Hi, I’m Jiahan Chen—a bilingual Full Stack Developer based in Barcelona. I design and build e-commerce platforms, restaurant ordering systems, and custom business websites using WordPress, Shopify, React, and Vue.js, with a strong UI/UX sensibility from my studies in Digital Design and Computer Engineering.
I collaborate with teams across retail, education, and hospitality to deliver scalable, user-friendly solutions, turning complex requirements into elegant interfaces that perform well on any device.
Skills
Experience Level
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Work Experience
Education
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Industry Experience
- Online ordering system for delivery and takeaway
- Real-time menu synchronization with cloud POS
- Order management dashboard for staff
- Customer loyalty program integration
- Responsive design optimized for mobile ordering
- Integration with delivery platforms
- Automated order confirmation via SMS/Email
Developed a full-featured restaurant website for Youme Sushi Barcelona, complete with online ordering and integrated cloud-based point-of-sale system.
Key Features:
Tech Stack: WordPress, WooCommerce, REST API, Cloud POS System, MySQL, JavaScript
Result: Streamlined restaurant operations by connecting the website directly to the POS system, reducing order errors and improving efficiency.
Website Link: https://www.twine.net/signin
- Course catalog with detailed program information
- Online enrollment/inquiry forms
- Student portal integration
- Events calendar and news section
- Faculty profiles and testimonials
- Multi-language support (Spanish/English/Chinese)
- Resource download center for students
Designed and built a professional website for Metis Education, an educational institution in Barcelona offering academic programs and courses.
Key Features:
Tech Stack: WordPress, Custom Post Types, Contact Form 7, WPML, PHP
Result: Created a comprehensive digital platform that streamlines student inquiries and provides easy access to educational resources.
Website Link: https://www.twine.net/signin
- Online food ordering system with real-time menu management
- Delivery and pickup scheduling options
- Integration with cloud POS system
- Digital menu with photos and descriptions
- Table reservation functionality
- Google Maps integration for location
- WhatsApp order notifications
Created a comprehensive digital solution for Oyshi Restaurant in Terrassa, featuring an online ordering system and delivery integration.
Key Features:
Tech Stack: WordPress, WooCommerce, REST API, Cloud POS Integration, MySQL
Result: Enabled the restaurant to accept online orders directly, reducing third-party platform fees and improving customer experience.
Website Link: https://www.twine.net/signin
- Dynamic portfolio showcase with case study layouts
- Smooth scroll animations and micro-interactions
- Team member profiles section
- Service pages with detailed offerings
- Blog/insights section for content marketing
- Multi-language support (English/Spanish)
Developed a sleek, modern portfolio website for Auxo Creative, a Barcelona-based digital creative agency specializing in branding and design.
Key Features:
Tech Stack: WordPress, Custom Theme Development, GSAP Animations, CSS Grid, JavaScript
Result: Delivered a visually impactful website that effectively communicates the agency’s creative capabilities and attracts new clients.
Website Link: https://www.twine.net/signin
- Full WooCommerce integration with secure payment gateways
- Product catalog with advanced filtering and search
- Shopping cart and checkout optimization
- Inventory management system
- Mobile-first responsive design
- Newsletter subscription and email marketing integration
Built a complete e-commerce platform for Lost in Aura, an online fashion and lifestyle brand, enabling seamless shopping experiences for customers.
Key Features:
Tech Stack: WordPress, WooCommerce, PHP, MySQL, Stripe/PayPal Integration
Result: Launched a fully functional online store that processes orders 24/7 with automated inventory tracking and order management.
Website Link: https://www.twine.net/signin
- Custom WordPress theme with responsive design
- Portfolio gallery with smooth animations and filtering
- Online booking system for studio sessions
- Contact form with automated email notifications
- SEO optimization for local search visibility
Designed and developed a modern, visually stunning website for Tutu Studio, a creative photography and videography studio based in Barcelona.
Key Features:
Tech Stack: WordPress, Custom PHP, CSS3 Animations, JavaScript, Elementor Pro
Result: Increased online inquiries by providing a professional digital presence that showcases the studio’s creative work effectively.
Web Link: https://www.twine.net/signin
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