You will get a custom Python backend API for your app or automation
Rising Talent
Project details
Need a backend API that's clean, fast, and holds up under real usage?
I specialize in Python REST APIs using FastAPI and PostgreSQL. From simple CRUD endpoints to complex data processing pipelines with third party integrations.
InvoiceShip is a good example - added to my portfolio. Full API that generates PDF invoices, handles tax calculations, manages client history, and delivers invoices via email automatically. Built with FastAPI, PostgreSQL, and Docker.
What I can build:
• CRUD APIs with full database design
• Third party API integrations
• Webhook integrations
• Automated data processing pipelines
• PDF generation and email delivery
• Scheduled background tasks
• Authentication and user management
• Docker deployment ready
Clean code, Swagger documentation included, easy to maintain and build on later.
Not sure what you need?
Send me a message and we'll figure it out together.
I specialize in Python REST APIs using FastAPI and PostgreSQL. From simple CRUD endpoints to complex data processing pipelines with third party integrations.
InvoiceShip is a good example - added to my portfolio. Full API that generates PDF invoices, handles tax calculations, manages client history, and delivers invoices via email automatically. Built with FastAPI, PostgreSQL, and Docker.
What I can build:
• CRUD APIs with full database design
• Third party API integrations
• Webhook integrations
• Automated data processing pipelines
• PDF generation and email delivery
• Scheduled background tasks
• Authentication and user management
• Docker deployment ready
Clean code, Swagger documentation included, easy to maintain and build on later.
Not sure what you need?
Send me a message and we'll figure it out together.
Programming Languages
HTML & CSS, JavaScript, PythonCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$100
|
Standard
$250
|
Advanced
$500
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 21 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 5 | 15 | 30 |
Design Customization | - | - | - |
Content Upload | - | ||
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$30 - $100
Additional Revision
+$15
Docker deployment setup
(+ 2 Days)
+$75Frequently asked questions
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CK
Caleb K.
May 18, 2026
Full Stack Developer for API Aggregation Dashboard
Davis is great developer and I would highly recommend working with him.
About Davis
Python Developer | Backend APIs, Automation & Data Tools
Riga, Latvia - 5:02 pm local time
From web scraping pipelines to Telegram bots and real-time monitoring platforms. I focus on solving the actual problem, not just writing code.
What I build:
• Automation systems that replace manual workflows (scraping, bots, scheduled tasks)
• Backend APIs using Python & FastAPI (clean, scalable, well-structured)
• Third-party API & webhook integrations (Stripe, Telegram, custom services)
• Data pipelines & processing systems (collection → transformation → delivery)
• Telegram bots with real-time alerts, commands, and business logic
• Database design & management (PostgreSQL, structured & scalable)
I don’t just write scripts - I build and run real systems used by actual users. Here are two platforms I developed from scratch:
1. CryptRadar
Real-time cryptocurrency monitoring platform with active users and paid subscriptions.
• Live data tracking & alert system
• Telegram bot with advanced monitoring logic
• Subscription system & payments
• Fully deployed backend (PostgreSQL, APIs, automation)
2. Priceint
Competitor price tracking platform for e-commerce businesses.
• Custom scraping engine (handles JS-heavy sites + structured data)
• Real-time price & stock alerts via Telegram
• Multi-tenant SaaS with subscriptions & team workspaces
• Analytics dashboard (price history, trends, opportunity detection)
• XLSX exports, admin panel, and full backend infrastructure
Both systems are built as real, production-ready products, not just demos.
I also run Devlores ( devlores com ), backend development studio where I take on client projects alongside my own products.
Before I start write anything I make sure I actually understand what needs to be solved. I keep things simple, well documented, and easy to maintain or build on later.
Clear communication and delivery is key, and that's what you can expect from me.
If you need something automated, integrated, or built from scratch - send me a message.
I’ll quickly tell you if I can solve it and how I’d approach it.
Steps for completing your project
After purchasing the project, send requirements so Davis can start the project.
Delivery time starts when Davis receives requirements from you.
Davis works on your project following the steps below.
Revisions may occur after the delivery date.
Review requirements and design structure
Analyze your requirements, design database schema, define all endpoints and data models before writing any code.
Build and test the API
Develop all endpoints, connect integrations, write tests, and verify everything works correctly via Swagger UI.