Yevgen`s official homepage
Yevgen Somochkin
"ΞΣΣΘ"
CTO ESSO.DEV
Building the Future of AI, Automation & Web3 | Full-stack & DevOps Architect | Scalable, Data-driven Web & Mobile Apps
Hamburg, Germany
Yevgen`s official homepage
Yevgen Somochkin
"ΞΣΣΘ"
CTO ESSO.DEV
Building the Future of AI, Automation & Web3 | Full-stack & DevOps Architect | Scalable, Data-driven Web & Mobile Apps
Hamburg, Germany
IPFS
Build decentralized applications, smart contracts, and token-based systems that solve real business problems. We design and develop Web3 solutions — from DeFi protocols and NFT platforms to blockchain-verified data systems and cross-chain integrations. Whether you need to tokenize assets, create trustless verification mechanisms, or integrate blockchain into an existing product, we deliver production-ready Web3 architecture with a security-first approach.
Smart contract development is where code controls money — every function matters, and deployed code is immutable. We treat it with the discipline it demands.
Solidity for EVM chains (Ethereum, Polygon, Arbitrum, Base) — custom ERC-20 tokens with vesting and governance, ERC-721 and ERC-1155 NFT contracts with royalties, DeFi primitives including staking, liquidity pools, and yield vaults, upgradeable proxy patterns, and battle-tested OpenZeppelin implementations. Rust for Solana — Anchor framework for rapid program development, SPL token integration, on-chain state management with PDA accounts, and Metaplex standards for NFT minting.
Every contract goes through static analysis (Slither, Mythril), achieves 100% critical path test coverage with Hardhat or Foundry, and gets manual security review before touching mainnet. Post-deployment monitoring with Tenderly and Forta bots provides ongoing protection.
Web3 user interfaces should feel like Web2. We build frontends with React + ethers.js (or viem), TypeChain for type-safe contract calls, real-time on-chain data via WebSocket providers, and The Graph subgraphs for historical queries. Wallet integration covers MetaMask, WalletConnect, Coinbase Wallet, and embedded wallets (Privy, Dynamic) for non-crypto-native users. Transaction signing UX includes clear confirmations, gas estimation, and ENS name resolution.
Not every project needs to be crypto-native. We add Web3 capabilities to traditional applications: blockchain-verified geolocation for tamper-proof check-ins and reviews, verifiable credentials with EAS (Ethereum Attestation Service) and soulbound tokens for reputation, crypto payment processing (USDC, USDT, Solana Pay), document hashing and timestamping for compliance audit trails, and supply chain provenance tracking.
Designing sustainable token systems requires more than writing a mint function. We build utility and governance tokens with proper economics — vesting schedules, anti-whale protections, multi-sig treasury management, and staking models that align incentives. For NFT platforms: custom marketplaces with listing, bidding, and offers; royalty enforcement via ERC-2981; collection launchpads; and IPFS/Arweave metadata storage.
A capability that bridges AI and Web3 — we build MCP (Model Context Protocol) servers that enable AI agents to interact with on-chain data. Real-time price feeds, portfolio tracking, on-chain analytics via natural language queries, and transaction execution through AI agent commands. Multi-chain support across EVM, Solana, and Cosmos ecosystems.
We choose the right blockchain for your use case: Ethereum for maximum security and composability, Solana for high-throughput and sub-cent fees, Polygon and L2s for EVM compatibility with lower costs. Security practices include pre-deployment automated analysis, economic attack simulation, emergency pause mechanisms, and incident response playbooks. Every contract is verified on block explorers with full source code transparency.
Whether you need a DeFi protocol, an NFT platform, a blockchain verification system, or AI agents interacting with on-chain data — we deliver Web3 solutions that are secure, performant, and built for production.
