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Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault ContributorAchievement: Pull Sharkx3

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niyoceles/README.md

Hi there, I'm Celestin Niyonsaba 👋

Full-Stack Software Engineer | Software Engineering Manager | Web & Mobile Applications

I am a passionate software engineer with 7+ years of experience designing, building, integrating, deploying, and maintaining scalable web, mobile, and enterprise applications.

I enjoy working across the full product lifecycle, from understanding business requirements and designing technical solutions to building user-focused applications, integrating APIs, improving performance, supporting deployments, and maintaining production systems.

🚀 About Me

  • 🔭 Currently working on web, mobile, and cross-platform collaboration systems
  • 👨‍💻 Experienced in React, TypeScript, Node.js, Flutter, Dart, React Native, and API integrations
  • 🏗️ Strong background in enterprise applications, government platforms, e-learning systems, and digital transformation projects
  • 🧠 Interested in scalable software architecture, clean code, DevOps, cloud deployment, and AI-assisted development
  • 🤝 Experienced in leading engineering teams, coordinating releases, stakeholder communication, and production support
  • 💬 Ask me about full-stack development, mobile applications, web systems, backend integration, and software delivery

🛠️ Tech Stack

Frontend

React TypeScript JavaScript HTML5 CSS3 Tailwind CSS Bootstrap

Backend & APIs

Node.js REST API Appwrite

Mobile Development

Flutter Dart React Native

Databases

PostgreSQL MySQL MongoDB Redis

DevOps & Tools

Docker Kubernetes Jenkins Ansible Terraform Linux Git GitHub

Cloud & Collaboration

AWS Google Cloud Azure Salesforce

💼 What I Do

✅ Full-stack web application development
✅ Mobile application development with Flutter, Dart, and React Native
✅ REST API integration and backend service development
✅ Authentication, authorization, and secure user workflows
✅ Database design, data handling, and performance-aware queries
✅ Cross-platform collaboration features such as messaging, calls, and meetings
✅ Deployment support, troubleshooting, and production maintenance
✅ Team leadership, release coordination, and stakeholder communication

📊 GitHub Stats

Celestin's GitHub Stats

GitHub Streak

Top Languages

🌱 Currently Improving

  • Scalable backend design
  • Cloud and DevOps engineering
  • Kubernetes-based deployments
  • Clean architecture and maintainable code
  • AI-assisted software development
  • High-quality web and mobile product delivery

📫 Connect With Me

Thanks for visiting my profile!

I am always open to collaborating on meaningful software projects, enterprise platforms, mobile apps, and digital transformation solutions.

Pinned Loading

  1. chat-application-react chat-application-react Public

    JavaScript 2

  2. reactjs-redux-material-ui-app reactjs-redux-material-ui-app Public

    This app is a Single-page application using React/Redux and Firebase

    JavaScript 1

  3. chat-application-nodejs chat-application-nodejs Public

    JavaScript

  4. Employee-management-REST-API Employee-management-REST-API Public

    Employee Management REST-API is a simple API for management of employees (which can be made by a manager). Please view the Documentation here:

    JavaScript 1 2

  5. andela/ah-92explorers-frontend andela/ah-92explorers-frontend Public

    JavaScript 3 7

  6. andela/ah-92explorers-backend andela/ah-92explorers-backend Public

    JavaScript 6 6