Philip Hayes
Co-Founder at Lexe
Berkeley, California, United States
Summary
🤩
Rockstar🎓
Top SchoolPhilip Hayes is a co-founder and CTO-level engineer with 13 years of experience building secure, high-performance back-end systems for blockchain and distributed networks. Based in Berkeley, he led core networking and time-service work at Diem (Meta) and contributed security- and retribution-focused features to the widely used Lightning Network Daemon, demonstrating deep expertise in Bitcoin/Lightning protocol internals. He now builds Lexe, a self-custodial Bitcoin and Lightning wallet, blending product leadership with hands-on systems engineering. His academic work in stochastic analysis of Proof-of-Stake rewards and history creating Blockchain at Berkeley’s flagship courses and executive education show a rare mix of research rigor, teaching, and product execution. Notably, he has repeatedly optimized critical production pipelines and network modules to improve robustness and observability at scale.
13 years of coding experience
3 years of employment as a software developer
Campbell Hall High SchoolBachelor of Science - BS Electrical Engineering and Computer Science (EECS), Bachelor of Science - BS Electrical Engineering and Computer Science (EECS) at UC Berkeley College of Engineering
English, Danish, French, Japanese
Github Skills (19)
lightning-network10
bitcoin10
bitcoins10
networking10
rpc10
go10
network-protocol10
cryptography10
blockchain10
protocols10
rust10
concurrency10
testing9
boltdb9
metric9
Programming languages (11)
Github contributions (5)
diem/diem
Jun 2019 - Nov 2021
Diem’s mission is to build a trusted and innovative financial network that empowers people and businesses around the world.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:356 reviews, 339 commits, 124 PRs in 2 years 4 months
Contributions summary:Philip focused on enhancing the core networking capabilities within the Diem blockchain project, with contributions primarily in the `network` module. Their work involved resolving critical networking issues, adding new features such as remote server options for benchmarking, enhancing RPC, and adding new metrics for network health and connections. Furthermore, the user was responsible for implementing and refactoring the time-service. This effort involved directly working with the network architecture and infrastructure.
diemfinancialtrustedethereumblockchain
lightningnetwork/lnd
Apr 2017 - May 2017
Lightning Network Daemon ⚡️
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits, 2 PRs, 12 comments in 18 days
Contributions summary:Philip primarily contributed to the back-end functionality of the Lightning Network Daemon (LND). Their work included adding new RPC interfaces for message signing and verification using zbase32 encoding, and modifying code related to compact signatures and public keys. They also implemented and refactored code related to contract breach handling and retribution within the system and improved serialization methods for internal data structures. Their contributions focused on enhancing security, adding functionality and improving the overall robustness of the Lightning Network protocol implementation.
cryptographypaymentsprotocoldaemonlightning
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