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I am an independent Full-Stack Developer with proven experience building complete e-commerce applications from concept to deployment. I specialize in creating user-friendly, secure, and scalable online stores using modern technologies like React, Node.js, Python, and Ruby. I am adept at managing all aspects of web development, from backend infrastructure and database design to frontend interface, with a strong focus on UI/UX principles. Throughout my career, I have led major projects as the sole developer, built custom subscription platforms, and architected customer loyalty applications. I enjoy collaborating cross-functionally to solve complex technical challenges and ensure seamless platform operations, continuously aiming to deliver clean, intuitive user experiences.…I am an independent Full-Stack Developer with proven experience building complete e-commerce applications from concept to deployment. I specialize in creating user-friendly, secure, and scalable online stores using modern technologies like React, Node.js, Python, and Ruby. I am adept at managing all aspects of web development, from backend infrastructure and database design to frontend interface, with a strong focus on UI/UX principles. Throughout my career, I have led major projects as the sole developer, built custom subscription platforms, and architected customer loyalty applications. I enjoy collaborating cross-functionally to solve complex technical challenges and ensure seamless platform operations, continuously aiming to deliver clean, intuitive user experiences.

Juan Cortes

Full Stack Developer, Developer, Web Developer, +2

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I am an independent Full-Stack Developer with proven experience building complete e-commerce applications from concept to deployment. I specialize in creating user-friendly, secure, and scalable online stores using modern technologies like React, Node.js, Python, and Ruby. I am adept at managing all aspects of web development, from backend infrastructure and database design to frontend interface, with a strong focus on UI/UX principles. Throughout my career, I have led major projects as the sole developer, built custom subscription platforms, and architected customer loyalty applications. I enjoy collaborating cross-functionally to solve complex technical challenges and ensure seamless platform operations, continuously aiming to deliver clean, intuitive user experiences.…I am an independent Full-Stack Developer with proven experience building complete e-commerce applications from concept to deployment. I specialize in creating user-friendly, secure, and scalable online stores using modern technologies like React, Node.js, Python, and Ruby. I am adept at managing all aspects of web development, from backend infrastructure and database design to frontend interface, with a strong focus on UI/UX principles. Throughout my career, I have led major projects as the sole developer, built custom subscription platforms, and architected customer loyalty applications. I enjoy collaborating cross-functionally to solve complex technical challenges and ensure seamless platform operations, continuously aiming to deliver clean, intuitive user experiences.

Available to hire

I am an independent Full-Stack Developer with proven experience building complete e-commerce applications from concept to deployment. I specialize in creating user-friendly, secure, and scalable online stores using modern technologies like React, Node.js, Python, and Ruby. I am adept at managing all aspects of web development, from backend infrastructure and database design to frontend interface, with a strong focus on UI/UX principles.

Throughout my career, I have led major projects as the sole developer, built custom subscription platforms, and architected customer loyalty applications. I enjoy collaborating cross-functionally to solve complex technical challenges and ensure seamless platform operations, continuously aiming to deliver clean, intuitive user experiences.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Spanish; Castilian

Fluent

German

Beginner

Work Experience

Full-Stack Developer at The Barn

January 1, 2024 - Present

Independently delivered complete e-commerce solutions by leading two major projects as the sole developer, handling the entire development life cycle. Built a custom subscriptions platform from scratch including user authentication, product selection funnels, and backend logic. Architected and developed a customer loyalty application, designing the database schema (PostgreSQL) and building full-stack functionality. Created responsive, mobile-friendly user interfaces with React focusing on clean, intuitive user experiences.

Integration Manager at Zalando

December 31, 2023 - August 11, 2025

Architected and implemented technical solutions for partner brand integration, managing product catalog synchronization, inventory, and order processing APIs. Collaborated with cross-functional teams to streamline and optimize integration workflows, resolving complex technical challenges to ensure seamless platform operations.

Data / Content Management at Zalando

December 31, 2021 - August 11, 2025

Contributed to process enhancements that resulted in a 20% reduction in data-related errors, ensuring higher data quality for business operations.

Developer at Local Loop / Le Wagon

January 1, 2024 - August 11, 2025

Built a web application that allows users to create events and track them in real time using geolocation. Integrated map-based functionality to enhance user engagement and event visibility.