Front-End & Full-Stack Developer
I develop modern, fast, and accessible interfaces, focused on performance and impact.
I develop modern, fast, and accessible interfaces, focused on performance and impact.
About me
I’m Daniel Araujo, a front-end and full-stack developer with 7+ years of experience building web applications across industries — from education and real estate to online payments and global brands.
My expertise is turning ideas into intuitive, scalable, and optimized interfaces. I’ve worked on projects that earned international awards and reached millions of users.
💻 Technical Skills
Modern Front-End with React, Next.js, TypeScript and others Back-End & API Integration (Node.js, GraphQL, Strapi) SEO & Performance for speed and ranking Design Systems & UI/UX scalable and consistent
🏃♂️ Hobbies
I really enjoy sports, i'm always at the gym or running. Whenever I can, I travel, whether to a close city or another country (I like taking pictures of different places and people). I have a vegetable garden and some cats 🐱🐱🐱🐱🐱🐱.
Professional Experience
AMP Agency
- Developed a marketing website that won 'Best in Show' at the 2024 Davey Awards, enhancing user engagement through an innovative UI
- Engineered SEO-optimized web apps for Fortune 500 brands using React and Next.js, reducing load times by 35% and boosting cross-device engagement. Collaborated closely with designers and back-end teams to ensure seamless integration with APIs and CMS content
Mage AI
- Developed interactive UI components and data visualization features for an AI-driven data platform using React and GraphQL, which enabled users to efficiently build, train, and deploy predictive models through a no-code interface
- Orchestrated front-end state management and rendering using Redux and efficient component design to improve application load times and user workflow, contributing to a faster model-training experience and higher user satisfaction
PagBank
- Developed new features and UI improvements for Brazil's leading online payments platform, ensuring mobile-responsive design and accessibility best practices for millions of users
- Led critical security audit, uncovering and patching vulnerabilities across high-traffic sites (~1% of national web traffic), safeguarding millions of users and reinforcing customer trust.
Orulo
- Led the transition from a legacy front-end stack to React.js, improving page load times and enhancing user experience on a real estate web platform connecting brokers and developers
- Introduced a component-based architecture and adopted TypeScript, which improved code maintainability and developer productivity. Coordinated with back-end developers on Node.js services to seamlessly integrate new front-end features during the migration, enhancing overall system efficiency
Multiprova
- Collaborated with a small agile team to design the architecture of an online examination platform for educators and students, successfully building end-to-end features using React (front end) and Node.js/Express (back end), which enhanced user experience and streamlined examination processes
- Ensured the platform's scalability and reliability by implementing a modular code structure and conducting thorough testing with Jest/Enzyme, leading to a successful launch across multiple educational institutions and improved platform performance