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.