Hi, I'm Bartosz Osiński. A Blockchain Developer.

- Wallet support: Metamask, WalletConnect, Coinbase Wallet, Fortmatic. (Web3 Modal)
- ERC standards: ERC20, ERC721, ERC1155.
- Singatures (verification): EIP721.
- Payments, Transfers, Auctions, Lazy Minting via Blockchain.
- Web 3 connection (Html, JS, React).
- Supported networks: Polygon, Ethereum, BSC, Avalanche.
- Environments: Hardhat, Truffle, Brownie, Foundry.
- Decentralized storage: IPFS, PINATA.
- NFT Marketplace ecosystem, token's Airdrops. (giveaways)
- DEFI: Token Staking, Token Swaps.
- Openzeppelin Defender ecosystem. (Openzeppelin)
- Layer 2 solutions: ZkSync, Starknet.
- Decentralized Governance.
- NFT: Music NFT, 3D NFT, Renting NFT.
- Oracle support. (Lotteries)
- Upgradeable contracts. (Proxy)

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About memy stats

Information About me

Etheruem environment enjoyer. Developing his programming skills. I make smart contract tutorials on youtube.

Music enjoyer especially rock. Guitarist and psychologist by nature. I love to play video games also if time allows.

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1+

Years of
experience

NFT

ERC721
ERC1155

Tokens

Staked
ERC20

ZKrollups

zksync
starknet

Signatures

EIP712

DAO

Governance

Storages

IPFS
Pinata

Environment

Hardhat
Truffle

Brownie

OpenZeppelin

Defender
Security

Providers

Alchemy
Moralis

Infura

Defi

Staking
Flashloans

Token Swap

Wallets

Metamask
WalletConnect

Fortmatic
Coinbase Wallet

My Skills

solidity

90%

css3

60%

JavaScript

70%

ReactJS

70%

TypeScript

70%

Elixir

40%

My Timeline

2021 - present

Blockchain Developer - SkyGate

Ethereum contracts development. Web3 functionality connection. Product Inventor.

My PortfolioMy Work

Here is some of my work that I've done in various programming languages.

OpenSea Collection

Adamancipator

Solidity Basics

Proxy

NFT drop

NFT drop EIP712

Starknet

Foundry

Stake

Knowledge I recommendMy Blogs

Ethers library

The ethers.js library aims to be a complete and compact library for interacting with the Ethereum Blockchain and its ecosystem.

Solidity documentation

A-Z how to become blockchain expert!

Hardhat environment

One of the newest and the best environments to create smart contracts. You can access direct option to test contracts with JavaScript code.

Solidity development full tutorial

One of the best solidity tutorials for whole 32 hours of fun. Shows everything you need to know to start with adventure in solidity language.

Block The Chain channel

This is the channel about solidity, ethereum, where you can find a lot of answers for questions connected to the topic. I am one of creators of this channel :)

Starknet Layer 2 scalability solution

Newest discovery with possible higher impact than zk sync. Perfect solution for scalability of transactions.

Contact MeContact

Contact me here

If you have any question let me know. If there is anything that you would like to know and I can give you answer don't think twice, contact me!

Location

Poland, Gniezno

Email

kojar1997@gmail.com

Mobile Number

+48697059383

Languages

Polish, English


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