Alexander Biryukov
Senior Blockchain Engineer • Solidity • EVM • DeFi • Web3 Security
Building and breaking things on-chain since 2014. From stock broker systems to Ethereum staking at P2P Validator, with stops at Notre Dame research, dApp studios, and the PancakeSwap ecosystem along the way. Currently focused on Solidity, Web3 security, DeFi vaults, smart accounts (ERC-4337/7702/Safe), and vulnerability research.
The Short Version
I got into crypto in 2014 while working at a Chicago stock brokerage — automating trades by day, reading Bitcoin whitepapers by night. By 2016 I was at Notre Dame researching blockchain consensus, then went full-time into Ethereum smart contracts. A decade later, I've shipped staking infrastructure for some of the largest validators (over $10B TVL), built DeFi yield strategies across AAVE/Morpho/Ethena/Resolv/Superform, and developed AI-powered auditor skills covering 578 attack vectors across Solidity, Solana, Move, and TON.
This site — crypto.training — is where I share notes on smart contract security, EVM internals, audit methodology, and the tools I wish existed when I started.
What I Work With
Smart Contract Security
Ethereum & DeFi
Smart Accounts
General Engineering
Journey
Ethereum staking R&D (Lido on Ethereum & Gnosis Chain). DeFi yield aggregation across Morpho, Ethena, Resolv, Superform, Mellow. Smart account integration with ERC-4337, Gnosis Safe, ERC-7579 modules, EigenLayer, SSV.
Full-stack & Solidity development. AMM contracts (UniswapV2-based), MasterChef, trading charts, event indexing via The Graph.
End-to-end architecture of a fraud monitoring system. Oracle DB stored procedures, Java/Spring Boot middleware, React/Redux frontend.
Decentralized application development: Lunyr (decentralized Wikipedia), Votery (DAO governance). Truffle, Web3.js, IPFS.
Blockchain applications in finance and IoT. Consensus algorithm research and prototyping. Ph.D. program.
Full-stack development for TradingBlock stock broker. MS SQL Server, C#/.NET, JavaScript.
Education
Open Source
Shipped at P2P.org
Production Solidity contracts for staking, DeFi vaults, DVT, and smart account modules — audited by MixBytes.
DeFi Vaults
Lending proxy and yield vault contracts deployed on Ethereum, Base, and Optimism.
Ethereum Staking
Fee distributor contracts, oracle reporter, and merkle drop for ETH staking infrastructure.
SSV (DVT) Staking
Distributed validator technology proxy and cluster manager contracts.
Account Abstraction & Safe Modules
Gnosis Safe integrations, Zodiac roles modifier for deposits, EigenLayer proof submission, and Superform executor.
Lido on Gnosis Chain
Contributed to the Lido DAO fork for Gnosis Chain deployment.
Early Solidity Work
On-Chain
Beyond Code
When I'm not staring at bytecode, you can find me skiing, hiking, or playing with my children. Languages: Russian (native), English (professional). Based in Almaty, Kazakhstan — working remotely across time zones since 2014.