Full Stack Engineer

Open to full-time

Bio

Ahmed A is a Full Stack Engineer with several years of experience in web and mobile development, specializing in building scalable applications and optimizing backend systems. Ahmed's core stack includes React, React Native, NestJS, Spring Boot, and Express.js, alongside database technologies like MongoDB and PostgreSQL. He builds dynamic web and mobile applications, secure reverse proxies, and intelligent scheduling systems, employing practices such as JWT authentication, rate limiting, and containerization with Docker. At Qupil, Ahmed significantly increased the daily new subscriber count by 2–3x through the development of new premium lesson types. He also led a project at The German University in Cairo that reduced scheduling time from two weeks to five hours using a Genetic Algorithm, impacting 600 students. Ahmed holds a BSc. in Computer Science & Engineering from The German University in Cairo. He is best suited for roles that require innovative full-stack development and the creation of user-centric applications.

Expertise

MongoDBGitPythonReactReact NativeNode.jsJavaTypeScriptDocument DatabaseRelational DatabaseHTMLJavaScriptSQL

Video Intro

Assessments

General Coding and Video Assessment

(85/100)

Implement an LRU Cache AlgorithmHard
Understanding Rate Limiting in APIsMedium
Understanding ReactJS's Virtual DOM EfficiencyMedium

Projects

SpokenHabit

Built a voice-powered habit tracker using React Native, Supabase, and Large Language Models, enabling hands-free habit management.

Reverse Proxy

Engineered a secure Express.js reverse proxy server featuring weighted load balancing, JWT authentication, rate limiting, and dynamic health checks, fully containerized with Docker for easy deployment.

Course Website

Developed an e-learning platform using MongoDB, Express.js, React, and Node.js, featuring course progress tracking and certificate generation.

AICalendar

Implemented an intelligent scheduling system with React, Express.js, and Together.ai, leveraging natural language processing for tutor availability.

Task Manager Application

Created a task management web app using Spring Boot, PostgreSQL with Spring JPA, and Docker, implementing CRUD operations.

Turn-Based City Conquering Game

Designed a strategy game in Java with Java Swing, implementing city management, army recruitment, and conquest mechanics.

Image Denoising Autoencoder

Built a deep learning model with TensorFlow and Keras for image denoising, outperforming BM3D across multiple noise types.

Experience

Fullstack Engineer Intern
QupilApr 2025 — Jun 2025
- Built new premium lesson types for Quran learning, increasing daily new subscriber count by 2–3x.
- Fixed critical bugs blocking payments and user logins, restoring revenue flow.
- Upgraded Stripe API to support Apple Pay & Google Pay with backwards compatibility.
- Shipped voice-recognition feature for speech-based question answering.
NestJSReact NativeMongoDBGit
Software Engineer Intern
The German University in CairoAug 2022 — Oct 2022
- Led a team of 5 to design and implement Python-based scheduling algorithms.
- Reduced defense scheduling from 2 weeks to 5 hours via Genetic Algorithm for 600 students’ theses.
PythonAlgorithms