Hi, I'm LUIS, a seasoned Blockchain Developer with over 7 years of experience in developing and deploying decentralized applications (dApps) and smart contracts across multiple blockchain platforms. My expertise includes Ethereum, Solana, Polkadot, and cross-chain interoperability, focusing on DeFi, NFTs, DAOs, and smart contract security.
Throughout my career, I’ve led and implemented innovative blockchain solutions that optimize transaction efficiency, enhance user experience, and expand liquidity. I’ve worked with smart contract technologies like Solidity and Rust (Anchor), and have contributed to the development of staking platforms, decentralized exchanges (DEX), and cross-chain communication tools. In addition, I’ve deployed applications using technologies such as Node.js, Docker, and Kubernetes, and have experience with CI/CD pipelines on AWS and GCP.
In my previous roles, I have mentored blockchain teams, collaborated with cross-functional teams, and ensured the delivery of secure and high-performance blockchain solutions. I'm passionate about blockchain technology and its potential to revolutionize industries, and I’m always excited to take on new challenges and learn cutting-edge technologies.
Experience: 5 years
Yearly salary: $84,000
Hourly rate: $65
Nationality: 🇺🇸 United States
Residency: 🇺🇸 United States
Experience
Blockchain Developer
Web3 Tech 2024 - 2024
Led the design and implementation of Ethereum smart contracts for DeFi applications, increasing transaction efficiency and reducing gas costs by 15%. Engineered a Solana token with integrated staking and governance, streamlining user interactions and expanding liquidity by 360%. Integrated the Ethereum network with Polkadot using cross-chain communication tools, enabling seamless transfer of assets and data across blockchains. Conducted extensive smart contract audits and implemented security measures that reduced vulnerabilities and improved platform stability by 12%. Built and deployed secure, gas-efficient smart contracts for yield farming and staking protocols, improving transaction throughput by 24%. Optimized decentralized exchanges (DEX) by implementing custom fee structures, increasing platform revenue by 180% in a 3-month period. Mentored and guided a team of blockchain developers, ensuring best practices for secure smart contract coding, testing, and deployment. Worked closely with product and design teams to integrate blockchain features into user-facing applications, enhancing user experience and adoption.
Blockchain Developer
Ledger 2022 - 2024
Built and deployed smart contracts on Ethereum and Solana, focusing on DeFi, NFTs, DAOs, and cross-chain interoperability using Solidity, Rust (Anchor). Developed staking platforms with token staking, reward distribution, and vesting logic, utilizing ERC-20 and SPL Token standards for cross-chain DeFi solutions. Integrated Chainlink CCIP, LayerZero, Wormhole, Axelar for cross-chain communication and interoperability, improving user accessibility across ecosystems. Designed backend services with Node.js, Express, Flask, MongoDB/PostgreSQL, and real-time interfaces with Web3.js, Ethers.js, and WalletAdapter integrations. Deployed applications using Docker, Kubernetes, and managed CI/CD pipelines with AWS CodePipeline and GCP CloudBuild. Developed early-stage NFT platforms and DEX integrations using Metaplex, Raydium, Serum and automated liquidity strategies.
Blockchain Developer
Freelancer 2019 - 2021
Developed Ethereum-based dApps and smart contracts for token sales, escrows, and identity systems using Solidity, JavaScript, and Python. Implemented staking and rewards systems for utility tokens with time-based vesting and unstaking mechanisms, improving token economics and user retention. Built frontends with Angular, HTML/CSS, TailwindCSS, and Material UI, and created SDKs for third-party dApp integrations. Integrated IPFS for decentralized storage and Firebase for Web3 user management. Created developer tools for smart contract deployment and testing with Hardhat, Truffle, and Ganache. Architected backend systems with Django, PostgreSQL, MySQL, and caching layers using Redis. Documented technical workflows, wrote comprehensive guides, and contributed to open-source blockchain utilities for Web3 devs.
Blockchain Developer
Blockchain Apps Developer 2017 - 2018
Created a Python script to scrape product details from e-commerce websites using BeautifulSoup and Selenium. Developed a script to automate Excel file formatting and data analysis for small business reporting. Assisted in developing Python-based scripts and applications for small-scale projects, focusing on functionality and clean code. Learned and implemented RESTful API development using Flask/Django to create basic backend services. Built automation scripts for repetitive tasks like file handling, data entry, and web scraping using Python libraries like Pandas, BeautifulSoup, and Selenium. Collaborated with clients to understand requirements and delivered simple, functional Python-based solutions. Gained experience in using Git for version control and working in an Agile-like environment.
Skills
erc-1155
erc-20
erc-4626
ethereum
solidity
web3js
solana