Paul Berg
Co-Founder And CEO at Sablier
Romania
Summary
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Rockstar🎓
Top SchoolPaul Berg is a founder-led software engineer and CEO with a decade of experience building and scaling Web3 products, currently leading Sablier—a token distribution protocol that has processed over 1.2M Ethereum transactions and closed a $4.5M seed round. He combines hands-on Solidity and Rust development (notably contributions to the popular Foundry toolkit and forge-std) with product and operational leadership, having previously led Hifi’s technical team and pioneered ERC-1620-based money streaming. Comfortable across the stack, Paul architects and tests smart contracts, builds developer tooling and templates, and drives CI and developer experience improvements. He started shipping software in his teens—co-founding multiple startups and shipping mobile apps—and retains a bias for shipping robust, well-tested crypto primitives and libraries used by other developers. An active open-source contributor (foundry, prb-math, Hardhat/Foundry templates), he blends protocol-level thinking with pragmatic engineering and a founder’s focus on traction and governance.
10 years of coding experience
7 years of employment as a software developer
Baccalaureate, Mathematics and Computer Science, Baccalaureate, Mathematics and Computer Science at Emil Racovita National CollegeUniversity College London
Romanian, English, French
Stackoverflow
19,259reputation
2.6mreached
128answers
163questions
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Github Skills (42)
foundry10
javascript10
solidity10
testing10
windows10
mathematics10
evm10
typescript10
forge10
math10
ether10
ethereum10
blockchain10
typescript-types10
smart-contracts10
Programming languages (31)
Github contributions (5)
PaulRBerg/prb-math
Mar 2021 - Jan 2023
Solidity library for advanced fixed-point math
Role in this project:
Backend Developer & Smart Contract Engineer
Backend Developer & Smart Contract EngineerContributions:52 releases, 42 reviews, 397 commits in 1 year 10 months
Contributions summary:Paul made significant contributions to the `prb-math` repository, a Solidity library for advanced fixed-point math. Their work involved enabling the Hardhat gas reporter and adding comprehensive test cases for functions like `log2`. They also refactored and optimized the code, including changes to allow only int256 inputs for the `log2` functions. Additionally, the user implemented and tested new mathematical functions like `exp`, `ceil`, `floor`, `inv`, and `gm`, which are essential functionalities for the library.
mathethereumevmsoliditypoint
PaulRBerg/foundry-template
Jul 2022 - Jan 2023
Foundry-based template for developing Solidity smart contracts
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:4 reviews, 67 commits, 29 PRs in 6 months
Contributions summary:Paul primarily focuses on writing and maintaining tests for Solidity smart contracts within the Foundry framework. Their contributions include importing and using testing libraries like `forge-std`, refactoring and renaming test contracts and functions, and implementing fuzz tests to improve the quality of the smart contracts. They also added an Ethereum Mainnet fork test, demonstrating familiarity with testing against real-world blockchain data.
foundrytemplatedevelopingethereumblockchain
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