You will get Fast API Backend, High-Performance Python API Development
Rising Talent
Project details
Launch Your Backend: High-Performance Python REST APIs Built with FastAPI.
Are you looking for a modern, blazingly fast, and scalable backend solution? Stop building slow services with outdated frameworks. I deliver professional, production-ready REST APIs using FastAPI—the industry's leading Python framework known for its incredible speed, high concurrency, and automatic documentation.
Why choose a FastAPI project?
FastAPI leverages modern Python features and technologies like Starlette and Pydantic, giving you massive advantages. It delivers API performance that is on par with compiled languages like Node.js and Go, making your application highly scalable and efficient. By using Pydantic, your API includes automatic, robust data validation and serialization, drastically reducing development time and eliminating common runtime bugs. This translates directly to a more reliable service and lower operational costs for you.
I focus on delivering a service that ensures your development timeline stays on track and your final product is secure and fast. Choose this fixed-price project for a transparent, efficient way to launch your high-performance Python backend.
Are you looking for a modern, blazingly fast, and scalable backend solution? Stop building slow services with outdated frameworks. I deliver professional, production-ready REST APIs using FastAPI—the industry's leading Python framework known for its incredible speed, high concurrency, and automatic documentation.
Why choose a FastAPI project?
FastAPI leverages modern Python features and technologies like Starlette and Pydantic, giving you massive advantages. It delivers API performance that is on par with compiled languages like Node.js and Go, making your application highly scalable and efficient. By using Pydantic, your API includes automatic, robust data validation and serialization, drastically reducing development time and eliminating common runtime bugs. This translates directly to a more reliable service and lower operational costs for you.
I focus on delivering a service that ensures your development timeline stays on track and your final product is secure and fast. Choose this fixed-price project for a transparent, efficient way to launch your high-performance Python backend.
Programming Languages
PHP, JavaScript, PythonCoding Expertise
Localization, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$250
|
Standard
$400
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Content Upload
(+ 2 Days)
+$250
API Testing Report
(+ 1 Day)
+$250Frequently asked questions
5 reviews
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BM
Bee M.
Jan 31, 2026
Wordpress website update
This is the second job completed. Darryn and his team have been come a reliable team to lean on. Thanks for this completed job
OR
Omer R.
Dec 10, 2025
Create a Shopify Store
Thank you for the communication.
OR
Omer R.
Nov 26, 2025
Coming Soon Landing Page
Astonishing professionalism, and skill. Darryn is a unicorn on Upwork and I would highly recommend him for any work.
BM
Bee M.
Nov 4, 2025
Wordpress website update
Onto a great start. Excellent collaboration with this team. They are responsive to feedback and patient
RB
Robina B.
Sep 27, 2025
Develop 3 APIs method with Python Flask
Darryn was fantastic to work with. He built three API methods in Flask, complete with thorough testing scripts, and delivered exactly what I needed. His communication was excellent, and he was highly responsive to feedback and adjustments. The code was clean, well-documented, and worked flawlessly. I wouldn't hesitate to hire him again for future projects and would highly recommend him to anyone looking for a skilled and reliable developer.
About Darryn
Senior Python React Node Full Stack Developer | CMS Developer | API
100%
Job Success
Thornhill, Canada - 11:27 pm local time
AI & Automation:
I build custom LLM systems using Retrieval-Augmented Generation (RAG), allowing your AI to learn from your own business data for accurate, niche-specific results with zero hallucinations. I deliver intelligent chatbots, automation agents, personalization engines, and data-driven workflows.
Back-End & APIs:
I architect robust APIs using Python, FastAPI, and Node.js, ensuring secure communication between your AI, databases, and front-end systems. This includes:
Secure API design (REST/GraphQL)
SQL, NoSQL & vector database integration
Web scraping pipelines for live, real-time data
Web Development & WordPress:
Beyond AI, I build fast, responsive, and SEO-optimized websites—whether fully hand-coded (HTML/CSS/JS) or built on WordPress with custom themes, Gutenberg blocks, or plugin development. I ensure:
Clean, scalable code
Pixel-perfect UI based on any reference design
Easy content management
Seamless integration of AI tools directly into your website
I don’t just create AI models—I deliver complete, production-ready solutions that integrate flawlessly with your existing website or a new custom-built platform.
Ready to deploy a powerful, integrated system? Let’s discuss your project.
Steps for completing your project
After purchasing the project, send requirements so Darryn can start the project.
Delivery time starts when Darryn receives requirements from you.
Darryn works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements Validation and Project Setup
Core Structure and Database Integration