osbon mwangori

Backend Developer (Python/Django) | API & Database Optimization

mombasa ,kenya, Kenya

Summary

I am a skilled Backend Developer specializing in Python and Django, with a strong focus on API development, database optimization, and scalable backend solutions. I help businesses build high-performance, secure, and efficient web applications by designing robust architectures and implementing best coding practices.

✅ Django & Django REST Framework – Build scalable, maintainable web applications
✅ API Development & Integration – Secure RESTful APIs, GraphQL, and third-party services
✅ Database Optimization – PostgreSQL, MySQL, SQLite, indexing, and query performance tuning
✅ Authentication & Security – JWT, OAuth, role-based access control (RBAC)
✅ Asynchronous Processing – Celery, Redis, and background task management
✅ Deployment – Docker, AWS, DigitalOcean, CI/CD pipelines

I focus on writing clean, maintainable code that ensures performance and scalability. Whether you need to build a new backend system or optimize an existing one, I’m here to help!

Languages:

English

Favorite Python Packages:

Celery Redis RQ (Redis Queue) Django Channels asyncio pytest unittest coverage django-debug-toolbar

Experience

 

I am a skilled Python and Django backend developer with hands-on experience building and optimizing scalable web applications, APIs, and automation tools. Through my personal projects, I have tackled real-world problems, focusing on performance, security, and maintainability.

Projects I've Built:

✅ Fintech Platform – Integrated Mpesa payments for seamless transactions, community management, and financial tracking.
✅ Marketplace App – Developed a user authentication system, optimized database queries, and built a secure API.
✅ Expired Goods Tracker – Designed a unique expiry date tracking system, ensuring real-time inventory monitoring.
✅ Finance News Scraper – Automated web scraping to update financial news every 2 hours using Python & BeautifulSoup.
✅ Background Removal Tool – Built a JavaScript-based image processing app with Python handling server-side logic.

I specialize in REST API development, database optimization, authentication systems (JWT/OAuth), and background task processing (Celery & Redis). Whether it’s building a new product or improving an existing system, I bring efficiency, scalability, and clean code to every project.

 

Skills

Backend Development, Celery, Django, Django REST Framework, Flask, Git, MySQL, Web Development