All Projects - Karelys Denis
18+ production projects across healthcare, e-commerce, legal, and cultural sectors.
Applauss
AI-Powered Event Recommendation Platform
AI-based event recommendation platform with intent capture, personalization features, and performance dashboards
Category: Enterprise Solutions | Industry: AI & Technology | Year: 2025
Tech: React, Tailwind CSS, Node.js, REST APIs, AI Integration, Data Visualization, UX Research
Role: Applications Lead & Co-founder | Duration: Ongoing
Results: User-facing recommendation interfaces deployed. Performance monitoring dashboards implemented. User testing frameworks established. Cross-team collaboration patterns defined.
High-Traffic Cultural Platform
Scalable cloud platform handling 80K+ concurrent users for Chile's premier cultural venue
Category: Performance & Cloud | Industry: Entertainment & Culture | Year: 2022
Tech: Cloud Platform, Caching Layer, CDN, Database Optimization, Performance Engineering, Technical SEO
Role: Lead Full-Stack Developer & Cloud Engineer | Duration: 3 months
Results: Achieved 99% uptime across 15+ high-demand ticket launches. Improved PageSpeed score from 62 to 95 (+53% improvement). Reduced page load time by 40% (3s → 2s). Scaled to 80,000 concurrent users during major events. 45% increase in mobile conversion rates.
B2B Collaboration Platform
Enterprise collaboration platform for architecture professionals managing 50+ concurrent projects
Category: Enterprise Solutions | Industry: Architecture & Construction | Year: 2021
Tech: REST API, RBAC, Document Management, Multi-tenant Architecture, Data Modeling
Role: Full-Stack Developer | Duration: 2 months
Results: 50+ active projects managed simultaneously. 35% reduction in project communication time. Improved client satisfaction scores. Scalable architecture supporting 200+ users. Zero security incidents since launch.
Security Products E-commerce
Professional e-commerce platform for security bollard manufacturer with comprehensive product catalog
Category: E-commerce & Payments | Industry: Security & Manufacturing | Year: 2020
Tech: E-commerce Platform, Product Catalog, Responsive Design, B2B UX, SEO Optimization
Role: Full-Stack Developer | Duration: 4 weeks
Results: Professional product catalog launched. Enhanced B2B online presence. Mobile-optimized product browsing. Improved client engagement and inquiries.
E-commerce Revenue Optimization
Luxury floral e-commerce platform with 35% revenue increase and 42% mobile conversion rate
Category: E-commerce & Payments | Industry: E-commerce & Retail | Year: 2021
Tech: E-commerce Platform, Payment Integration, SEO Optimization, Image Optimization, Mobile Design
Role: Full-Stack Developer & SEO Specialist | Duration: 5 weeks
Results: 35% increase in online orders within 6 months. Local SEO ranking: #1-3 for target keywords. 50+ 5-star customer reviews. 42% mobile conversion rate. 30% increase in organic traffic.
Multilingual Healthcare Platform
Multilingual healthcare institute platform with accessibility compliance and patient information system
Category: Healthcare & Compliance | Industry: Healthcare & Medical | Year: 2022
Tech: Multilingual CMS, i18n Implementation, Healthcare Compliance, Accessibility Standards, Responsive Design
Role: Full-Stack Developer | Duration: 6 weeks
Results: Full Catalan/Spanish multilingual implementation. 100% GDPR compliance achieved. WCAG accessibility standards met. Improved patient engagement metrics.
International E-commerce
International bakery e-commerce platform with optimized checkout and payment processing
Category: E-commerce & Payments | Industry: E-commerce & Food | Year: 2023
Tech: E-commerce Platform, Payment Gateway, Frontend Development, Mobile Optimization, Performance
Role: Frontend Developer | Duration: 5 weeks
Results: Successfully launched in Chilean market. Optimized checkout flow reducing cart abandonment. Mobile-optimized shopping experience. Reliable payment processing integration.
Event Management & Booking
Sustainability initiative platform with event booking, payments, and community management
Category: Enterprise Solutions | Industry: Non-Profit & Events | Year: 2022
Tech: Event Management, Booking System, Payment Processing, Email Marketing Integration, Multilingual
Role: Full-Stack Developer & Designer | Duration: 6 weeks
Results: 20+ events successfully managed. 300+ community members acquired. 70% mobile traffic handled smoothly. Integrated payment processing. Newsletter subscriber growth of 40%.
Multi-location Healthcare
Multi-location medical aesthetics platform with booking system and location management
Category: Healthcare & Compliance | Industry: Healthcare & Medical | Year: 2022
Tech: Multi-location System, Booking Platform, Healthcare UX, Mobile Design, Location Management
Role: Full-Stack Developer | Duration: 5 weeks
Results: Unified booking system across 2 locations. Improved patient booking experience. Mobile-first responsive design. Streamlined multi-location management.
Corporate Legal Platform
Multilingual corporate website for law firm with service showcase and client portal
Category: Enterprise Solutions | Industry: Legal & Professional Services | Year: 2021
Tech: Corporate Platform, Multilingual CMS, SEO, Professional Design, Lead Generation
Role: Full-Stack Developer | Duration: 3 weeks
Results: Professional multilingual platform launched. Improved search visibility for legal services. Enhanced corporate credibility. Lead generation through contact forms.
Event & Conference Management
Conference management platform with speaker profiles, schedules, and attendee registration
Category: Performance & Cloud | Industry: Events & Conferences | Year: 2022
Tech: Event Platform, Registration System, Schedule Management, Content Management, Responsive Design
Role: Full-Stack Developer | Duration: 5 weeks
Results: Successful multi-day conference management. Streamlined attendee registration. Real-time schedule updates. Speaker profile showcase.
Event Organization Platform
Large-scale event organization platform with registration, information, and attendee management
Category: Enterprise Solutions | Industry: Events & Conferences | Year: 2023
Tech: Event Management, Registration Platform, Enterprise CMS, Multilingual, Information Architecture
Role: Full-Stack Developer | Duration: 6 weeks
Results: Successfully launched major event platform. Streamlined attendee registration. Multi-language support implemented. Professional event coordination.
Architecture Portfolio
Architecture firm portfolio showcase with project galleries and service presentation
Category: Enterprise Solutions | Industry: Architecture & Construction | Year: 2022
Tech: Portfolio Platform, Image Optimization, Gallery System, Responsive Design, Visual Design
Role: Full-Stack Developer | Duration: 5 weeks
Results: Professional portfolio launched. High-quality project showcase. Mobile-responsive gallery system. Improved client engagement.
Creative Agency Portfolio
Creative studio portfolio with project showcase and service presentation
Category: Enterprise Solutions | Industry: Creative & Agency | Year: 2020
Tech: Portfolio Platform, Creative Design, Project Showcase, Visual Optimization, UX Design
Role: Full-Stack Developer | Duration: 4 weeks
Results: Professional creative portfolio. Project showcase implementation. Enhanced studio visibility. Improved client inquiries.
Construction Company Platform
Construction company platform with project portfolio and service presentation
Category: Enterprise Solutions | Industry: Architecture & Construction | Year: 2020
Tech: Corporate Platform, Portfolio System, Lead Generation, Responsive Design, SEO
Role: Full-Stack Developer | Duration: 3 weeks
Results: Professional corporate website. Project portfolio implementation. Lead generation system. Enhanced business credibility.
Creative Services Platform
Creative services platform with portfolio showcase and service presentation
Category: Enterprise Solutions | Industry: Creative & Agency | Year: 2022
Tech: Portfolio Platform, Visual Design, Service Showcase, Creative UX, Responsive Design
Role: Full-Stack Developer | Duration: 4 weeks
Results: Professional portfolio launched. Service showcase implemented. Visual presentation optimized. Enhanced client acquisition.
Landscaping & Gardening Services
Professional landscaping and gardening services platform with portfolio showcase and service catalog
Category: Enterprise Solutions | Industry: Landscaping & Services | Year: 2023
Tech: Service Platform, Portfolio System, SEO Optimization, Responsive Design, Visual Showcase
Role: Full-Stack Developer | Duration: 4 weeks
Results: Professional service platform launched. Portfolio showcase with project galleries. Improved local SEO visibility. Mobile-optimized for on-the-go clients.
Corporate Business Platform
Corporate business platform with service presentation and company information
Category: Enterprise Solutions | Industry: Corporate & Business | Year: 2023
Tech: Corporate Platform, Service Pages, Professional Design, Business UX, SEO
Role: Full-Stack Developer | Duration: 5 weeks
Results: Professional corporate website. Service presentation implemented. Enhanced business presence. Improved client trust.