I'm a Backend Developer and founder of Ptech – Smart Tech Solutions, a freelance micro-agency specialized in backend engineering, automation, and AI integration.
I design scalable systems and intelligent workflows using Python, Django, FastAPI, LangChain, and n8n, helping startups and companies build data-driven and automation-ready applications.

After leading my own business in the health and wellness sector, I transitioned fully into backend development — now combining clean, modular architectures with workflow automation and AI-powered agents (RAG/RAP) connected to real business data.

📍 Based in Madrid, Spain
🌐 Website: https://ptechsolution.net
📫 Email: dev@ptechsolution.net

• 🤖 Developing Ptech Automation Hub, a modular framework for workflow automation and AI agents (RAG/RAP)
• 🏗️ Expanding HOUSINK, a real-estate SaaS platform built with Django REST Framework
• 💪 Growing CoachBodyFit360, a SaaS platform integrating FitMaster AI for personalized training and nutrition
• 👕 Building ClotheCheck, a virtual try-on system with Generative AI and computer vision
• 🧩 Implementing cloud-native deployments and CI/CD pipelines with AWS, Railway, and GCP
• 📚 Earning certifications in Generative AI & Process Automation (AWS / LinkedIn Learning)
• ⚙️ Maintaining clean code and quality with linters: black, flake8, isort
• 📖 Documenting APIs with Swagger/OpenAPI and full backend docs using Sphinx

Framework for automation and intelligent agents, combining RAG (knowledge retrieval) and RAP (process automation).
Enables companies to integrate AI into workflows, optimize data pipelines, and connect APIs securely.

• Features:
  • Event-driven orchestration (webhooks, cron, APIs)
  • RAG pipelines connected to company knowledge bases
  • Integration with LangChain, OpenAI API, and n8n
  • Modular design for multi-client scalability
• Technologies: FastAPI, LangChain, n8n, AWS Lambda, PostgreSQL, Docker
• Status: Internal framework under Ptech Solutions

A cloud-ready SaaS built with Django REST Framework for individuals, professionals, and companies.

• Features:
  • Role-based registration (individual, professional, business, corporate)
  • REST API with JWT authentication and permissions
  • AI-generated property descriptions (OpenAI API)
  • Media uploads with AWS S3 and CDN integration
• Technologies: Django REST, PostgreSQL, Docker, JWT, AWS, CI/CD
• Stage: MVP completed – active development for production launch

Health SaaS integrating FitMaster AI, an agent that interprets biometric data and generates personalized nutrition/training plans.

• Features:
  • BioAnalyze module for advanced body composition metrics
  • AI-generated plans and recommendations (OpenAI API)
  • Secure authentication (AWS Cognito) and S3 media storage
  • Full documentation with drf-spectacular and Swagger UI
• Technologies: Django, PostgreSQL, OpenAI API, AWS EC2, Docker

Prototype of a virtual try-on experience for fashion e-commerce using computer vision and generative AI.

• Features:
  • AI-driven body segmentation and garment overlay
  • Generative rendering from different angles
  • REST API integration for third-party e-commerce platforms
• Technologies: FastAPI, OpenCV, Vision AI, Python

RESTful microservice that calculates essential body metrics (BMI, BMR, fat percentage).
Modular, secure, and production-ready — integrated with CoachBodyFit360.

• Features:
  • Multi-metric health analysis
  • JWT-protected endpoints and validation
  • Dockerized and CI-tested for cloud deployment
• Technologies: Flask, PostgreSQL, Docker, pytest
• Live Beta: bioanalyze-api.railway.app

A professional desktop app for physical data analysis and reporting.
Built to complement the BioAnalyze API.

• Features:
  • Visual analysis and printable reports
  • Tkinter GUI with exportable PDFs
  • Designed for professional health assessments

2025 – Present | Remote via Malt

• Founder and backend developer of Ptech Solutions, a micro-agency delivering backend systems, automation, and AI integration.
• Building automation workflows and backend APIs using Django REST and FastAPI.
• Working with real clients under agile workflows (GitHub, Jira, budgets, estimations).
• Current focus: Automation Hub, Housink, CoachBodyFit360.

2024 – 2025 | Madrid, Spain (via Page Group)

• Contributed to the company’s internal Extranet for logistics and inventory tracking.
• Worked with the TurboGears framework and PostgreSQL for backend development.
• Integrated APIs for warehouse automation and cross-department communication.

2023 – 2024 | London, UK (Remote)

• Processed financial datasets using Pandas and NumPy.
• Built and optimized Flask/Django APIs for internal analysis.
• Deployed services with Docker and AWS, maintaining MongoDB and Redis for caching.

2021 – 2022 | Remote

• Created Python scripts for data cleaning, visualization, and analysis.
• Built basic pipelines with Pandas, NumPy, and Matplotlib.
• First contact with backend data processing and API development.

"Pablo's insatiable thirst for knowledge and unwavering commitment make him an exceptional individual in the programming realm. His unique blend of interpersonal skills and technical acumen sets him apart as a standout professional. Pablo's contributions to developing robust and scalable software solutions are invaluable."
– Joaquín Béjar García, Senior Quant Software Engineer

"Pablo is an excellent professional, with deep knowledge and specialization in IT project development, particularly in the implementation of apps using top AI tools. He is highly recommended to work with – serious, reliable, and committed to quality delivery."
– Luis García, Account Manager at Global Payments (CaixaBank)

You can download my latest CV in Spanish here:
📥 Download CV

Thank you for visiting my profile! I'm excited to connect and collaborate on innovative projects involving automation, cloud, and intelligent systems.