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LuvNote
Full-Stack Development Portfolio
LIVE IN PRODUCTION • app.luvnotedating.com

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Download Native Apps Interactive Features Professional Summary Feature Demonstrations Most Marketable Skills Technical Architecture Complete Skills Inventory Experience Highlights Key Achievements Technology Stack

Download Native Apps

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Download the open beta for iOS and Android to experience the complete mobile app built with React Native and Expo

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Or visit luvnotedating.com to use the full version.

Interactive Features

Login with the demo credentials above and explore these production features:

Event Discovery with Ticketmaster API

Ticketmaster API Edmtrain API Geolocation Genre Filtering Event Deduplication

Where to find it: Navigate to the "Events" tab in the app

Try These Features:

  1. Browse Local Events: View concerts and shows near your location pulled from Ticketmaster Discovery API
  2. Filter by Genre: Use genre filters to find events matching your music taste (Rock, EDM, Hip-Hop, Pop, etc.)
  3. View Event Details: See venue information, artist lineups, ticket prices, and dates
  4. Mark Attendance: Indicate which events you're planning to attend
  5. Make Harmonies: Connect with other users who are also going to the same event - find potential matches based on shared concert plans
  6. Cross-Source Data: Events are aggregated from both Ticketmaster and Edmtrain APIs with automatic deduplication
Technical Highlight: EventMergeService uses fuzzy matching algorithms to identify duplicate events across multiple APIs. GeocodingService converts your location to coordinates for radius-based searches. Genre filtering uses the custom genre mapping taxonomy that normalizes genres across Spotify, Apple Music, and event platforms.

Collaborative Playlist Generation

Spotify API Apple Music API OAuth 2.0 Playlist Builder Genre Mapping

Where to find it: Profile Settings → "Connect Music" → Then visit "Playlists" tab

Try These Features:

  1. Connect Your Music Service: Link your Spotify or Apple Music account via secure OAuth flow
  2. Sync Your Library: App fetches your top artists, favorite genres, and listening history
  3. Generate Collaborative Playlists: When you match with someone, create a shared playlist based on your mutual music taste
  4. Genre-Based Playlists: Build playlists filtered by specific genres (select multiple genres like "Indie Rock" + "Electronic")
  5. Cross-Platform Support: Works with both Spotify and Apple Music - playlists are created directly in your connected account
  6. View Compatibility: See percentage of shared artists and genres with your matches
Technical Highlight: SpotifyPlaylistBuilderService creates playlists using the Spotify Web API with automatic token refresh. AppleMusicLibraryService handles Apple Music's different authentication flow. Genre mapping service translates between platform-specific genre taxonomies. Handles pagination for users with 1000+ saved artists.

Cross-Platform Payment System

Stripe Apple IAP Google Play Billing Subscription Sync Webhooks

Where to find it: Profile → "Go Premium" or Settings → "Subscription"

Try These Features:

  1. Test on Multiple Platforms:
    • Web: Uses Stripe checkout with credit card payment
    • iOS: Uses Apple In-App Purchase with App Store billing
    • Android: Uses Google Play Billing
  2. Subscription Plans: View Premium and Premium+ tiers with different features
  3. One-Time Purchases: Buy super likes, profile boosts, and other consumables
  4. Real-Time Sync: Purchase on iOS → instantly reflected in web and Android (and vice versa)
  5. Manage Subscriptions: Cancel, upgrade, or downgrade from any platform
  6. Backend Validation: All purchases verified server-side before granting access
Technical Highlight: Webhook controllers handle events from all 4 payment platforms (Stripe, PayPal, Apple, Google). Receipt validation services verify IAP purchases server-side to prevent fraud. UserPurchaseRecord table tracks all transactions with platform-specific metadata. Subscription status synced across all platforms in real-time using background workers. Handles edge cases like subscription grace periods, payment failures, and refunds.

Ambassador Revenue Tracking

Ambassador Codes Revenue Attribution UserPurchaseRecord Analytics Dashboard

Where to find it: Settings → "Ambassador Program" (if enabled for account)

Try These Features:

  1. Generate Ambassador Codes: Create unique referral codes for tracking
  2. Share Codes: Distribute codes to followers/friends for app signups
  3. Track Signups: See how many users signed up with your code
  4. Revenue Attribution: View all purchases made by users who used your code
  5. UserPurchaseRecord Analysis: Access detailed records showing:
    • Purchase amount, date, and platform (iOS/Android/Web)
    • Subscription vs. one-time purchase breakdown
    • Payment processor used (Stripe, Apple, Google)
    • Commission calculations
  6. Performance Metrics: View conversion rates, total revenue generated, and active subscribers
Technical Highlight: AmbassadorCode table links users to referrers. UserPurchaseRecord stores complete purchase history with foreign keys to users and ambassadors. Revenue attribution calculated using SQL queries with Entity Framework. Background workers update metrics daily. Instagram API integration allows ambassadors to track DM conversations and conversions.

Photo Upload & Azure Blob Storage

Azure Blob Storage Managed Identity expo-image-picker CDN Content Moderation

Where to find it: Profile → "Edit Profile" → "Manage Photos"

Try These Features:

  1. Upload Photos: Select up to 6 photos from your device (works on iOS, Android, and Web)
  2. Image Processing: Photos automatically resized and compressed before upload for optimal performance
  3. Drag to Reorder: Use drag-and-drop interface to change photo order (first photo is your profile picture)
  4. Delete Photos: Remove photos with automatic cleanup from Azure Blob Storage
  5. Secure Storage: All photos stored in Azure Blob containers with:
    • User-isolated containers (photos not accessible cross-user)
    • Managed Identity authentication (no connection strings in code)
    • CDN delivery for fast global loading
    • Automatic expiring signed URLs for security
  6. Content Moderation: ContentModerationService scans uploads for inappropriate content
Technical Highlight: Azure.Storage.Blobs SDK uploads directly to blob containers organized by user ID. BlobUrlResolver generates CDN URLs with SAS tokens. expo-image-manipulator compresses images client-side before upload. Photo metadata (order, upload date, dimensions) stored in PostgreSQL PhotosTable with foreign key to Users. Cascading deletes ensure blob cleanup when user deletes account.

Single Codebase, Three Platforms

React Native Expo Platform-Specific Code Responsive Design

How to test: Access the app from different devices or use browser dev tools

Cross-Platform Features to Verify:

  1. Test on iOS: Download from App Store beta or visit on Safari
    • Native iOS navigation and gestures
    • Apple Music integration (iOS only)
    • Apple In-App Purchase flow
    • iOS-specific UI components (ActionSheet, DatePicker)
  2. Test on Android: Download from Google Play beta or visit on Chrome
    • Material Design components
    • Google Play Billing
    • Android-specific navigation patterns
  3. Test on Web: Visit app.luvnotedating.com
    • Responsive design adapts to screen size
    • Stripe payment integration
    • Web-optimized image loading
    • Browser-based notifications
  4. Platform-Specific Code: Same TypeScript codebase with .ios.tsx, .android.tsx, .web.tsx extensions for platform differences
  5. Shared Business Logic: All API calls, state management, and data handling identical across platforms
Technical Highlight: React Native 0.81 + Expo SDK 54 enables code sharing across iOS, Android, and Web. Platform-specific files handle native APIs (Apple Music on iOS, Google Play on Android, Stripe on Web). Metro bundler creates optimized bundles for each platform. Same PostgreSQL backend serves all platforms through unified REST API. Authentication tokens work seamlessly across platforms using expo-secure-store (mobile) and localStorage (web).

AI-Powered Ambassador Pipeline

OpenAI GPT-4o-mini Meta for Developers API Instagram Messaging API Background Workers (IHostedService) Message Queue System Confidence Scoring Auto-Escalation

Note: This is an internal ambassador recruitment system - not visible in the public app interface

Built an enterprise-grade AI automation pipeline that uses OpenAI GPT-4o-mini to intelligently manage Instagram DM conversations for ambassador recruitment. The system analyzes incoming messages, determines intent and confidence, drafts contextual responses, and automatically sends them via Meta's Instagram Messaging API.

Complete AI Pipeline Flow:

  1. Webhook Reception: Instagram Messaging API webhook delivers incoming DMs to InstagramWebhookController in real-time
  2. Message Storage: System stores message in AmbassadorMessages table with thread tracking and conversation history
  3. Conversation Context Loading: OpenAiRouterService loads last 10 messages from thread for context-aware analysis
  4. AI Intent Analysis: GPT-4o-mini analyzes message with 14 intent categories:
    • yes_interested, question_compensation, question_details
    • question_time_commitment, question_payment_timing
    • skeptical, pricing_pushback, contract_legal
    • not_interested, spam, unknown, and more
  5. Confidence Scoring: AI assigns confidence score (0.0-1.0) indicating certainty of intent classification
  6. Response Generation: AI drafts contextual reply using conversation history and 12 predefined message templates
  7. Safety Validation: Multi-layered safety checks:
    • Confidence threshold (minimum 75% for auto-send, configurable)
    • Red flag keyword detection (lawyer, sue, scam, contract, legal, guarantee, lawsuit, etc.)
    • Intent-based escalation (contract_legal, unknown, pricing_pushback auto-escalate to human)
    • Conversation length limits (>10 exchanges trigger human review for personal touch)
    • Tone analysis (hostile/angry messages escalated)
    • Global auto-send killswitch (can disable all automation via config)
  8. Queue Management: Approved messages added to OutboundQueue with priority ranking and scheduled delivery time
  9. Background Processing: AmbassadorWorker (IHostedService) polls queue every 30 seconds (configurable)
  10. Instagram Delivery: Worker sends messages via Meta's Graph API (graph.facebook.com) using Facebook Page access token
  11. Retry Logic: Failed sends retry with exponential backoff (configurable max retries and delay multiplier)
  12. Escalation System: After max retries, system sends formatted HTML email alert to admin with full conversation context
  13. Thread Pause Protection: If admin manually takes over conversation (IsPaused = true), all queued auto-messages cancelled
  14. Performance Tracking: LLM response time, queue processing metrics, and delivery success rates logged
Technical Architecture: OpenAiRouterService integrates with OpenAI Chat Completions API using structured JSON responses (response_format: json_object). System prompt defines 14 intent categories, 12 message templates, auto-send rules, and escalation triggers. Safety validation uses configurable thresholds from AmbassadorOptions. InstagramApiService wraps Meta's Instagram Messaging API with proper OAuth authentication using Page Access Token from Facebook Login flow. AmbassadorWorker implements IHostedService for continuous background processing with graceful shutdown. Outbound queue uses priority ordering (Priority DESC, ScheduledAt ASC) and scheduled delivery. Complete audit trail stored in PostgreSQL with conversation threading, metadata JSON, and performance metrics. Webhook signature validation (X-Hub-Signature-256) ensures message authenticity using HMAC-SHA256. System handles Meta API rate limiting, retries with exponential backoff, and graceful degradation. Email escalation uses SMTP with HTML templates for admin alerts.

Additional Features to Explore

Swipe UI Real-Time Chat Push Notifications Geolocation Dark Mode GDPR

More Production Features:

  1. Swipe Matching: Browse profiles and swipe right to like, left to pass - uses react-native-deck-swiper with 60fps animations
  2. Real-Time Chat: Message your matches with instant delivery and read receipts
  3. Push Notifications: Get notified of new matches and messages (enable in settings)
  4. Location-Based Matching: Set distance preferences to find matches nearby
  5. Profile Customization: Edit bio, preferences, music taste, and event interests
  6. Account Settings: Manage privacy settings, notification preferences, and connected services
  7. GDPR Compliance: Request data export or permanent account deletion from settings
  8. Dark Mode: Toggle between light and dark themes (persists across sessions)

Professional Summary

Full-Stack Software Engineer

Expertise in building production-grade, cross-platform mobile applications and cloud-native backend systems. Proven experience developing a feature-rich dating/social discovery platform integrating modern technologies including React Native, ASP.NET Core 9.0, and Azure Cloud Services.

Specialized in:

  • Cross-platform mobile development (iOS/Android) using React Native and Expo
  • Enterprise backend architecture with .NET Core and PostgreSQL
  • Cloud infrastructure deployment and management on Microsoft Azure
  • Third-party API integration (Stripe, Spotify, Apple Music, Meta Instagram Messaging API, OpenAI GPT-4o-mini)
  • AI-powered automation with OpenAI for intelligent message routing and intent classification
  • Payment systems and subscription management (IAP, Stripe, PayPal)
  • CI/CD pipeline implementation with Docker and GitHub Actions
  • Secure authentication systems using JWT and OAuth 2.0

50+ RESTful API endpoints 200+ database migrations 10+ external APIs including payment processors, music services, and AI capabilities.

Feature Demonstrations

Explore how each technology powers real features in the live application

User Authentication & Security

JWT BCrypt Azure Key Vault OAuth 2.0 ASP.NET Core Identity

Built a secure, enterprise-grade authentication system that handles user registration, login, password reset, and OAuth integrations.

User Experience:

  1. New users register with email/password or connect via Spotify/Apple Music OAuth
  2. Passwords are hashed using BCrypt before storage in PostgreSQL
  3. Upon login, server generates JWT tokens (30-day expiration) for stateless authentication
  4. Tokens are securely stored in expo-secure-store on mobile devices
  5. Password reset uses 6-digit verification codes sent via SMTP
Technical Implementation: JWT bearer authentication middleware validates tokens on every API request. Azure Key Vault stores sensitive secrets (JWT signing keys, API keys). OAuth flows use expo-auth-session for seamless Spotify/Apple Music account linking.

Music Library Integration

Spotify API Apple Music API OAuth 2.0 Background Services PostgreSQL

Created seamless integration with Spotify and Apple Music APIs allowing users to connect their music libraries, sync favorite artists, and build playlists.

User Experience:

  1. Users connect their Spotify or Apple Music account via OAuth
  2. App fetches and displays their top artists, favorite genres, and listening history
  3. Custom genre mapping service normalizes genres across platforms
  4. Playlist builder creates shareable playlists based on mutual music taste
  5. Background services sync library updates automatically
Technical Implementation: Built custom SpotifyClient and AppleMusicClient services with retry logic and rate limiting. Genre mapping service translates platform-specific genres into unified taxonomy. SpotifyLibraryService and AppleMusicLibraryService handle pagination for large libraries (1000+ artists). Data cached in PostgreSQL to reduce API calls.

Multi-Platform Payment Processing

Stripe PayPal Apple IAP Google Play Billing Webhooks

Implemented comprehensive subscription management across 4 payment platforms with webhook validation and real-time subscription status updates.

User Experience:

  1. Users view premium features and subscription plans in-app
  2. Platform automatically selects appropriate payment method (Stripe for web, IAP for mobile)
  3. Secure checkout flow with Stripe.js or native payment sheets
  4. Subscription activates immediately upon successful payment
  5. Webhooks handle subscription renewals, cancellations, and payment failures
  6. Users can manage subscriptions from their account settings
Technical Implementation: Webhook controllers validate signatures from Stripe, PayPal, Apple, and Google Play. Receipt validation services verify IAP purchases server-side. PayPalSubscriptionService manages subscription lifecycles. Background workers process webhook events asynchronously. Handles edge cases like subscription downgrades, refunds, and grace periods.

AI-Powered Ambassador Automation

OpenAI GPT-4o-mini Meta Instagram Messaging API Background Workers (IHostedService) Message Queue Intent Classification Confidence Scoring Webhook Validation

Developed an enterprise-grade AI automation pipeline that intelligently manages Instagram DM conversations for ambassador recruitment. Combines OpenAI GPT-4o-mini for natural language understanding with Meta's Instagram Messaging API for seamless delivery. See the full AI-Powered Ambassador Pipeline section above for complete technical details.

Key Capabilities:

  1. Real-Time Processing: Webhook receives Instagram DMs instantly, validates signature with HMAC-SHA256
  2. Context-Aware Analysis: Loads last 10 messages, uses GPT-4o-mini to analyze intent across 14 categories
  3. Intent Classification: Categorizes as yes_interested, question_compensation, skeptical, contract_legal, etc. with confidence score
  4. Safety-First Auto-Send: Multi-layered validation (75% confidence threshold, red flag keywords, tone analysis)
  5. Template Responses: AI selects from 12 templates, customizes based on conversation context
  6. Queue Processing: AmbassadorWorker polls every 30s, sends via Meta Graph API
  7. Intelligent Escalation: Low confidence, hostile tone, legal questions auto-escalate to human
  8. Retry & Error Handling: Exponential backoff, admin email alerts on permanent failure
Technical Implementation: OpenAiRouterService uses Chat Completions API with structured JSON (response_format: json_object). System prompt defines 14 intents, 12 templates, auto-send rules. InstagramApiService wraps Meta Graph API with Page Access Token. AmbassadorWorker (IHostedService) processes OutboundQueue with priority ordering. Complete audit trail in PostgreSQL (conversation threads, metadata, confidence, LLM response time). Webhook signature validation ensures authenticity. Handles rate limiting, graceful degradation. Email escalation via SMTP. Fully configurable (thresholds, retry limits, poll interval).

Event Discovery & Aggregation

Ticketmaster API Edmtrain API Geolocation Data Aggregation

Built an event discovery system that aggregates concerts and shows from multiple sources, matching users based on shared music interests and event attendance.

User Experience:

  1. Users enable location services to discover nearby concerts
  2. App fetches events from Ticketmaster and Edmtrain based on user's location and music preferences
  3. EventMergeService deduplicates events appearing across multiple sources
  4. Users mark events they're attending or interested in
  5. Matching algorithm connects users planning to attend the same events
Technical Implementation: GeocodingService converts user location to coordinates for radius-based search. Custom EventMergeService uses fuzzy matching to identify duplicate events. Ticketmaster Discovery API provides venue details, artist info, and ticket links. Edmtrain API specializes in electronic music events. Results cached with geo-based invalidation.

Real-Time Messaging & Notifications

Push Notifications Expo Notifications Background Services WebSockets

Implemented a real-time messaging system with instant push notifications, typing indicators, and message delivery status tracking.

User Experience:

  1. Users match with potential dates and start conversations
  2. Messages appear instantly with typing indicators
  3. Push notifications alert users of new messages when app is closed
  4. NotificationDispatcher schedules notifications based on user preferences
  5. Users receive daily/weekly digests of matches and messages
Technical Implementation: Expo Push Notification service manages device tokens and message delivery. NotificationDispatcher (IHostedService) batches notifications for efficiency. Message status tracking (sent/delivered/read) stored in PostgreSQL. Background worker handles notification scheduling and retry logic for failed deliveries.

Swipe Interface & Matching Algorithm

React Native Reanimated Gesture Handler Swiper Component Matching Algorithm

Created an intuitive swipe-based interface with smooth animations and a sophisticated matching algorithm based on music taste, location, and preferences.

User Experience:

  1. Users swipe through potential matches with smooth card animations
  2. Swipe right to like, left to pass
  3. Mutual likes create instant matches with celebration animation
  4. AutoMatchService calculates compatibility scores based on shared artists, genres, and events
  5. Users can undo accidental swipes with premium feature
Technical Implementation: react-native-deck-swiper provides swipe gestures. react-native-reanimated powers 60fps animations. AutoMatchService uses weighted scoring algorithm considering music overlap, location proximity, age preferences, and event attendance. Results pre-calculated and cached for instant loading. Entity Framework optimizes database queries with eager loading.

Profile & Photo Management

Azure Blob Storage Image Processing expo-image-picker CDN

Built a complete profile management system with photo uploads, drag-and-drop reordering, and Azure Blob Storage integration for scalable media hosting.

User Experience:

  1. Users select photos from their device using expo-image-picker
  2. expo-image-manipulator resizes and compresses images before upload
  3. Photos upload to Azure Blob Storage with progress indicators
  4. Drag-and-drop interface lets users reorder photos
  5. BlobUrlResolver generates CDN URLs for fast global image delivery
  6. ContentModerationService flags inappropriate content
Technical Implementation: Azure.Storage.Blobs SDK handles uploads with Managed Identity authentication (no connection strings). Photos organized in blob containers by user ID. BlobUrlResolver generates signed URLs with expiration. react-native-draggable-gridview enables photo reordering. Image metadata (order, dimensions, upload date) stored in PostgreSQL.

GDPR Compliance & Data Privacy

GDPR Service Data Export Account Deletion Privacy Controls

Implemented comprehensive GDPR compliance features including data export, account deletion workflows, and granular privacy controls.

User Experience:

  1. Users can request complete data export from account settings
  2. GdprService compiles all user data (profile, messages, photos, activity) into downloadable archive
  3. Account deletion permanently removes all data across services (database, Azure Blob Storage, third-party APIs)
  4. Privacy controls let users manage data sharing preferences
  5. Clear consent flows for data collection and processing
Technical Implementation: GdprService orchestrates data retrieval across multiple services. Cascading deletes ensure complete data removal from PostgreSQL. Azure Blob Storage cleanup removes all user photos. Third-party API tokens revoked on deletion. Audit logs track all GDPR-related actions. 30-day grace period before permanent deletion.

CI/CD Pipeline & Azure Deployment

GitHub Actions Docker Azure App Service EAS Build

Established automated deployment pipelines for both mobile app and backend API with zero-downtime deployments to Azure.

Development Workflow:

  1. Code pushed to GitHub triggers automated workflows
  2. GitHub Actions runs .NET build and tests for API changes
  3. Docker multi-stage build creates optimized container image
  4. Container deployed to Azure App Service with health checks
  5. Mobile app builds use EAS Build for iOS and Android
  6. Database migrations run automatically on deployment
Technical Implementation: GitHub Actions workflows use Azure login action with service principal. Docker builds use .NET 9.0 SDK for compilation and runtime for deployment. Azure App Service uses deployment slots for zero-downtime updates. EAS Build creates production builds with proper signing certificates. Environment variables managed via Azure App Service configuration.

Most Marketable Skills

Cloud & DevOps

  • Azure Cloud Platform (App Service, Blob Storage, Key Vault, Static Web Apps, Managed Identity)
  • Docker & Containerization (Multi-stage builds, docker-compose)
  • CI/CD Pipelines (GitHub Actions)

Backend Development

  • ASP.NET Core 9.0 (Latest framework)
  • C# & .NET (Enterprise-grade)
  • RESTful API Design (49 controllers)
  • Entity Framework Core 9.0

Frontend/Mobile

  • React Native (Cross-platform iOS/Android)
  • TypeScript (Type-safe JavaScript)
  • React 19 (Latest version)
  • Expo SDK (Mobile platform)

Database

  • PostgreSQL (Relational database)
  • Database Design & Migration (200+ migrations)

Payment Integration

  • Stripe API (Payment processing)
  • In-App Purchases (Apple & Google)
  • PayPal Integration
  • Braintree
  • Webhook Implementation

Technical Architecture Overview

System Architecture

LuvNote uses a modern, cloud-native architecture deployed on Azure with a React Native mobile frontend, ASP.NET Core backend API, and PostgreSQL database. The system is designed for scalability, security, and high availability.

Frontend Layer (Mobile & Web)

  • React Native 0.81 + Expo SDK 54 - Cross-platform mobile app (iOS/Android/Web)
  • TypeScript - Type-safe component development
  • React Context API - Global state management (Theme, Alerts, User session)
  • Expo Router - File-based navigation and deep linking
  • React Native Reanimated - 60fps animations and gestures
  • expo-secure-store - Encrypted JWT token storage

Backend Layer (API Services)

  • ASP.NET Core 9.0 Web API - RESTful API with 49 controllers
  • Clean Architecture - Separation of concerns (Core, API, Infrastructure)
  • Entity Framework Core 9.0 - ORM with repository pattern
  • JWT Bearer Authentication - Stateless authentication middleware
  • Dependency Injection - Service lifetime management
  • Background Services (IHostedService) - AmbassadorWorker (AI message queue processing), NotificationDispatcher (push notification scheduling), SpotifyWhitelistDigest (email automation)
  • Rate Limiting & Response Caching - API performance optimization

Data Layer

  • PostgreSQL 16 - Primary relational database
  • 200+ EF Core Migrations - Version-controlled schema evolution
  • Azure Blob Storage - User photos, avatars, and media files
  • Npgsql Provider - High-performance PostgreSQL driver
  • Memory Cache - In-memory caching for frequently accessed data

Cloud Infrastructure (Azure)

  • Azure App Service - Containerized API hosting with auto-scaling
  • Azure Blob Storage - CDN-enabled media storage
  • Azure Key Vault - Secrets management (JWT keys, API credentials)
  • Azure Managed Identity - Passwordless authentication to Azure resources
  • Azure Static Web Apps - Web app hosting

Third-Party Integrations

  • Payment Processing - Stripe, PayPal, Apple IAP, Google Play (4 providers with webhook validation)
  • Music Services - Spotify API, Apple Music API (OAuth, library sync, playlists)
  • Social Media - Instagram Messaging API (Meta for Developers) for ambassador program with webhook validation
  • Event Discovery - Ticketmaster Discovery API, Edmtrain API
  • AI Services - OpenAI GPT-4o-mini Chat Completions API for automated messaging with intent classification (14 categories), confidence scoring, and template-based response generation
  • Email - SMTP (Office 365) for transactional emails

DevOps & CI/CD

  • GitHub Actions - Automated build, test, and deployment workflows
  • Docker - Multi-stage builds for optimized container images
  • EAS Build - Mobile app builds for iOS and Android with code signing
  • Azure Deployment Slots - Zero-downtime deployments with blue-green strategy
  • Automated Migrations - Database schema updates on deployment

AI Support Portal (Ruby on Rails)

  • Ruby on Rails 8 - Standalone support portal with MVC architecture and ActiveRecord ORM
  • OpenAI GPT-4o-mini Integration - Intelligent question routing via Chat Completions API with structured JSON responses
  • Confidence-Based Routing - AI returns confidence scores (0.0-1.0) to determine response type: fallback (<50%), support page links (50-80%), or deep app links (>80%)
  • Conversation Tracking - Session-based chat history with visitor fingerprinting and message persistence
  • Admin Dashboard - Analytics view showing conversation metrics, message counts, and session details
  • Support Page Matching - AI matches user questions against database of support articles with semantic understanding
System Metrics
  • 49 API Controllers - Comprehensive REST API covering authentication, matching, messaging, payments, events, and admin
  • 200+ Database Migrations - Continuous schema evolution tracking development progress
  • 10+ External APIs - Deep integrations with payment, music, social, and AI services
  • 4 Payment Platforms - Full subscription lifecycle management with webhook handling
  • 3 Platforms - iOS, Android, and Web from single React Native codebase
  • Zero-Downtime Deployments - Production-grade CI/CD pipeline with automated rollbacks

Complete Skills Inventory

Programming Languages

  • C# (.NET 9.0)
  • TypeScript
  • JavaScript (ES6+)
  • SQL
  • Kotlin (Gradle)

Frontend Core

  • React 19.1 & React Native 0.81
  • Expo SDK 54
  • React Navigation
  • React Context API
  • OAuth Authentication
  • Push Notifications

UI/UX

  • React Native Paper
  • Custom Animations
  • Drag & Drop Interfaces
  • Swipe Card UI
  • SVG Graphics

Backend Framework

  • ASP.NET Core 9.0 Web API
  • Swagger/OpenAPI
  • JWT Bearer Auth
  • Rate Limiting
  • CORS Configuration

Architecture Patterns

  • Clean Architecture
  • Repository Pattern
  • Dependency Injection
  • DTOs
  • Background Services

Cloud & Infrastructure

  • Azure App Service
  • Azure Blob Storage
  • Azure Key Vault
  • Azure Managed Identity
  • GitHub Actions CI/CD

Database & Data

  • PostgreSQL 16
  • Entity Framework Core 9.0
  • Database Migrations (200+)
  • Npgsql Provider
  • Data Seeding (Bogus)

Third-Party APIs

  • Spotify API
  • Apple Music API
  • Instagram API (Meta)
  • Ticketmaster API
  • Edmtrain API
  • OpenAI GPT-4o-mini

Security & Auth

  • JWT Token Management
  • BCrypt Password Hashing
  • Azure Key Vault
  • OAuth 2.0 Flows
  • Webhook Validation

Development Tools

  • Metro Bundler
  • EAS (Expo Services)
  • Gradle 8.13
  • Jest Testing
  • TypeScript Type System

Specialized Features

  • Real-time Messaging
  • Push Notifications
  • Geolocation Services
  • Email Services (SMTP)
  • AI-Powered Automation (OpenAI GPT-4o-mini)
  • Intent Classification & Confidence Scoring
  • Webhook Integration & Validation (Meta API)
  • Message Queue & Background Processing
  • GDPR Compliance

Experience Highlights

LuvNote - Full-Stack Developer

  • Architected and deployed a cross-platform mobile application using React Native and Expo, supporting iOS, Android, and web platforms
  • Designed and implemented 49 RESTful API endpoints using ASP.NET Core 9.0 with PostgreSQL, managing 200+ database migrations
  • Integrated Azure Cloud Services including App Service, Blob Storage, Key Vault, and Managed Identity for secure, scalable infrastructure
  • Implemented comprehensive payment processing with Stripe, PayPal, Apple IAP, and Google Play Billing including webhook validation
  • Built OAuth integrations with Spotify and Apple Music APIs for music library synchronization and playlist management
  • Developed AI-powered messaging features using OpenAI GPT-4o-mini for automated conversation handling
  • Created Instagram Messaging API integration for ambassador/influencer program automation
  • Established CI/CD pipelines using GitHub Actions and Docker for automated testing and deployment
  • Implemented JWT-based authentication, BCrypt password hashing, and Azure Key Vault for security
  • Designed background job processing systems for notifications, email digests, and message queue handling
  • Built real-time push notification system using Expo Notifications with scheduled delivery
  • Integrated Ticketmaster and Edmtrain APIs for event discovery with custom data aggregation service
  • Implemented GDPR compliance features including data export and account deletion workflows

Key Achievements

Multi-Platform

Single codebase supporting iOS, Android, and Web

Payment Mastery

4 payment systems with webhook handling

API Expert

10+ third-party APIs successfully integrated

Cloud Infrastructure

Production Azure deployment with proper security

Modern .NET

Using latest .NET 9.0 framework

Database Pro

200+ migrations showing sustained development

AI Integration

OpenAI GPT-4 for practical use cases

Full Stack

Complete app from frontend to cloud backend

Technology Stack

C# Ruby on Rails TypeScript React Native React 19 ASP.NET Core 9.0 PostgreSQL Azure Cloud Docker GitHub Actions Stripe PayPal Spotify API Apple Music OpenAI JWT OAuth 2.0 Entity Framework Expo REST APIs Microservices

Experience the Live Application

See all these technologies in action in a production environment

Visit LuvNote App

Demo Login Credentials

Try the full application with this demo account:

Email: Portfolio@me.com
Password: Password1!
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