You will get a custom python fastAPI REST API or bug fix
Project details
1. Project summary (Copia y pega todo este bloque en la caja de texto principal):
Need a reliable backend for your application, a quick fix for a failing endpoint, or a custom API integration? I specialize in building fast, secure, and maintainable REST APIs using Python and FastAPI.
With over 20 years of experience in critical IT operations and infrastructure, I build production-minded software designed for reliability and security.
What I offer:
Custom API development (FastAPI, Python).
Debugging and fixing existing Python backends.
Database integration (PostgreSQL, SQLAlchemy).
Authentication & Security (JWT, RBAC).
Clean, documented code (OpenAPI/Swagger included by default).
STRICTLY OUT OF SCOPE:
Frontend development (UI/UX, React, etc.).
Full SaaS architecture for $50 (this is for specific backend modules).
Cloud deployment or complex DevOps configuration (unless custom order).
Refactoring massive legacy codebases without prior auditing.
Please message me before ordering to confirm scope!
Need a reliable backend for your application, a quick fix for a failing endpoint, or a custom API integration? I specialize in building fast, secure, and maintainable REST APIs using Python and FastAPI.
With over 20 years of experience in critical IT operations and infrastructure, I build production-minded software designed for reliability and security.
What I offer:
Custom API development (FastAPI, Python).
Debugging and fixing existing Python backends.
Database integration (PostgreSQL, SQLAlchemy).
Authentication & Security (JWT, RBAC).
Clean, documented code (OpenAPI/Swagger included by default).
STRICTLY OUT OF SCOPE:
Frontend development (UI/UX, React, etc.).
Full SaaS architecture for $50 (this is for specific backend modules).
Cloud deployment or complex DevOps configuration (unless custom order).
Refactoring massive legacy codebases without prior auditing.
Please message me before ordering to confirm scope!
Programming Languages
PHP, HTML & CSS, PythonCoding Expertise
Security, DesignWhat's included
| Service Tiers |
Starter
$50
|
Standard
$150
|
Advanced
$350
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 0 | 0 | 1 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Third-Party API Integration (e.g. OpenAI)
(+ 2 Days)
+$100
Docker Containerization
(+ 1 Day)
+$40Frequently asked questions
About Mariano Hernan
Python Backend & AI Automation Developer | FastAPI | REST APIs | SaaS
Cordoba, Argentina - 8:19 pm local time
Currently serving as Head of ICT Division at PAMI (Argentina’s largest healthcare organization), I bridge technical execution with high-level operational strategy. I design and build robust backend systems, automated web scrapers, and AI prototypes that reduce manual tasks and streamline complex administrative workflows.
⚙️ Core Expertise & Strategic Focus
Python & Backend Engineering: Building high-performance REST APIs with FastAPI, data processing pipelines with Pandas, and custom scripting.
Applied AI & LLM Integration: Building proof-of-concepts integrating OpenAI, Anthropic, and Groq APIs (Llama 3.3) for document OCR, medical claim pre-auditing, and intelligent data classification.
Automated Data Extraction & Web Scraping: Crafting resilient web scrapers and extraction tools (Playwright, Selenium, BeautifulSoup) to transform unstructured web data into structured databases (Excel, CSV, JSON).
Healthcare & Enterprise IT Leadership: Deep domain knowledge in healthcare operations, SD-WAN infrastructure, and ITIL-aligned operations.
🛠️ Tech Stack
Languages & Frameworks: Python | FastAPI | Pydantic | Pandas | OpenPyXL
Scraping & Automation: Playwright | Selenium | BeautifulSoup | Requests
AI & Data Processing: LLM APIs (Groq, OpenAI, Anthropic) | Prompt Engineering | Document OCR / Vision
Tools & Practices: REST APIs | Git/GitHub | IT Operations | HealthTech Systems
Whether you need a custom web scraper, an automated data extraction pipeline, or an AI-powered API integration for health/business processes, feel free to reach out. Let's discuss your project!
Steps for completing your project
After purchasing the project, send requirements so Mariano Hernan can start the project.
Delivery time starts when Mariano Hernan receives requirements from you.
Mariano Hernan works on your project following the steps below.
Revisions may occur after the delivery date.
Scope Alignment & Development
We review your requirements. Then, I write clean, documented Python/FastAPI code, test it, and deliver it with Swagger documentation.