Backend Development Projects in KarachiBackend Development Projects in KarachiMind Melodies is a modern music therapy platform designed to help people reduce anxiety, depression, and daily stress through calming audio experiences. The application is available on both mobile and web platforms, offering users a seamless and relaxing experience anywhere, anytime.
The platform includes personalized therapy music, meditation tracks, sleep sounds, mood-based playlists, and stress-relief audio sessions to support mental wellness and emotional balance. Users can explore soothing content specially curated to improve focus, relaxation, sleep quality, and peace of mind.
The system is built using Laravel with MySQL for a secure and scalable backend infrastructure. Stripe integration is implemented for secure subscription payments on the website, while In-App Purchases are available for mobile users. Firebase Cloud Messaging is integrated for real-time push notifications and user engagement.
Key Features:
• Anxiety, depression, and stress relief music
• Meditation and sleep therapy sounds
• Personalized playlists and favorites
• Cross-platform web and mobile experience
• Secure Stripe payment integration
• In-App Purchase support
• Firebase push notifications
• Modern, fast, and scalable architecture
Mind Melodies combines technology and wellness to create a peaceful digital environment where music becomes a source of healing and relaxation. I have Developed a Restaurant SaaS or POS(Point of Sale) Web Application as a Python Full Stack Django Developer. Built features including product management, invoice generation, and complete sales tracking with monthly and yearly reports. As a Web App Developer, SaaS Developer or POS developer, I created a responsive interface using HTML, CSS, and JavaScript, Bootstrap, TailwindCSS, Python, and Django ensuring smooth operations for daily use. This SaaS system or SaaS Product helps businesses manage orders, track sales, and improve operational efficiency. Built a full-stack HRMS in under 2 weeks as a side project to dive deeper into Python and backend development!
Features so far:
Employee management with role-based access (Admin / HR / Employee)
Leave request workflow with approval/rejection
Attendance tracking — clock in/out, monthly calendar view
Payroll engine — tax brackets, overtime, pro-rated salary, PDF payslip download
Notifications, search, pagination, CSV exports
Dockerized and deployed
Stack: Next.js · TypeScript · Tailwind · FastAPI · PostgreSQL · SQLAlchemy
The backend was a new challenge for me: SQLAlchemy relationships, Alembic migrations, Decimal precision for payroll calculations, streaming PDF responses — all of it was tricky at first, but I’ve learned a lot along the way.
URL: https://lnkd.in/dRg86PtQ
(https://lnkd.in/dRg86PtQ)This is just the beginning! I plan to add many more features. Real-Money Gaming Platform — Backend at Scale
Engineered the complete backend microservices architecture for Pryze, a real-money competitive gaming platform with live leaderboards, real-time gameplay, and multi-provider payment processing.
THE CHALLENGE
Build a backend that handles thousands of concurrent players, real-time match updates, secure payment flows, and live leaderboard scoring — all with near-zero downtime.
WHAT I BUILT
Microservices architecture on Node.js handling 15K+ daily requests
Real-time leaderboard system processing 30K+ score updates daily via RabbitMQ + Redis Pub/Sub
Redis caching + MongoDB query optimization — 45% faster data retrieval (280ms → 154ms)
Payment integrations: EasyPaisa, SimPaisa, PayFast with webhook handling and retry logic
WebSocket-based messaging for 10K+ concurrent users
AWS infrastructure: EC2, S3, X-Ray, CloudWatch
Comprehensive Swagger API docs — cut third-party integration time by 50%
RESULTS
→ 15K+ daily active users supported at 99.9% uptime
→ 45% faster data retrieval after caching optimization
→ 35% increase in daily user engagement
→ 30K+ real-time leaderboard updates processed daily
