Hello, I'm
Hadj Hadji
Backend Engineer|
Specialized in building robust, scalable backend systems and APIs. 1+ year of experience in distributed systems and cloud architecture.
class Backend Engineer {
constructor() {
this.name = "Hadj Hadji"
this.skills = ["Node.js", "Express", "MongoDB", "Firebase"]
this.experience = +1
}
solveProblems() {
return "Efficiently"
}
}Technical Expertise
Backend Development
- Node.js
- Express.js
- RESTful APIs
Databases
- MongoDB
- Firebase
- MySQL
Cloud & DevOps
- Google Cloud
- Azure
- Serverless
- Docker
System Design
- API Design
- Scalability
- Performance
Version Control
- Git
- GitHub
- Bitbucket
Documentation
- Swagger
- Markdown
About Me
Experiences
Backend Developer
ITSource One - 6 months
I worked on Langaroo, a WhatsApp-like chat application that features real-time translation for text, audio, and video calls, where I developed and maintained the backend functionalities using Google Cloud Functions. I integrated payment processing and subscription management through Stripe, employing Cloud Functions to handle payment intents and manage webhook events seamlessly. Additionally, I utilized Firestore for efficient data storage and retrieval, ensuring high performance and real-time updates for users.
Software Engineer
RMBTech Smart Automation - 6 months
I deployed a local tile server using Node.js to render offline geospatial data, enhancing accessibility and functionality. Additionally, I managed a Windows Server, overseeing virtual machine provisioning and resource allocation to optimize performance. I configured an NTP server to ensure accurate time synchronization across devices, and I successfully fixed a bug in an ElectronJS application, improving its overall stability and user experience.
Software Developer Freelancer
Fiverr - 2 years
I have developed a diverse range of software solutions, including the Masjidna app for managing masjid activities using Java, and the Setram Tramway Controller, also built in Java. Additionally, I created cafeteria management software utilizing Java and JavaFX for a user-friendly interface. My experience extends to web development with an NFT art generation application using Node.js and Express.js. Furthermore, I have designed over 20 chatbots for Telegram and WhatsApp on Fiverr, leveraging Node.js and OpenAI to enhance user engagement.
Education
Bachelor of Science in Computer Science
University of Oran 1 - Ahmed Ben Bella - 2021
Projects
Langaroo.co
Serverless backend for a paid chat app with real-time translation
+100k users on Playstore, +5k users on Appstore
Notaura.com
Saas platform for reading, annotating, highlighting and converting research papers and PDF files
in Beta
Tapeo.pro
AI-powered fitness assistant delivering personalized plans and 24/7 WhatsApp support
🏋🏽🔥💪🏼