danilych

Blockchain Developer

Greetings, I'm Daniel, a seasoned Full-stack Web3 Developer and On-Chain Security
Researcher. With focused experience in blockchain development, particularly within the
Ethereum ecosystem, I specialize in Solidity and have built a wide array of smart
contracts, including ERC20, ERC1155, ERC1400 and ERC721 tokens, Vesting and IDO
contracts, Airdrop mechanisms, NFT staking solutions, Investment Platforms, Auctions,
and Launchpad functionalities with subscription models.
Among my notable achievements is the development of a smart contract for a
presale/vesting project with an all-time volume exceeding $40 million, as well as a
membership platform for the Tenset Gem Launch platform, which had a TVL of over $4
million at the time. I've also worked with the AAVE protocol, creating contracts that enable
the creation of token pools for users to invest on behalf of others.
In addition to my development work, I have a strong background in security auditing,
having audited projects across various sectors, including tokens, Automated Market
Makers (AMM), and games. Using tools like Slither, Mythril, Echidna, Halmos, Graviton,
Tealer, and Prover(Certora), I’ve ensured the security and robustness of smart contracts.
For testing, I primarily use Hardhat and Foundry.
My expertise extends to Algorand blockchain development, and on the frontend, I've
successfully completed projects using Web3, React, Remix.js, TypeScript, Storybook,
Tailwind CSS, and Ethers.
I’m continuously learning and exploring architectural patterns to further improve my skills. I
also have backend development experience with NestJS and ORMs like Prisma and
Drizzle.
Driven by a passion for understanding the complexities of Ethereum, I look forward to
contributing to new, innovative projects in the blockchain space. You can find a
comprehensive showcase of my work on my GitHub (https://github.com/danilych)


Experience: 3 years

Yearly salary: $60,000

Hourly rate: $25

Nationality: 🇺🇦 Ukraine

Residency: 🇵🇱 Poland


Experience

Full-stack Web3 developer
Cowchain
2024 - 2025
part-time testing, backend developing, architecture creating, creating smart contracts, frontend, web3 developing
Community Manager
Web3 solutions “Tenset”
2022 - 2022
Full-stack Web3 developer/Security Researcher
Tenset
2022 - 2025
Auditing smart contract, testing, backend developing, architecture creating, creating smart contracts, frontend, web3 developing

Skills

architecture
backend
nestjs
node
postgres
scrum
security
smart-contract
solidity
typescript
english
polish
russian
ukrainian