All Projects

A collection of projects that demonstrate my expertise in mobile development, software architecture, and technical leadership.

B2B and Enterprise Projects

Flutter solutions developed for enterprises, featuring scalable architectures and high commercial impact.

Featured Projects

OTT Platform for Hotels

Sector: Streaming & Hospitality
Role: Lead Flutter Developer & Software Architect

Scalable architecture deployed in production with automated CI/CD. Cost reduction through shared code across 6 platforms. Optimized performance with lazy loading, strategic caching, and tree shaking. High availability across multiple environments.

Cross-platform streaming platform with Clean Architecture and BLoC pattern. Dual-entry system for Smart TV (HTML renderer) and Web (CanvasKit) with scalable modular architecture. Custom video player with DRM, multi-audio/subtitles, and adaptive streaming. Local persistence with IndexedDB via JS interop, smart HTTP caching with configurable strategies. 68+ reusable UI components, 17+ BLoCs for state management, REST API integration with JWT interceptors. Typed routing system with 33+ routes. Complete CI/CD with GitHub Actions and Docker for multiple environments.

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+30 Active hotels
6 Platforms
Flutter 3.16Dart 3.0+BLoC PatternClean Architectureauto_routeGetItDioIndexedDB +6
Confidential
🌐 Production
⭐ Featured

Cross-Platform Digital Banking Application

Sector: Digital Banking & FinTech
Role: Full-Stack Flutter Developer

Production banking application with premium user experience across three platforms using a single codebase, reducing development costs by 70%. The automated identity verification process reduces manual validations by 80%, enabling customer onboarding in under 10 minutes.

Comprehensive banking application for iOS, Android, and Web enabling management of personal and shared accounts, bank transfers, instant peer-to-peer payments, and virtual/physical card management. I implemented an advanced identity verification system with AI-powered automatic document capture, facial recognition, and NFC reading of electronic documents. The app features multi-level authentication with biometrics (Face ID/Touch ID/Fingerprint), real-time notification system, and modular architecture that separates business logic from UI for enhanced maintainability and scalability.

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50+ Screens
15+ Services
FlutterGetXFirebaseGraphQLNFCBiometricsGoogle PaySentry
Confidential
⭐ Featured

Enterprise Logistics Management App

Sector: Logistics & Transportation
Role: Senior Mobile Developer

Complete solution that significantly reduced operational management times and improved delivery traceability. Professional architecture with multiple development environments, reusable components, and high-quality code. Active production project with real users managing daily operations.

Enterprise mobile application (iOS/Android) to optimize fleet and delivery operations. Features real-time GPS tracking of vehicles, intelligent route and task management, incident reporting with photos, real-time chat between drivers and headquarters, and offline functionality. The app enables drivers to manage daily deliveries, report issues, and maintain constant communication with the team.

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21 Screens developed
Yes Works offline
FlutterGoogle MapsFirebaseReal-time GPSREST APIs
Confidential
🌐 Production
⭐ Featured

Other Business Projects

Mobile App for Camping Management

Sector: Tourism & Hospitality
Role: Mobile Developer

Digital transformation that fully automated camping operations, eliminating manual paper-based processes and reducing operational costs by 40%. The app improved guest satisfaction by enabling instant reservations and keeping them informed of all available activities.

Complete mobile application for iOS and Android that digitalizes the comprehensive management of a tourist camping site. Users can register, make plot reservations, check the camping activities calendar, receive real-time notifications about events and services, and manage their personal profile. The app allows camping staff to manage daily operations from any mobile device, significantly improving the visitor experience.

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+1,000 Registered users
40% Operational cost reduction
FlutterFirebaseModular ArchitectureAPIsSecure Authentication
Confidential
🌐 Production

Digital Product Catalog

Sector: Construction & Decoration
Role: Full-Stack Flutter Developer

Complete digitalization that eliminated bulky physical catalogs, reducing printing and distribution costs. The multi-tenant architecture supports multiple clients from a single codebase. Performance optimizations with image caching reduce data consumption by 70% on repeated use, significantly improving user experience.

Digital catalog mobile application developed in Flutter that enables interactive exploration and consultation of construction and decoration products. I implemented a scalable multi-tenant architecture with multi-level navigation (series, products, environments, subseries) and advanced filtering system with multiple combinable criteria. The app integrates Parse Server as backend and AWS S3 for asset management, with an intelligent image caching system that optimizes data consumption. I developed 61 Dart files organized in layers (Models, Services, Controllers, Views), including 17 data models, 12 specialized services, and 12 reusable custom widgets. The project stands out for its dynamic server-side configuration that allows UI customization without code modifications, and an intelligent fallback strategy for images.

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61 Dart files
17 Data models
Flutter 2.16DartGetXParse ServerAWS S3cached_network_imagecarousel_sliderMulti-tenant +1
Confidential
🌐 Production

Personal and Open Source Projects

Own developments that showcase creativity, experimentation with new technologies, and passion for innovation.

Personal Portfolio – Chrystian Michell

Sector: Personal Branding
Role: Developer & Designer

SEO optimized for professional positioning with complete ES/EN internationalization.

Modern and responsive personal portfolio developed with Astro for optimized static rendering. Modular architecture with TypeScript, i18n translation system, advanced SEO with structured data, PWA with manifest and service worker. Performance optimization with lazy loading, code splitting, and asset compression. Automated deployment with GitHub Actions.

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100/100 Lighthouse
<1s Load time
AstroTypeScriptCSS ModulesGitHub ActionsNetlifyPWA
🌐 Production
⭐ Featured

Music Festival Management Platform

Sector: Music & Events
Role: Full Stack Developer

Complete production-ready platform that centralizes complex event management, reducing content update time by 70% and eliminating manual errors. Professional and scalable architecture that facilitates managing multiple festival editions.

Professional web system for managing all aspects of music festivals: artist lineup, schedules, stages, editorial content, and locations. The platform allows organizers to centrally manage event programming, update information in real-time, and publish content that automatically syncs with mobile apps and public websites. Features Spotify integration to link artist music, visual content editor, and location management system with interactive maps.

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<1.5s Initial load
70% Update time reduction
AstroSolidJSTypeScriptTailwindCSSSpotify APIMaps Integration
Confidential