Daniel Moreno Siahaan
Full-Stack Developer
Salary / Daily rate
Paris, France
Freelance, open to permanent contract
Remote only
Skills
Languages
About me
Intro
Full-stack developer with expertise in React, Node.js, and e-commerce solutions. Built scalable platforms with Shopify APIs, reducing transaction failures and cart abandonment through real-time features. Specialized in modern web development with TypeScript, MongoDB, and cloud deployment for enhanced user engagement.
Work experience
Full Stack Developer Intern
Mandagie Group
Mar 2025 - Aug 2025
6 months
Paris, France
Engineered a fully functional e-commerce platform utilizing React, Node.js, and Shopify APIs, increasing user engagement through a responsive design featuring dynamic product catalogs and real-time cart updates across multiple devices. Developed robust backend APIs with extensive error handling, precise input validation, and secure payment gateway integration, reducing transaction failures, and enhancing overall system reliability. Deployed scalable infrastructure on Railway and Netlify utilizing custom domains such as alexandermandagie.com; implemented cross-domain cart synchronization with real-time inventory validation, improving session consistency and reducing cart abandonment rates.
Video Production Intern
ÉCU - The European Independent Film Festival
Jul 2024 - Aug 2024
2 months
Paris, France
Accomplished an internship of 2 months (July 1st - August 31st) in Video Production
Education
EM Normandie Business School
Master's degree
2025 - 2027
2 years 2 months
EPITA: Ecole d'Ingénieurs en Informatique
Master's degree
2025 - 2027
2 years 2 months
EPITA: Ecole d'Ingénieurs en Informatique
Bachelor of Science - BS
2022 - 2025
3 years 2 months