Hi, I'm Donald AHOSSI

Backend Developer

I specialize in building robust, scalable backend systems that power modern applications. With expertise in data synchronization and system integration, I create solutions that drive business success.

DA

About Me

I'm a passionate backend developer specializing in data synchronization and system integration, building robust solutions that power modern applications.

My Story

My journey into backend development began during my IT and Telecommunications Engineering studies at UCAO-UUC, where I discovered my passion for building robust systems and infrastructure that power modern applications.

I specialize in backend technologies including PHP, Python, Node.js, and database systems, with a focus on creating efficient, maintainable, and scalable solutions. I enjoy tackling complex data synchronization challenges and ensuring system reliability.

Currently working at HIGHFIVE UNIVERSITY, I develop data synchronization features across multiple databases and collaborate with teams to deliver high-quality software solutions. When I'm not coding, you'll find me exploring new technologies and continuously expanding my skills through certifications and learning.

Journey Highlights

Software Developer

2022 - PRESENT

HIGHFIVE UNIVERSITY

Developed data synchronization features using PHP and Python for multiple databases based on project-specific needs. Collaborated with the team to ensure the quality and reliability of the implemented features.

Bachelor in Telecommunications and Computer Engineering

JUL 2020

UCAO-UUC

Graduated with a Bachelor's degree in Telecommunications and Computer Engineering, focusing on software development and telecommunications systems.

Certifications & Learning

ProDev Backend

2025

ALX Africa

Advanced backend development program focusing on scalable architecture, system monitoring, and API optimization techniques.

Software Developer Certification

2025

HIGHFIVE UNIVERSITY

Internal certification program covering full-stack development, database design, and enterprise software architecture.

Professional Foundations

2025

ALX Africa

Leadership program focused on building ethical and impactful professionals equipped to tackle complex business challenges.

AI Career Essentials

2024

ALX Africa

Certification in AI-augmented professional development skills for the digital workplace and emerging technologies.

Skills & Technologies

A comprehensive toolkit built through years of hands-on experience and continuous learning in backend development.

Backend Technologies

Node.js
Express.js
NestJS
Python
PHP
TypeScript
JavaScript
REST APIs
GraphQL

Databases

MongoDB
PostgreSQL
MySQL
SQLite
Database Design

Cloud & DevOps

Docker
CI/CD
Linux
Nginx
Monitoring
Deployment

Development Tools

Git
VS Code
Postman
Jest
ESLint
Prettier
Webpack
Vite

Security & Auth

JWT
OAuth2
Passport.js
bcrypt
HTTPS
CORS
Rate Limiting
2FA

Architecture & Patterns

Microservices
MVC
Clean Architecture
SOLID
Design Patterns
Event-Driven
Message Queues

Always Learning

I'm constantly exploring new technologies and staying up-to-date with the latest trends in backend development, cloud computing, and software architecture.

Solidity
Serverless
Event Sourcing
CQRS
Apache Kafka
RabbitMQ
Terraform
Prometheus
Grafana

Featured Projects

A showcase of backend systems I've built, from APIs and microservices to real-time applications and data processing systems.

Social Media API

Featured
A comprehensive social media backend API showcasing advanced development skills: GraphQL implementation for flexible data querying, asynchronous task processing with Celery, scalable system design with microservices architecture, robust data persistence with PostgreSQL, and Redis for caching and performance optimization.
Python
Django
GraphQL
PostgreSQL
Redis
Celery
CodeDemo

Travel App

Featured
A feature-rich travel application built with Django: RESTful API with comprehensive Swagger documentation, containerized with Docker for easy deployment, background task processing with Celery and RabbitMQ, relational database design with MySQL, and user authentication and authorization system.
Python
Django
MySQL
Docker
RabbitMQ
REST API
CodeDemo

God's Hand - NGO Showcase Website

A modern showcase website for the NGO 'God's Hand': fully responsive with dark/light mode support, smooth animations and reusable UI components, multilingual support (French/English) with dynamic switching, backend API for managing site content, includes mission presentation, gallery, testimonials, and blog, social media integration with floating action buttons.
React
TypeScript
Tailwind CSS
Node.js
REST API
CodeDemo

Authify API - Secure Authentication Service

A robust REST API for authentication and user management: full JWT authentication with signup, login, and profile management, refresh token support for enhanced security, password management with secure hashing, clean architecture (controllers, services, models), centralized error handling with consistent responses, comprehensive logging system (Winston and Morgan).
Node.js
Express
MongoDB
JWT
Mongoose
CodeDemo

Mini Weather API - PHP MVC Project

A lightweight weather API built with PHP: get current weather data for any city, multi-day forecast functionality, clean MVC architecture for maintainability, response caching to reduce external API calls, easy deployment on various hosting platforms.
PHP
MVC Architecture
cURL
Caching
CodeDemo

URL Shortener - Node.js Project

A simple but effective URL shortening service: generates short links for long URLs, RESTful API design principles, expandable to use persistent databases, clean and minimal codebase, optimized for performance.
Node.js
Express
JavaScript
CodeDemo
View More on GitHub

Get In Touch

I'm always open to discussing new opportunities, interesting projects, or just having a chat about backend development.

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Contact Information

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