Freelance Full-stack engineer with expertise in Next.JS, Python, Django, Nest.JS and DigitalOcean. Right now I am focused on building scalable AI applications.
Experience
Ecomlytix
Freelance Full Stack Developer
- Built the entire application from scratch using Next.js and Nest.js, ensuring a modular, scalable, and maintainable architecture
- Designed and implemented RESTful APIs with Nest.js, integrating PostgreSQL databases for reliable data flow and performance.
- Configured and deployed infrastructure on DigitalOcean Droplets, managing Nginx, SSL (Certbot), and environment setup for production and staging environments.
- Set up CI/CD pipelines using GitHub Actions to automate testing, building, and deployment of both frontend and backend services.
- Implemented secure environment variable management and CORS policies to streamline communication between microservices.
- Designed and optimized database schemas for performance and scalability using PostgreSQL.
- Automated daily scheduler jobs using BullMQ for backend data synchronization and updates.
- Managed Domain, DNS, and HTTPS configuration for seamless frontend–backend integration.
Zenduty
Software Engineer
- Built serializers, viewsets and endpoints in Django and Django REST Framework powering 10+ interactive dashboard features.
- Minimized database hits through query optimization, improving API response times by 75%.
- Developed reusable Ant Design components to display key data for sales and technical teams.
- Created a custom scheduler to run tests sequentially, and parallelly, reducing the overall runtime by 60%.
- Enhanced Zenduty website reliability by developing a comprehensive PyTest and Cypress suite. Used daily by 8+ developers and QA engineers for code validation.
Algo Financials
Python Developer
- Launched an asynchronous API utilizing FastAPI and MongoDB, accelerating data processing speeds by 90% compared to previous synchronous systems, reducing server latency by 30 milliseconds.
- Established seamless connectivity between FastAPI and MongoDB using Pydantic and Beanie.
- Implemented 15 new API endpoints, controller and services for enhanced data querying capabilities.
- Orchestrated the refactoring of order history storage using Redis, accelerating query response times by 75% and enabling faster retrieval of customer purchase information for support teams.
Projects
Featured Reviews
Javeed Yara
SDE - Xurrent
I had the pleasure of working with Osaf, and I can confidently say he exceeded every expectation. He is extremely smart, curious, and consistently punctual...
Steve Rose
JailWatch Pro - Upwork
I hired Osaf for a few small Django site updates, and he ended up improving much more than expected. He proactively fixed layout and content issues, cleaned up templates, and modernized the site overall...
Kenny Joseph
Cryptodashboard - Upwork
Great work from Osaf. He did the project exactly as requested.
Carl Johan Larrson
Mock Service in Supabase - Upwork
No written review provided
Latest Writings
Get In Touch
Interested in working with me? Drop me a mail at osafalisayed@gmail.com or message me on WhatsApp.