👋🏻 Bio
active 43 minutes ago
Actively looking
I’m a Lead Smart Contract Engineer with 5+ years of experience building and auditing Solidity systems. At Swarm Markets, I lead architecture for a regulated RWA platform covering tokenization, OTC settlement, compliance, staking, vaults, and cross-chain synchronization across ten mainnets.
I combine production delivery with a security background from Hacken, where I audited DeFi and EVM protocols. I also contribute multi-chain contract work at [REDACTED] across EVM, StarkNet, and TON, with hands-on Foundry, Hardhat, Chainlink, TypeScript, and Web3 integrations experience.
Current Location: Kyiv, Ukraine
Languages: English, Russian, Ukrainian
I combine production delivery with a security background from Hacken, where I audited DeFi and EVM protocols. I also contribute multi-chain contract work at [REDACTED] across EVM, StarkNet, and TON, with hands-on Foundry, Hardhat, Chainlink, TypeScript, and Web3 integrations experience.
Skills:
Blockchain Development
Javascript
Solidity
Artificial Intelligence
Blockchain
💼 Experience
Smart Contract Lead / Advisor
M0narch
Blockchain Development
Solidity
Frontend Development
Led pre-launch smart-contract architecture for an on-chain iGaming platform focused on provably fair betting and fully on-chain game mechanics.
Designed Solidity contracts for betting flows, game settlement, payouts, treasury and fee handling, and reusable modules for a multi-game roadmap. Integrated Pyth for fairness-critical game outcomes and transparent on-chain verification of randomness, settlement, and payout logic.
Owned contract architecture, testing methodology, security hardening, and deployment workflows through testnet and pre-launch stages. Coordinated with product and frontend teams on contract interfaces, and used Gnosis Safe multisig, batch transactions, and Tenderly for operational workflows and debugging.
Designed Solidity contracts for betting flows, game settlement, payouts, treasury and fee handling, and reusable modules for a multi-game roadmap. Integrated Pyth for fairness-critical game outcomes and transparent on-chain verification of randomness, settlement, and payout logic.
Owned contract architecture, testing methodology, security hardening, and deployment workflows through testnet and pre-launch stages. Coordinated with product and frontend teams on contract interfaces, and used Gnosis Safe multisig, batch transactions, and Tenderly for operational workflows and debugging.
Smart Contract Engineer — Multichain (Solidity, Cairo, Threaded Solidity)
Belong.net
Blockchain Development
Solidity
Frontend Development
Build and ship multi-chain smart-contract systems across EVM, StarkNet, and TON. Delivered ERC-721 access tokens, ERC-1155 credit tokens, factory deployments, royalties, vesting wallets, escrow, staking, payments, $LONG token logic, and EIP-712 signature verification.
Built the Belong CheckIn protocol end to end: venue deposits, customer payments, promoter attribution, ERC-1155 credit accounting, staking-tier fees, escrowed payouts, and $LONG buyback-and-burn routing.
Implemented DEX swap infrastructure for $LONG/USD-token flows across Uniswap- and PancakeSwap-style V3/V4 routers, including Permit2 approvals, price-feed-based slippage checks, fork tests, and deployment scripts. Delivered tests, mocks, deployment, upgrade, and verification scripts using Hardhat, Foundry, StarkNet tooling, and Locklift.
Built the Belong CheckIn protocol end to end: venue deposits, customer payments, promoter attribution, ERC-1155 credit accounting, staking-tier fees, escrowed payouts, and $LONG buyback-and-burn routing.
Implemented DEX swap infrastructure for $LONG/USD-token flows across Uniswap- and PancakeSwap-style V3/V4 routers, including Permit2 approvals, price-feed-based slippage checks, fork tests, and deployment scripts. Delivered tests, mocks, deployment, upgrade, and verification scripts using Hardhat, Foundry, StarkNet tooling, and Locklift.
Lead Smart Contract Engineer
Swarm Markets
Blockchain Development
Solidity
Frontend Development
Backend Development
Lead smart contract architecture for Swarm Markets’ regulated RWA platform, covering tokenized equities, U.S. Treasury products, ETFs, gold-backed assets, OTC settlement, staking, rewards, and vault infrastructure.
Shipped dOTC v2, a production OTC settlement protocol with atomic escrow swaps, Chainlink price feeds, and KYC/AML-gated execution. Architected CCIP-based synchronization for RWA metadata, approvals, and compliance state across chains.
Built Nifty Bundles, an ERC-721/ERC-1155-to-ERC-20 vault system for bundled NFT exposure and fractional ownership. Maintain deployments, configuration, and upgrade flows across ten mainnets.
Set smart-contract engineering standards for testing, security review, audit preparation, and technical documentation. Define contract interfaces, event schemas, and failure cases with frontend, backend, and indexer teams.
Shipped dOTC v2, a production OTC settlement protocol with atomic escrow swaps, Chainlink price feeds, and KYC/AML-gated execution. Architected CCIP-based synchronization for RWA metadata, approvals, and compliance state across chains.
Built Nifty Bundles, an ERC-721/ERC-1155-to-ERC-20 vault system for bundled NFT exposure and fractional ownership. Maintain deployments, configuration, and upgrade flows across ten mainnets.
Set smart-contract engineering standards for testing, security review, audit preparation, and technical documentation. Define contract interfaces, event schemas, and failure cases with frontend, backend, and indexer teams.
Smart Contract Auditor & Security Analyst
Hacken
Blockchain Development
Solidity
Audited EVM smart-contract systems across tokens, staking and vesting, DAOs, marketplaces, upgradeable contracts, and DeFi protocols.
Identified vulnerabilities in access control, reward accounting, upgradeability flows, business logic, and oracle and integration patterns. Applied secure-development and gas-efficiency practices using Foundry, Hardhat, Slither, MythX, and OpenZeppelin patterns.
Through HackenProof, triaged and validated incoming vulnerability reports, reproduced issues, and assessed severity and impact for client-facing security workflows.
Identified vulnerabilities in access control, reward accounting, upgradeability flows, business logic, and oracle and integration patterns. Applied secure-development and gas-efficiency practices using Foundry, Hardhat, Slither, MythX, and OpenZeppelin patterns.
Through HackenProof, triaged and validated incoming vulnerability reports, reproduced issues, and assessed severity and impact for client-facing security workflows.
🎓 Education & Certificates
Doctorate Degree, Electrical, Electronics and Communications Engineering
By National Technical University of Ukraine 'Kyiv Polytechnic Institute'
Artificial Intelligence
Machine Learning
Backend Development
PhD in Electrical, Electronics and Communications Engineering.
Ends in 2029.
Master’s Degree, Electrical, Electronics and Communications Engineering
By National Technical University of Ukraine 'Kyiv Polytechnic Institute'
Artificial Intelligence
Machine Learning
Backend Development
Master’s degree in Electrical, Electronics and Communications Engineering.
Bachelor’s Degree, Electronic Engineering
By National Technical University of Ukraine 'Kyiv Polytechnic Institute'
Artificial Intelligence
Machine Learning
Backend Development
Bachelor’s degree in Electronic Engineering.
🏆 Honours & Awards
Startup Winner — Hata
By Vacuum Deep Tech Acceleration
Blockchain Development
Solidity
Frontend Development
Selected as a startup winner in the Vacuum Deep Tech Acceleration program for Hata, a smart-contract platform for real-estate agreements and on-chain payments.
2nd place Hackathon Winner
By Kyiv Tech Summit Hackathon
Blockchain Development
Solidity
Frontend Development
Backend Development
Awarded 2nd place for Buggy DAO at Kyiv Tech Summit.
Bounty Winner
By Kyiv Tech Summit Hackathon
Blockchain Development
Solidity
Awarded an Aragon bounty for the Aragon DAO project at Kyiv Tech Summit.
Awarded an Aragon bounty for the Police Oracle project at Kyiv Tech Summit.
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