and style changes within the block manager, and modifying database-related files. This indicates a focus on understanding and improving the code's readability and maintainability, as well as minor structural changes.
lightprivacylight-clientcryptocurrencydistributed-systems
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