Solidity Developer
Full Stack & Web3 Developer
Sinke has been a highly experienced blockchain and back-end developer for 6+ years. He is passionate about learning and exploring new technologies, especially in the blockchain space. Sinke has expertise in Hyperledger Fabric and EVM-compatible blockchains. He is also comfortable working with the Ethereum virtual machine (EVM) networking stack, including core protocol details, node codebases, Solidity, and smart contract development. Furthermore, he is proficient in working as a full-stack developer and has hands-on experience in various technologies and frameworks like React, Next.js, and Angular on the client side and Node.js/Express, PHP/Laravel, and Golang on the back end.
Nature NFTs Marketplace
https://nature-nfts-marketplace-polygon.vercel.app/
The Nature NFT Marketplace is an NFT factory deployed on the Polygon Mainnet blockchain. It allows users to create their own NFT from a digital image, list it for sale on the marketplace, and actively trade all users' NFT listings. It was built with an Ethereum smart contract that adds the previously mentioned functionality. I have deployed the app to the Polygon and Arbitrum blockchains in an effort to lower transaction "gas" fees.
Decentralized Token Exchange
https://mckurz-dex.vercel.app/
The McKurz cryptocurrency exchange dApp was launched on the Ethereum Kovan Test Network in August 2020. It has since been upgraded to the Goerli testnet as a result of the Ethereum Merge and the deprecation of the Kovan chain. The exchange allows users to list buy and sell orders of different cryptocurrencies. The app is an older production and works best with unlocking Metamask with your password, refreshing the browser after connection, and a possible manual connection to the Metamask Goerli wallet (update shortly).
Safe Harbour Finance Reward Coin Staking App Deployed to zkSync
https://safeharbour-finance.vercel.app/
The Safe Harbour Finance app allows users to stake native SAFE tokens and acquire rewards of the platform's native SAFE token. The app's uniqueness is that it is deployed to the zkSync testnet 2.0, where costs of staking, transfer, lending, or borrowing are quite inexpensive and secure. To use the app, you will need to add the 'zkSync alpha testnet' to Metamask. Directions for this process can be found at:
https://v2-docs.zksync.io/dev/troubleshooting/important-links.html#testnet-network-info.
Demonstrations of the app are available.
https://v2-docs.zksync.io/dev/troubleshooting/important-links.html#testnet-network-info.
Demonstrations of the app are available.
Experience: 6 years
Yearly salary: $80,000
Hourly rate: $30
Nationality: 🇺🇸 United States
Residency: 🇺🇸 United States
Experience
Blockchain & Web3 Developer
Superlayer 2021 - 2024
Worked as the lead blockchain developer for Superlayer. Designed, developed, and deployed ERC721 and ERC-1155 Solidity smart contracts for the Ethereum and EVM-compatible blockchains. Developed an Ethereum NFT marketplace for listing Bitcoin ordinal inscriptions with full function to create, mint, and list EVM NFTs representing inscribed Bitcoin ordinals, BRC-20 tokens, and name inscriptions. Collaborated with cross-functional teams to integrate new features and enhancements into existing products, ensuring compatibility and scalability across multiple blockchain networks. Designed and developed a REST API for storing Bitcoin inscription off-chain data such as collection value, curation, real-time pricing of listed NFTs in terms of ETH/USD, etc. The API utilized MongoDB for storage. Participated in community engagement activities to promote cross chain liquidity solutions and gather feedback from the broader blockchain community.
Blockchain Developer
loanDepot 2020 - 2021
Built and deployed a 'blockchain bridge' that connects different blockchains and enables cross-chain integrations. Developed and deployed complex smart contracts and decentralized applications (dApps) on Ethereum, Binance Smart Chain, and other blockchain platforms. Collaborated with team members to make an Ethereum wallet that removed and added specific functionalities to the basic Metamask web3 wallet. Added permissions to the web3 wallet where it can be used by team members who do not possess administrative rights and permissions to the firm's treasury wallet(s). Contributed to the development of cross-chain interoperability projects and explored Layer 2 scaling solutions. Assisted in designing a team workflow that allows for close supervision of trading strategies by platform administrators.
Web3 Developer
Draper Goren Holm 2020 - 2020
Built Ethereum smart contract web apps using development tools such as Truffle and Hardhat, with React and Next.js as front ends. Spearheaded projects involving blockchain architecture and design, focusing on Web3 and decentralized networks. Demonstrated expertise in various technologies, including Go, Cosmos, Ethereum, MetaMask, and Web3.js. Developed back-end and front-end solutions for clients that required KYC and AML expertise. Integrated Chainlink Price Feeds into multiple ICOs to provide full conversion in USD for every major supported cryptocurrency. This ensured strict USD limits that were compliant with KYC and AML rules.
Web Developer
analytica 2018 - 2020
Developed a React web app that graphs user data and generates relationship and network graphs based on data analytics from a MySQL database. Designed and implemented user interface components using modern front-end frameworks and libraries. Developed 5 web applications by collaborating with senior engineers, enhancing software development processes. Engaged in code reviews and collaborated with team members to maintain code quality and adherence to coding standards. Participated in team meetings and brainstorming sessions to discuss project requirements and design solutions.
Skills
agile
angular
aws
backend
blockchain
cosmos
crypto
css
dapp
defi
devops
docker
ethereum
ethereumjs
evm
front-end
git
golang
graphql
hardhat
javascript
jira
mongo
nextjs
nft
openzeppelin
postgres
python
react
redis
rust
smart-contract
solana
solidity
sql
tailwind
truffle
typescript
vue
web3
web3js
zk-evm
english