Josh Lind is a founding software engineer at Aptos Labs with 11 years of experience building and securing layer-1 blockchain systems, following a Research Scientist role at Meta’s Novi/Diem project. He holds a PhD from Imperial College London focused on security and privacy for large-scale distributed systems using trusted hardware, and was the primary author and tech lead of the Teechain off-chain payments network. At Aptos he contributes backend and security improvements to aptos-core, including data client scaling, P2P monitoring, and defenses against malicious peers. His background includes internships at Google where he helped design confidential computing components for Asylo, and a track record of shipping production security features across high-profile blockchain projects. Notably, he combines deep academic research with hands-on core protocol engineering and active open-source contributions.
11 years of coding experience
3 years of employment as a software developer
Doctor of Philosophy - PhD Computer Science, Doctor of Philosophy - PhD Computer Science at Imperial College London
Visiting Scholar, Visiting Scholar at Cornell University
Aptos is a layer 1 blockchain built to support the widespread use of blockchain through better technology and user experience.
Role in this project:
Back-end Developer & Security Engineer
Contributions:1369 reviews, 290 commits, 1295 PRs in 9 months
Contributions summary:Josh implemented features to support the Aptos data client, allowing for larger chunk sizes, and improved peer-to-peer network monitoring. They also enhanced the security of the network by adding checks for the trustworthiness of peers, enabling features for subscription-based data synchronization, and improving security and quality of service by implementing checks to help prevent malicious responses.
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Josh Lind - Software Engineer (Founding Team) at Aptos