Oscar A.

Highly skilled Senior Developer with extensive experience in both web and mobile application development. Expert in JavaScript, TypeScript, React, React Native, Node.js, Flutter, and REST/GraphQL APIs, with a strong understanding of UI/UX principles, responsive design, and scalable architecture. Proven track record of delivering high-quality, performant, and maintainable applications across platforms, from responsive websites to cross-platform mobile apps. Experienced in working with cloud services, CI/CD pipelines, and agile methodologies, ensuring smooth deployment and continuous improvement. 🚀 Key Skills: 💦 Web Development: React, Angular, Vue.js, Node.js, Express, HTML5, CSS3, SASS/SCSS, Bootstrap, Tailwind CSS, Next.js, Nuxt.js 💦 Mobile Development: React Native, Flutter, Swift, Kotlin, Ionic, Xamarin 💦 Backend & APIs: REST, GraphQL, Firebase, MongoDB, MySQL, PostgreSQL, AWS Lambda, Serverless Architecture 💦 DevOps & Tools: Git/GitHub/GitLab, Docker, Kubernetes, CI/CD pipelines, Jenkins, AWS, Azure, Firebase Hosting 💦 Testing & QA: Jest, Mocha, Cypress, Detox, Unit & Integration Testing, End-to-End Testing 💦 Performance & Optimization: Code Splitting, Lazy Loading, Progressive Web Apps (PWA), App Store Optimization, SEO Basics 💦 Design & User Experience: Responsive Design, UI/UX Best Practices, Figma, Adobe XD, Material Design, Storybook 💦 Microsoft Excel: Advanced Excel, Data Analysis, Pivot Tables, Excel Dashboards, Formulas & Functions, Data Cleaning, Reporting & Automation, Spreadsheet Management, Google Sheets, CSV Data Handling