Alfredo Barrera

Skills: iOS · Spoken English · Webpack · React.js · Node.js · Amazon S3 · Full-Stack Development · Web Application Development · Mobile Applications · SwiftUI · Programming · Object-Oriented Programming (OOP) · JavaScript · NestJS · Xcode · Python (Programming Language) · Redux.js · Cascading Style Sheets (CSS) · SQL · REST APIs · Programming Languages · Next.js · PostgreSQL · Git · HTML5 · Web Development · HTML · Web Applications

- Developed and integrated AI-based modules into the existing platform to enhance tax-related query resolution. - Designed and optimized web application architecture using React.js, Node.js, and NestJS for scalable and efficient performance. - Implemented Retrieval-Augmented Generation (RAG) functionalities to improve AI-driven responses. - Engineered prompt-based AI solutions and integrated AI APIs such as OpenAI and Anthropic. - Worked on advanced data processing and tax-related workflows to ensure accurate and reliable information retrieval. - Developed responsive and user-friendly interfaces using Shadcn and Tailwind CSS. - Optimized MySQL database queries to enhance performance and scalability. - Collaborated in Agile project teams, ensuring seamless coordination with cross-functional stakeholders.

- Developed the project using SwiftUI with the MVVM architecture for a modern, scalable iOS application. - Implemented Core Data to efficiently manage and persist all Care.Protocols. - Utilized async & await for seamless concurrency when fetching and submitting protocols via native API calls. - Integrated social sign-up/login with Facebook, WhatsApp, and Gmail for a frictionless user experience. - Leveraged blockchain technology using Web3swift, CryptoSwift, and TrustWalletCore to enable secure transactions. - Implemented Firebase push notifications for real-time user engagement. - Integrated deep linking via Urlgeni.us to enhance app navigation. - Enabled BinancePay payments with SOLVE tokens for secure and efficient transactions.

- Developed a responsive front-end using Next.js and Tailwind CSS for a seamless user experience. - Integrated Unisat, Xverse, OKX, Leather, and Magic Eden wallets for secure and convenient transactions. - Enabled inscription of BRC20 and Runes ordinals, streamlining the minting process. - Implemented a collection listing feature to display all inscribed BRC20 and Runes assets. - Developed a Bitcoin transaction fee tracker to provide real-time fee insights.

- Developed the iOS app using Swift and SwiftUI, ensuring a seamless and high-quality user experience across platforms. - Implemented real-time chat to enable instant communication between users. - Applied the MVVM architecture for a structured, maintainable, and scalable codebase. - Integrated Pusher for real-time notifications and Cloudinary for media storage and delivery to optimize performance and user experience.

- Developed a responsive front-end from Figma designs using Next.js, TypeScript, and Tailwind CSS. - Integrated Web3Auth with NextAuth to enable secure Twitter login, ensuring a smooth authentication experience. - Engineered a scalable back-end with Nest.js, leveraging Microsoft Azure for database management and a socket server to support real-time chat functionality. - Enhanced user authentication by implementing idToken validation, improving security and ensuring accurate data fetching.

- Developed new features and optimize existing platforms to enhance performance and scalability. - Worked on end-to-end development, handling both front-end (React) and back-end (Node.js, GraphQL,MongoDB). - Continuously explored and integrated new technologies like Flutter, TypeScript, and Redis to improve project capabilities.

- Developed high-quality financial products, delivering robust, production-ready code using TypeScript, ReactJS, Node.js, and AWS services (Lambdas, EventBridge, DynamoDB). - Contributed across the entire development stack, from frontend UI components to backend APIs and cloud infrastructure. - Worked with cloud infrastructure (Google Cloud, AWS) to ensure high availability and reliability of services. - Implemented and maintained API protocols and best practices, ensuring seamless communication between frontend and backend services.