You will get Scalable Python Backend Development with FastAPI & API Integration
Top Rated
Project details
I offer professional backend development services using Python, focused on building fast, scalable, and secure systems tailored to your application needs.
As an experienced Python backend developer and FastAPI developer, I specialize in creating high-performance APIs, handling business logic, and designing clean backend architectures that power modern web and mobile applications.
Whether you need a REST API, database integration, or a complete backend system, I ensure clean, maintainable code and efficient performance.
What I can help with:
RESTful API development Python using FastAPI
Backend architecture and system design
Database design and integration (SQL/NoSQL)
Authentication & authorization systems
Third-party API integrations
Scalable and secure backend solutions
If you're looking for a reliable Python developer to build or improve your backend, I’m here to deliver high-quality results.
As an experienced Python backend developer and FastAPI developer, I specialize in creating high-performance APIs, handling business logic, and designing clean backend architectures that power modern web and mobile applications.
Whether you need a REST API, database integration, or a complete backend system, I ensure clean, maintainable code and efficient performance.
What I can help with:
RESTful API development Python using FastAPI
Backend architecture and system design
Database design and integration (SQL/NoSQL)
Authentication & authorization systems
Third-party API integrations
Scalable and secure backend solutions
If you're looking for a reliable Python developer to build or improve your backend, I’m here to deliver high-quality results.
Programming Languages
JavaScript, Python, TypeScriptWhat's included
| Service Tiers |
Starter
$150
|
Standard
$350
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 10 days |
Number of Revisions | 2 | 2 | 2 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
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RA
Rahman A.
Jul 27, 2026
Copyright Deposit Preparation
DF
David F.
Jun 16, 2026
Supabase Expert + AI Engineer
Hassan is awesome. Professional, knowledgeable, dynamic, etc. Hassan is a developer that you can trust.
aV
ar V.
Mar 16, 2026
Seeking Playwright expert
He undertook a project that had many difficult parts and he solved them all. Certainly knowledgeable and figures things out.
RA
Rahman A.
Feb 1, 2026
Fullstack Python Deployment
I implore you to contract with Hassan Tahir when you are looking for a very professional developer.
DR
David R.
Jul 31, 2025
24/7 Appointment Booking Bot from Excel/Google Sheets (Python or other)
⭐️⭐️⭐️⭐️⭐️
Hassan is an absolute genius!
I requested a highly complex and robust automation, and he delivered it in record time — far beyond my expectations. Not only did he meet every single requirement, but he also added multiple validators and extra features with ease, without ever complaining and always with a can-do attitude.
His level of commitment, delivery speed, and technical quality is on another level. If you're looking for someone reliable, fast, and solution-oriented, Hassan is the one. I’ll definitely work with him again. A true gem on UpWork!
Hassan is an absolute genius!
I requested a highly complex and robust automation, and he delivered it in record time — far beyond my expectations. Not only did he meet every single requirement, but he also added multiple validators and extra features with ease, without ever complaining and always with a can-do attitude.
His level of commitment, delivery speed, and technical quality is on another level. If you're looking for someone reliable, fast, and solution-oriented, Hassan is the one. I’ll definitely work with him again. A true gem on UpWork!
About Hassan
Python Automation Developer - AI, Web Scraping & Browser Automation
100%
Job Success
Sambrial, Pakistan - 1:41 am local time
The difference is building automation that still works weeks later.
That's where I come in.
I help startups and businesses automate complex online workflows—from browser automation and AI-powered processes to backend systems and data extraction. My focus isn't just getting something to work once; it's building software that's reliable enough to become part of your business.
Over the last few years I've worked on projects involving:
• Browser automation for authenticated business portals
• AI-powered workflow automation
• FastAPI backend development
• Large-scale data extraction pipelines
• Appointment booking automation
• API integrations and business process automation
One of my clients hired me for a six-month Playwright project.
Another trusted me for a 240+ hour AI and backend development engagement.
Here's what clients have said about working with me:
★★★★★ "Hassan is an absolute genius."
★★★★★ "Professional, knowledgeable, dynamic... a developer you can trust."
★★★★★ "He solved many difficult problems and figured them all out."
When automation fails, it's rarely because someone couldn't write Python.
It usually fails because of unreliable workflows, changing websites, poor error handling, or systems that weren't designed for production.
That's why I pay attention to the details that matter:
• Clean, maintainable code
• Reliable browser automation
• Well-designed APIs
• AI workflows that fit into existing systems
• Logging and monitoring
• Long-term maintainability
My core expertise includes:
Python • Browser Automation • Playwright • Selenium • FastAPI • Django • Web Scraping • Data Extraction • AI Automation • OpenAI • LangChain • REST APIs • PostgreSQL • Docker • Redis • Celery • AWS • Supabase
If you're looking for someone who can build reliable automation instead of quick scripts, I'd love to hear about your project.
Steps for completing your project
After purchasing the project, send requirements so Hassan can start the project.
Delivery time starts when Hassan receives requirements from you.
Hassan works on your project following the steps below.
Revisions may occur after the delivery date.
Architecture Planning
Design of backend structure, database schema, and API endpoints.
Development Phase
Building the backend using Python and FastAPI with clean, scalable code.