About | Muhammad Waqas Majeed

About Me

Backend Developer

I build backend systems with PHP and Laravel. I focus on writing code that's easy to maintain and extend - keeping things organized so adding new features doesn't break existing ones.

Philosophy

“Right tool for the right problem”

I write code that other developers can understand and work with. I keep things simple and organized so the codebase stays manageable as it grows.

Location

Riyadh, Saudi Arabia

Open to work

Currently Exploring

How programs interact at the binary level (ABI)
Compilers and interpreters - how they work internally
Assembly for low-level optimization
CPU-level performance (cache, branching)
Cross-language communication via gRPC and Protocol Buffers

Skills Overview

Expertise

What I Work On

Areas I work in regularly.

Languages

PHP - primary language for backend
Go - CLI tools and microservices
TypeScript - frontend and type-safe APIs

System Architecture

Modular code structure with Laravel events
Multi-tenant systems with data isolation
Organized layered code (Controllers, Services, Repositories)

Backend & APIs

REST APIs with JSON and Protocol Buffers
gRPC services
Webhooks with signature verification
Background jobs and queues

Search Systems

Search with Elasticsearch, Algolia, MeiliSearch
Flexible query builders and filters
AI-powered semantic search

Real-Time

WebSocket broadcasting (Reverb, Pusher)
Server-Sent Events for streaming
Live notifications and chat systems
Real-time maps and location tracking

Payments

International gateways (Stripe, PayPal, Amex)
MENA methods (Mada, KNET, STC Pay, Fawry)
Two-step authorization (hold & capture)
Subscription billing and invoicing

Security

HMAC request signing and JWT auth
Replay attack prevention (nonce, timestamp)
Role-based access with escalation prevention
Idempotency for safe retries

AI Integration

Multi-LLM support (OpenAI, Claude, Gemini)
Streaming responses via SSE
Image generation (DALL-E, Stable Diffusion)
Text-to-speech and voice cloning

DevOps

AWS deployments
Docker containerization
CI/CD pipelines
Nginx and server configuration

Career

Work Experience

Where I've worked and what I did.

Developer

full-time

Al Muhaideb Investment Group

Riyadh, Saudi Arabia

2025 - Present

Building hotel booking systems. Search, payments, multi-tenant APIs.

Built search system that works with multiple backends
Payment processing with proper error handling and retries
APIs that serve JSON or Protocol Buffers based on client needs
Permission system that prevents users from granting more than they have

PHP

Laravel

MySQL

Redis

Elasticsearch

gRPC

Protocol Buffers

Livewire

Tailwind CSS

Next.js

Docker

AWS

Developer

full-time

DT Modern Tech

Hybrid

2022 - 2024

Built backend APIs powering booking platforms, ride scheduling, service reservations, and delivery tracking with live location updates via WebSockets.

Real-time maps tracking and location updates
Booking systems with live availability
WebSocket integrations for instant notifications

PHP

Laravel 8

React

Redux Toolkit

Pusher

MySQL

Developer

freelance

Freelance

Pakistan

2018 - 2022

Diverse client projects spanning legacy system integrations, web applications, and real-time platforms. Worked across PHP, Python, and Node ecosystems.

Integrated third-party services via SOAP and REST APIs
Built web apps with Laravel, CakePHP, Flask, and Node.js
Database design with MySQL, PostgreSQL, and MongoDB
Real-time notifications and chat using Firebase

PHP

CakePHP

Laravel

Python

Flask

Jinja

Node.js

JavaScript

Ajax

Bootstrap

Firebase

MySQL

PostgreSQL

MongoDB

Education

Academic Background

BS Computer Science

Pakistan

2018 - 2022