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Client Review
Kon Damianakis
Verified Client
About
Building production-grade systems that scale
I'm Nabil Elhady, a Full Stack Developer with 820+ hours on Upwork and a 100% job success rate. I specialize in building high-performance web applications that handle real-world traffic including a resume platform processing 10K+ daily requests and an event-driven CRM running 8+ months with zero downtime.
Core Stack: TypeScript, React, Next.js, Node.js, PostgreSQL, MongoDB, Redis, AWS, and Docker.
I don't just write code I optimize database queries by 85%, reduce maintenance from 35 hrs/week to 6 hrs/week, and build systems that clients can rely on. Whether it's serverless architectures, AI integrations, or complex API designs, I deliver solutions that work.
Core Stack: TypeScript, React, Next.js, Node.js, PostgreSQL, MongoDB, Redis, AWS, and Docker.
I don't just write code I optimize database queries by 85%, reduce maintenance from 35 hrs/week to 6 hrs/week, and build systems that clients can rely on. Whether it's serverless architectures, AI integrations, or complex API designs, I deliver solutions that work.
2+Years Experience
8Projects Completed
16+Technologies
100%Client Satisfaction
Experiences
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Client Review
mahmoud ismail
Verified Client
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Client Review
sherbini
Verified Client
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Client Review
sabry
Verified Client
Skills
html
css
js
sass
tailwind
react
redux
next.js
Sanity
styled C
expressJS
mongodb
nodeJS
AWS S3
API Gateway
AWS Lambda
TypeScript
PostgreSQL
Redis
Docker
Git
Client Work
Production systems I've built for clients. Due to NDAs, code and demos cannot be shared, but here are the challenges I solved and results I delivered.
In ProductionIn DevelopmentCompleted
NDA Protected
In Production
Resume/CV Platform
High-Traffic Production System
Built a production resume creation platform from scratch including custom PDF generation engine, RESTful APIs, authentication system, and AWS serverless infrastructure.
📊
10K+
Daily Requests
⚡
85%
Query Speed Improvement
📄
40%
Faster PDF Processing
⏱️
29hrs
Weekly Maintenance Saved
Key Contributions
- ▸Optimized database queries from 800ms to 120ms
- ▸Built custom PDF generation with proper encoding
- ▸Implemented compound indexing strategy
Technologies
Node.jsExpressPostgreSQLAWS LambdaAPI GatewayS3Cognito
NDA Protected
In Production
Social Engagement Tracker
Event-Driven CRM System
Built an event-driven CRM that polls social APIs every 2 minutes, processes engagement data with AI classification, and identifies sales opportunities. Running continuously for 8+ months.
🟢
8+
Months Uptime
🔄
2min
Poll Interval
⏰
24/7
Continuous Operation
🛡️
0
Crashes
Key Contributions
- ▸Built event-driven architecture with BullMQ
- ▸Implemented AI classification with OpenAI
- ▸Designed deduplication logic for events
Technologies
Node.jsBullMQRedisMongoDBOpenAI APIWinston
NDA Protected
In Development
AI Exam Platform
Medical/Professional Certification Prep
AI-powered exam platform with 5 study modes, adaptive difficulty, AI question generation, and comprehensive admin system. Built with Supabase Edge Functions and Claude AI.
🔌
29
API Endpoints
📚
5
Study Modes
📝
20+
Exam Types
📁
60+
Files Created
Key Contributions
- ▸Integrated Claude AI for question generation
- ▸Built RBAC authorization system
- ▸Implemented file upload security with MIME validation
Technologies
Node.jsExpressSupabasePostgreSQLClaude AIZodJWT
NDA Protected
Completed
Legacy ERP System Restoration
System Recovery & Docker Optimization
Restored a broken legacy ERP system after server migration. Fixed React calendar issues, rewrote SQL queries for UUID handling, and rebuilt the Docker deployment pipeline.
✅
100%
System Recovered
🔧
6x
UI Bug Fixed
💾
Full
Data Restored
🚀
Live
Deployment Fixed
Key Contributions
- ▸Debugged React Big Calendar CSS issues
- ▸Fixed UUID buffer issues in SQL queries
- ▸Restored admin permissions and orphaned data
Technologies
Node.jsReactMySQLDocker
NDA Protected
Completed
Golf4Community Platform
Full-Stack Web App Revamp
Engineered a complete transformation of a legacy Next.js codebase into a premium, fully responsive platform. Built an advanced Custom CMS, hierarchical RBAC security, Stripe monetization, and real-time WebSocket communications.
📱
100%
Mobile Responsive
🔐
6
User Archetypes (RBAC)
⚡
Real-time
WebSocket Sync
💳
Stripe
Payments & Subs
Key Contributions
- ▸Stripped hardcoded CSS for mobile-first Tailwind design
- ▸Built custom CMS with direct-to-cloud file streaming
- ▸Optimized legacy DB with direct parameterized SQL queries
Technologies
Next.js 16TypeScriptTailwind CSSRedux ToolkitMySQL2StripePusherCloudinary
100%
Job Success
820+
Hours Logged
$2K+
Earned
⭐
Rising Talent
Projects
Case study 1 of 8full stack ecommerce
A responsive e-commerce platform with React, Tailwind CSS, Node.js, Express, and MongoDB. Features include product management, admin dashboard, secure authentication, shopping cart, and order processing, with payment gateway integration and a clean, modern UI.
Blog
Sharing my journey, insights, and lessons learned in web development.
Join me as I explore the ever-evolving world of technology.
React
5 min read
Building Scalable React Applications: Lessons from the Trenches
After building dozens of React apps, I've learned what truly matters for scalability. Here are the architectural patterns that saved my projects.
ReactArchitectureBest Practices
Read Full Article
TypeScript
7 min read
TypeScript: Beyond the Basics - Advanced Patterns That Matter
TypeScript is more than just adding types to JavaScript. Discover advanced patterns that will make your code safer and more maintainable.
TypeScriptAdvancedType Safety
Read Full Article
Next.js
6 min read
Next.js 14: Why Server Components Changed Everything
Server Components aren't just a new feature - they're a fundamental shift in how we think about React applications. Here's what you need to know.
Next.jsServer ComponentsReact
Read Full Article
Best Practices
5 min read
The Art of Writing Clean Code: Practical Tips from Real Projects
Clean code isn't about following rules blindly. It's about writing code that your future self will thank you for.
Clean CodeBest PracticesSoftware Engineering
Read Full Article
Career
8 min read
Full Stack Development in 2025: The Skills That Actually Matter
The full stack landscape keeps evolving. Here's what you should focus on to stay relevant and build amazing products.
Full StackCareer AdviceWeb Development
Read Full Article
Debugging
6 min read
Debugging Like a Pro: Strategies That Save Hours
Debugging is an art and a science. Learn the systematic approach that helps me solve bugs faster and prevent them from happening.
DebuggingBest PracticesDevelopment
Read Full Article