I’m Youness, a Front-End Developer specialized in React with over 5 years of experience. Passionate about the ever-evolving front-end landscape, where new technologies, frameworks, and trends constantly emerge, pushing you to continuously learn, adapt, and challenge yourself.
A deep dive into how I collaborated with a cross-functional team to redesign Leeto’s reimbursement request feature. By integrating AI-driven image recognition, optimizing multi-step forms, and focusing on user-centric solutions, we reduced the rejection rate from 20% to under 5%, while improving workflows and enhancing the overall user experience.
Addressing critical performance issues at Leeto, I collaborated on a comprehensive optimization initiative. The result? Faster load times, smoother interactions, and improved satisfaction for over 30,000 monthly active users.
Redesigned a fragmented email system into a scalable, modular solution using Maizzle and Postmark. Improved email quality.
Enhanced authentication security for Leeto’s financial transactions platform by implementing Multi-Factor Authentication (MFA) with one-time passwords (OTP) and enforcing stronger password policies. Delivered a seamless, user-friendly experience while protecting sensitive data and ensuring system reliability through comprehensive testing.
A personal finance app containing 5 pages (Overview, Transactions, Budgets, Pots, and Recurring Bills)
A chat app allows users to input their queries and receive responses from the AI
A solid foundation in front-end essentials that powers responsive and interactive designs.
Advanced use of React and TypeScript for building scalable, dynamic web applications.
Experience in setting up CI/CD pipelines to streamline deployments and improve code quality.
Creating layouts that adapt seamlessly across devices to enhance user experience.
Optimizing load times and responsiveness through efficient coding and asset management.
Skilled in integrating third-party APIs to extend functionality and improve interactivity.
Product Lead @Leeto
Youness consistently proved to be a key contributor to the success of numerous projects, thanks to his deep understanding of challenges, unwavering motivation, and boundless energy.
Lead Front-End Developer @Leeto
His in-depth expertise in the React ecosystem is an invaluable asset, and his contagious enthusiasm motivates the team.
Back-End Developer @Leeto
Youness consistently delivers high-quality work with a proactive and positive attitude, making him an invaluable asset to any team.
Product Designer @Leeto
He has a brilliant mind that allows him to understand and solve complex problems effectively, always prioritizing the best user experience.
Learn how to implement an accessible and visually pleasing Masonry Layout using absolute positioning. This guide tackles the challenge of keyboard accessibility, dynamic layout adjustments, and height balancing for a seamless user experience.
A fully customizable and accessible headless autocomplete component built with React and TypeScript. Designed to provide dynamic search suggestions, keyboard navigation, and seamless integration, while leaving data fetching and filtering entirely up to the developer.
Discover the challenges and solutions behind implementing a Masonry Layout, from responsive design and aspect ratio categorization to performance optimization using Blurhash placeholders and height balancing. A deep dive into creating visually appealing and efficient layouts for media-rich applications.
Learn how to set up automated Lighthouse performance audits in a React CI/CD pipeline, leveraging Vercel for deployment. This case study explores a flexible and future-proof approach using the Pinsplash project as a practical example.
Ready to bring your ideas to life? Whether it's a small feature or a big project, I’m here to help.
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