With extensive expertise in Blockchain and Smart Contract Development, specializing in EVM chains like Ethereum, Polygon, and BSC, as well as XRP and Bitcoin. My skills include creating smart contracts for NFTs, developing NFT minting websites, and managing assets on IPFS, alongside ERC20 token development and non-custodial wallets. In Mobile and Web App Development, I am proficient in Flutter/Dart and React Native, with strong capabilities in backend technologies such as Python and Django, and database management with PostgreSQL. I excel in frontend development using Tailwind CSS and ReactJS, and possess solid DevOps skills, including CI/CD with CircleCI and Docker. Blockchain and Smart Contract Development: - Extensive experience with EVM Chains ( ETH, POLYGON, BSC), XRP Chain, Bitcoin Chain - Expertise in Ethereum, BSC, and Polygon smart contract development - Creation of NFT collections (ERC721, ERC721A, ERC1155) - Development of NFT minting websites (Web3js, Metamask integration) - Image and metadata generation algorithms for NFT artwork - Asset uploads to IPFS and development of NFT staking contracts - ERC20 token development with various features - Cryptocurrency Wallets, Non-Custodial Wallets Mobile and Web App Development Skills: In mobile app development, I have expertise in: - Flutter/Dart - React Native - State management (BLOC , Provider, Redux) - Firebase (including FCM, Auth, Database) - Full Stack Development - iOS and Android Apps - REST APIs - In-app Purchases - React (for frontend web) - Node.js (for backend) - Version Control (GitHub/Bitbucket) - App Store, Play Store - Google/Facebook Ads - Figma/XD (wireframes & components) Backend Development: - Proficient in Python, GoLang, Django - Expertise in PostgreSQL with a focus on query optimization - Skilled in REST architecture, Delayed Jobs, caching, CSV imports, and concurrency handling - Authentication and authorization using Devise, JWT, and Pundit - Integration with external APIs such as Facebook, Stripe, and Twilio Frontend Development: - Proficiency in Tailwind CSS, CSS, SASS, and PostCSS - Strong knowledge of JavaScript, ES6, and Typescript - Familiarity with libraries like Charts.JS, D3, FullCalendar, and Google Maps API - Experience with ReactJS/Redux framework and Next.js DevOps: - Proficient in Git/GitHub and Vagrant - Experience in continuous integration and delivery with CircleCI - Hosting solutions with Heroku and AWS services (S3, R53, CF, B2) - Docker containerization Database Management: - Strong skills in PostgreSQL, MariaDB, and AWS DynamoDB - Familiarity with Redis for caching Collaboration and Methodologies: - Proficient in JIRA, Git, Slack, Agile, and Scrum methodologies - Experience with Docker for containerization Quality Assurance - Expertise in unit testing, Minitest, integration testing, Selenium, VCR - Continuous integration with GitHub Actions and Gitlab