dimavezhnovetc

• Developed an bytecode-to-source decoder pipeline, enabling translation from raw EVM bytecode to readable opcode and human-friendly Solidity-like representations, significantly improving smart contract analysis and auditing efficiency. • Built an interactive DeFi questing platform where users complete tasks involving protocol interactions (swaps, staking, lending, bridging), boosting user engagement and onboarding through gamified learning. • Designed and deployed smart contracts for quest validation and user progress tracking, incorporating Chainlink automation. • Created a dynamic dashboard in Next.js + Wagmi with wallet authentication and progress tracking, enabling users to view quest status and claim on-chain rewards seamlessly. • Integrated protocol Uniswapv3 using contract SDKs and multicall strategies to allow rich interaction within quests. • Implemented backend services in Java and Spring to handle off-chain computation and rate limits, improving platform scalability.

• Developed and launched PiggyHodl, a gamified DeFi savings platform leveraging ERC-777 tokens, ERC-721 NFTs, and smart contract automation to incentivize long-term user holding, leading to a 30% increase in user retention over 6 months. • Engineered staking pools and time-locked vaults using Solidity, OpenZeppelin libraries, and Hardhat, implementing tiered reward multipliers based on wallet activity and staking duration. • Get part in designing and developing the PiggyHodl DAO with on-chain governance via Snapshot and EIP-712 signed votes, allowing the community to manage protocol parameters like inflation rate and staking APR. • Integrated The Graph for real-time indexing of staking activity, and IPFS for decentralized NFT metadata storage. • Built the frontend with React, Next.js, and Ethers.js, featuring dynamic dashboards and wallet integrations with MetaMask. • Conducted advanced fuzz testing with Echidna and Foundry, discovering and resolving a critical vulnerability in the protocol’s Math utility functions before mainnet deployment, mitigating a potential 6-figure loss.

Worked as part of the core digital banking team on enterprise-level application(online bank web application for entrepreneur) .

Contributed to the development of a credit decision automation platform, collaborating with cross-functional teams including analysts automation platform.