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Jonás De Martín RodríguezJD

Jonás De Martín Rodríguez

AI Engineer | AI Agents · RAG · Automation

€300/day
Valencia, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jonás

I am an AI Engineer and Data Scientist specializing in AI automation, intelligent agents, RAG systems, and applied prompt engineering, with experience helping companies optimize processes, reduce time, and turn data into useful decisions.

I work on designing AI solutions applied to business, from idea to production, combining technical vision with a practical approach. My goal is to ensure AI moves beyond testing and generates real impact in the company's day-to-day operations.

How can I help you?

• Automating processes using generative AI and intelligent agents.
• Developing RAG systems to leverage documentation and internal knowledge.
• Creating AI chatbots and assistants based on LLMs.
• Designing data pipelines with Python and SQL.
• Implementing analytics and decision support solutions.

Typical results

• Significant reduction in time spent on manual tasks.
• Improved access to information and decision-making.
• Increased operational efficiency through intelligent automation.

I hold advanced training in Data Science, Big Data & Business Analytics from the Complutense University of Madrid, with a grade of 9.6/10 and an award-winning Master's thesis for the development of a RAG system applied to public contracts for AENA and ADIF.
I work remotely or hybrid, adapting each solution to the client's real needs.
  • Spanish

    Native or bilingual

  • English

    Fluent

Can work on-site
Valencia (up to 50km)

Experience

  • Amaia Cuida
    AI Engineer
    HEALTH AND WELLNESS
    December 2025 - Today (6 months)
    Professional collaboration (part-time)
    • Development of AI solutions applied to the care sector, aimed at daily use.
    • Transformation of records and documentation into actionable knowledge for professionals. Implementation of systems based on generative AI, AI agents, and intelligent automation (end to end).
    • Collaboration on a real, growing product within the care sector, focusing on impact and daily use by professionals.
    Artificial Intelligence (AI) Intelligent Automation AI and Advanced Analytics Generative AI Process Automation
  • Formacion3D
    AI Engineer & Data Scientist
    January 2019 - Today (7 years and 5 months)
    Valencia, Spain
    Technical leadership and execution of AI and Applied Data Science projects. Design and implementation of conversational AI agents and advanced chatbots based on LLMs, integrated into operational workflows. Development of RAG systems for analysis of documentation and unstructured data, improving access to critical information. Design of end-to-end architectures (data ingestion, pipelines, models, APIs, and maintenance), focusing on robustness and scalability (applied MLOps). Automation of business processes using AI and low-code/no-code tools, reducing manual operational load. Development of advanced analytics and predictive models for decision support. Training and knowledge transfer in generative AI and data science to facilitate the adoption of solutions by teams.
    Main Stack: Python, SQL, Generative AI (LLMs, RAG), AI Agents, LangChain, LangGraph, APIs, Data Pipelines, Applied MLOps, Process Automation.
    MLOps Python Process Automation RAG Generative AI

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Education

  • Master's in Data Science, Big Data & Business Analytics
    Complutense University of Madrid (UCM)
    2025
    Formación especializada en Data Science, Inteligencia Artificial y Analítica Avanzada, con un enfoque eminentemente práctico y orientado a la aplicación real en entornos empresariales. Desarrollo de proyectos completos en Machine Learning, Deep Learning, IA Generativa, NLP, Big Dato, BI, resdes sociales, SQL, NoSQL, Docker, minería de datos y sistemas RAG, aplicados a la automatización de procesos, análisis de grandes volúmenes de información y toma de decisiones basada en datos. Especialización en el diseño e implementación de soluciones de IA end-to-end, abarcando desde la ingesta y preparación de datos, el entrenamiento y evaluación de modelos, hasta su despliegue en entornos productivos y su integración con sistemas existentes. Formación orientada a la resolución de problemas reales de negocio, incluyendo automatización inteligente, análisis documental, construcción de agentes IA y explotación de datos no estructurados. Trabajo Fin de Máster premiado, centrado en el desarrollo de un sistema RAG (Retrieval-Augmented Generation) para el análisis automatizado de contratos públicos de las empreas AENA y ADIF, integrando modelos de lenguaje, recuperación semántica y procesamiento avanzado del lenguaje natural.
  • Bachelor's in Educational Sciences - specialization in psychopedagogy
    University of La Laguna (Tenerife)
    1997
    Especialización en evaluación, análisis de datos educativos y estadística aplicada. Formación orientada a la evaluación, análisis cuantitativo, interpretación de datos y toma de decisiones basada en evidencia.

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