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Daniel Freitas

@danielfreitas4

Web developer who built a real-time React collaboration tool for 50+ users and a Medusa e-commerce platform with Stripe payments.

Brazil

Message

At DevTechStudio LLC, I created a faster-loading dashboard and built a real-time React and WebSocket tool that supports over 50 users collaborating without delays. I also added lazy loading, upgraded older applications to a new React framework, and engineered an admin audit log viewer.

At Bits Kingdom, I developed a custom e-commerce platform with Medusa and Stripe payment processing, and built a tool to import WooCommerce data into Medusa without manual catalog corrections. I also launched Astro websites for small businesses and designed a mobile app interface.

Earlier, I built a content management system and an online retail catalog at IT Crowd, and developed student dashboard interfaces and a drag-and-drop study-material upload feature at Studocu. I hold a BSc in Computer Science and certifications in AWS, Docker, and Google Cloud.

Experience

Work history, roles, and key accomplishments

Web Developer

DevTechStudio LLC

May 2023 - Sep 2026 (3 years 4 months)

Created a dashboard that loads much faster than before, improving the overall user experience. Built a real-time tool with React and WebSocket that supports over 50 users collaborating without delays.

React WebSockets Playwright GitHub Actions Lazy Loading Performance Optimization Visual Regression Testing

Frontend Developer

Bits Kingdom

Sep 2021 - Apr 2023 (1 year 7 months)

Launched several Astro websites for small businesses that saw a rise in visitor numbers to 250 monthly. Developed a custom e-commerce platform using Medusa, integrating payment processing with Stripe, which improved the user shopping experience by reducing checkout time.

Astro Medusa Stripe WordPress WooCommerce Mobile App Design Ecommerce

Frontend Engineer

IT Crowd

Jun 2019 - Aug 2021 (2 years 2 months)

Constructed a content management system that simplifies content handling for users without technical backgrounds. Joined forces with backend teams to hook up APIs for a CRM, eliminating the need for manual entries and speeding up data access.

CMS API Integration CRM Testing Automation UI Components

Junior Frontend Developer

Studocu

Aug 2015 - Apr 2019 (3 years 8 months)

Developed the user interface for the student dashboard, allowing students to access materials more easily. Crafted responsive designs using Bootstrap that work correctly on several devices.

Bootstrap Responsive Design UI Development Drag And Drop Bug fixing