mykytaberezhnyi
Blockchain Lead Developer / Solidity Architect
Solidity/EVM engineering lead with 6+ years of experience designing and delivering smart contract systems across DeFi, staking/restaking, NFT, GameFi, DAO/governance, and Web3 infrastructure products.
I have led 10+ blockchain projects as engineer, consultant, auditor, tech lead, and team lead. My strongest areas are protocol architecture, Solidity smart contract design, upgradeable contracts, DeFi mechanics, staking/restaking, vaults, tokenomics, oracle flows, smart contract reviews, technical discovery, estimates, and client-facing solution design.
Recent work includes temporary CTO responsibilities for a DeFi/restaking protocol, architecture ownership for private-market risk and settlement infrastructure, and long-running delivery of GameFi/NFT and fantasy sports dApps.
I am looking for senior/lead Solidity, protocol engineering, blockchain tech lead, or solution architecture roles where I can own technical direction, design on-chain systems, review implementation quality, and work directly with product/client requirements.
I have led 10+ blockchain projects as engineer, consultant, auditor, tech lead, and team lead. My strongest areas are protocol architecture, Solidity smart contract design, upgradeable contracts, DeFi mechanics, staking/restaking, vaults, tokenomics, oracle flows, smart contract reviews, technical discovery, estimates, and client-facing solution design.
Recent work includes temporary CTO responsibilities for a DeFi/restaking protocol, architecture ownership for private-market risk and settlement infrastructure, and long-running delivery of GameFi/NFT and fantasy sports dApps.
I am looking for senior/lead Solidity, protocol engineering, blockchain tech lead, or solution architecture roles where I can own technical direction, design on-chain systems, review implementation quality, and work directly with product/client requirements.
Experience: 6 years
Yearly salary: $150,000
Hourly rate: $70
Nationality: 🇺🇦 Ukraine
Residency: 🇵🇹 Portugal
Experience
Team Lead
Woof 2025 - 2026
Owned end-to-end delivery for Web3 and DeFi clients, from technical discovery and presales to Solidity architecture, implementation review, delivery planning, and launch support. Managed cross-functional teams of 4-6 specialists across blockchain, frontend, backend, QA, and project management. Served as temporary CTO for a DeFi/restaking protocol, defining vault/share-token mechanics, oracle flows, redemption logic, rebalancing, governance roles, and rate-limit architecture. Led architecture for private-market risk, credit, settlement, and on-chain company infrastructure products covering KYC/KYB, wallet AML, deal lifecycle, roles/permissions, treasury flows, staking/escrow, and governance.
Presale Lead
Blaize 2024 - 2025
Owned technical discovery and proposal shaping for blockchain opportunities, translating client requirements into architecture direction, delivery scope, estimates, assumptions, and risk framing. Led 10+ formal presale engagements, from small builds to multi-month six-figure proposals with estimates up to roughly $500k. Built internal automation and LLM workflows for presale kickoff, historical proposal analysis, requirements reuse, and documentation.
Lead Blockchain Engineer
Blaize 2022 - 2024
Led and contributed to 10+ blockchain engagements as developer, consultant, auditor, tech lead, and team lead, focusing on protocol-level Solidity systems, complex on-chain logic, and smart contract architecture. Drove architecture and implementation for Nomo Games / LeagueDAO, a launched fantasy sports dApp on Polygon, covering NFT staking, oracle integrations, matchmaking, and multi-stage competition logic. Led major architecture iterations for 1dollar and designed/implemented GameFi and NFT smart contract systems covering tokenomics, NFT migration, airdrops, breeding mechanics, staking, and marketplace-related logic. Built reusable staking and vesting solutions and performed internal smart contract reviews focused on logic flaws, access control, integrations, upgradeability, and economic assumptions.
Blockchain Engineer
Blaize 2020 - 2022
Built smart contract systems and supported integrations across betting, casino, DAO, and internal blockchain products. Developed and tested ETH betting contracts for SocialBets, built Tron-based casino smart contracts for JustBet, and contributed to early governance contract development for snglsDAO.
Skills
architecture
dao
defi
erc
evm
gaming
hardhat
javascript
nft
openzeppelin
security
smart-contract
solution
tech-lead
tokenomics
typescript
solidity
english
russian
ukrainian