hello!

I'm < lahcen assmira />

>_Full Stack Developer

>_ABOUT ME

Full Stack Developer with 2+ years of experience building and deploying production-ready web applications. Specialized in JavaScript ecosystem (Node.js, Express.js, React.js) with expertise in both SQL and NoSQL databases. I design, develop, and deliver complete solutions from API architecture to responsive frontends. Proven ability to ship real products that serve actual users – from newsletter platforms to URL management systems. Autonomous, results-driven, and focused on delivering business value through clean, maintainable code.

_Download CV

Coding with passion,creating with purpose

>_Skills

>_FrontEnd

_HTML_5

_CSS_3

_JS_ES-6-7

_React_JS

_Tailwind_

>_BackEnd

_Express_js

_Node_JS

>_DataBase

_MongoDB

_Mysql_

>_Design

Photoshop

Illustrator

Figma

>_Outils

_Git_

_office_

_Trello_

>_Projects

Clipdrift – Newsletter & Content Distribution Platform

Node.js Express.js MongoDB REST API Email Service

Overview: Full-featured newsletter platform enabling content creators to build, manage, and distribute email campaigns to subscribers. Handles user authentication, subscriber management, campaign scheduling, and analytics tracking.

🎯 Key Features

User registration & JWT-based authentication system
Subscriber database with import/export functionality
Rich text email editor with template management
Automated email scheduling & batch sending
Real-time analytics dashboard (open rates, click-through rates)
RESTful API for third-party integrations

🏗️ Technical Architecture

Backend: Node.js + Express.js RESTful API
Database: MongoDB with Mongoose ODM for flexible schema design
Authentication: JWT tokens + bcrypt password hashing
Email Service: Nodemailer integration with SMTP
Frontend: Responsive SPA with vanilla JavaScript/React

🚀 Technical Challenges & Solutions

Challenge: Sending bulk emails without triggering spam filters
Solution: Implemented batch processing with rate limiting and SPF/DKIM authentication
Challenge: Managing large subscriber lists efficiently
Solution: Database indexing + pagination + MongoDB aggregation pipelines
Challenge: Real-time analytics updates
Solution: Event-driven architecture with webhook tracking

💼 Business Impact

Production-ready platform capable of managing 10,000+ subscribers and sending 50,000+ emails/month. Reduced manual newsletter management time by 80% through automation.

🌐 Live at: clipdrift.com

Urldn – URL Shortening & Link Management System

Node.js Express.js SQL (MySQL) Redis REST API

Overview: High-performance URL shortening service with advanced link management, analytics tracking, and custom domain support. Built to handle thousands of redirects per second with sub-100ms response times.

🎯 Key Features

Instant URL shortening with custom alias support
QR code generation for shortened links
Detailed click analytics (geographic, device, referrer data)
Link expiration & password protection options
User dashboard for managing all links
API endpoints for programmatic link creation

🏗️ Technical Architecture

Backend: Node.js + Express.js with async/await patterns
Database: MySQL for relational data (users, links, analytics)
Caching: Redis for high-performance redirect lookups
Algorithm: Base62 encoding for generating short codes
Security: Rate limiting, input validation, SQL injection prevention

🚀 Technical Challenges & Solutions

Challenge: Achieving sub-100ms redirect performance
Solution: Redis caching layer with automatic cache warming + database connection pooling
Challenge: Preventing hash collisions in URL shortening
Solution: Implemented collision detection with retry mechanism using random seed generation
Challenge: Tracking analytics without slowing redirects
Solution: Asynchronous event logging with background workers

💼 Business Impact

Processed 100,000+ URL shortenings with 99.9% uptime. Average redirect time under 50ms. Used by marketers and businesses for campaign tracking.

🌐 Live at: urldn.com

Fluxdownload – File Download & Stream Management Platform

Node.js Express.js MongoDB AWS S3 Stream Processing

Overview: Enterprise-grade file management platform for organizing, sharing, and streaming large files. Features secure upload/download, bandwidth management, and multi-user access control.

🎯 Key Features

Chunked file upload with resume capability
Secure file sharing with expiring download links
Bandwidth throttling & download speed control
User roles & permissions (admin, uploader, viewer)
Download history & usage analytics
Direct streaming for media files

🏗️ Technical Architecture

Backend: Node.js + Express.js with streaming APIs
Database: MongoDB for metadata & user management
Storage: AWS S3 integration for scalable file storage
File Processing: Node.js streams for efficient memory usage
Security: Signed URLs, JWT auth, file encryption at rest

🚀 Technical Challenges & Solutions

Challenge: Handling large file uploads without memory overflow
Solution: Implemented multipart upload with chunking + Node.js streams to process data incrementally
Challenge: Resume interrupted downloads
Solution: HTTP Range requests support + checksum validation
Challenge: Cost-effective file storage at scale
Solution: AWS S3 lifecycle policies + automatic compression for compatible formats

💼 Business Impact

Managing 1TB+ of files across 5,000+ downloads. Reduced infrastructure costs by 40% through optimized storage. Enabled secure file distribution for remote teams.

🌐 Live at: fluxdownload.com

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