Angelino is a Senior Front-end Developer with 6+ years of experience building and maintaining responsive websites in multiple sectors. He uses his expertise in JavaScript, React.js, TypeScript, Next.js, API integration, and modern libraries and frameworks to craft exceptional digital experiences and deliver high-performance web applications. Angelino architects scalable and maintainable front-end solutions to solve complex business challenges, while also leading teams, mentoring junior developers, and managing complex projects from inception to completion. He also has a working knowledge of CI/CD pipelines and a keen interest in usability and reusable components.
Driving user acquisition and revenue growth by optimizing the core user journey, focused on A/B testing and iterative improvements to the platform's top-funnel actions including buying, selling, depositing, and withdrawing cryptocurrencies.
Developing and executing A/B tests to identify and implement high-impact UI/UX optimizations.
Contributing to the development and maintenance of a robust GraphQL API for efficient data fetching.
Led the front-end development of a critical warehouse management system for Natoora, a high-end greengrocer operating across multiple countries.
Successfully delivered a new feature enabling efficient online stock movements, reducing manual errors by 30% and increasing warehouse productivity by 20%.
Modernized the tech stack by refactoring and migrating legacy Angular.js components to React, enhancing code maintainability and developer productivity.
Implemented robust unit testing and code documentation, increasing test coverage from 0% to 75% and establishing a foundation for long-term code quality.
Introduced innovative engineering patterns such as React Hooks and Context API to streamline development processes and improve code efficiency, resulting in 25% faster development cycles.
Overcame challenges with legacy code by adopting a phased migration approach and providing thorough training for the team.
Spearheaded the development of Ripio Data, a groundbreaking Blockchain transaction explorer within a lean startup environment, and led a team of one back-end developer alongside the CEO as Product Owner.
Delivered a high-performing and user-centric MVP two weeks ahead of schedule using React.js, Next.js, and Web Vitals optimization to ensure a 20% faster loading time and a 15% improvement in Core Web Vitals scores for mobile users.
Championed a data-driven approach to continuous improvement using Google Analytics and Hotjar to identify areas for performance optimization.
A/B tested various approaches using tools like Optimizely, resulting in significant improvements like enhanced Google rankings for relevant crypto-related searches by 5 positions.
Reduced page load times for transaction details by 3 seconds and improved user engagement on mobile by 10% through optimized UI elements.
ConsumerAffairs is a rapidly growing online marketplace where each month millions of consumers research purchases, connect with brands, transact, write reviews, and stay up to date with important consumer news. Worked in a few different teams for this project, having different goals, leading to an improvement in engineering processes and documentation. Technologies: HTML5 · CSS3 · JavaScript · Front-end Development · SCSS · React.js · Jest · React-testing-library · Django · Jinja · Web Development · Git · Docker · Webpack.
Gamers Club is the largest CS:GO club in the world. The platform has the largest base of active players in Latin America and through it, we connect and foster the scenario with content, training, championships, awards, broadcasts, and announcements. The platform allows users to pay a monthly fee and have access to various features and benefits.
Ripio Coin is one of the biggest crypto-platforms in Latin America. The wallet can be used to buy Bitcoin, Ethereum, and other coins. It is a Bitcoin consumer financial service platform that has simplified the peer-to-peer payment system in a way that is accessible to anyone with a smartphone.