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Darío PérezDP

Darío Pérez

AI Engineer and Software Engineer

€100/day
Cáceres, ES
3-7 years

Average response time: 1 hour

About Darío

¿Quieres llevar la IA a tu empresa más allá de la demo? Te ayudo a integrar modelos de lenguaje (LLMs), agentes y automatización en tu producto o tus procesos, con código que aguanta en producción.
Llevo 6 años desarrollando software y los últimos centrado en sistemas con IA: agentes que ejecutan tareas reales, asistentes conectados a tus propios datos (RAG), automatización de procesos repetitivos e integración de modelos vía API. No me quedo en el prototipo: diseño la arquitectura, la conecto a tus sistemas y la dejo funcionando.
En qué te puedo ayudar:
• Integración de LLMs y agentes IA en producto o procesos internos
• Chatbots y asistentes sobre tu documentación o datos (RAG)
• Automatización de tareas y flujos (seguimiento, notificaciones, extracción de datos)
• Desarrollo backend y APIs en Python/FastAPI (y fullstack cuando hace falta)
· Desarrollo full stack y web.
Stack habitual: Python, FastAPI, LangGraph, React, PostgreSQL, Docker, Celery/Redis. Tengo un máster en ciberseguridad, así que cuido la privacidad y la seguridad de tus datos desde el diseño, no como parche.
Trabajo directo: te digo qué tiene sentido construir, qué no, y por qué. Cuéntame tu caso y te propongo el enfoque más simple que resuelva el problema. Ofrezco también servicio de consultoría sobre tu proyecto y su viabilidad en el entorno tecnológico actual.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • French

    Basic

Remote only
Primarily works remotely

Experience

  • Oyrsa S.L.
    Head of Artificial Intelligence Department / Software Engineer
    November 2020 - Today (5 years and 7 months)
    • • Led AI-driven initiatives for project optimization and investment analysis in construction and real estate, integrating AI models into production workflows and reducing bureaucratic frictions for clients
    • • Managed a range of team tasks, including project planning and tracking, feedback analysis, resource management, and meeting coordination. This resulted in approximately €500,000 in funding from CDTI, partnerships with third-party companies which provided valuable data, and wining the Innovation Award from CEOE Cepyme Salamanca
    • • Built and deployed five web platforms (CRM, budgeting tool) using Laravel (PHP), Node.js and Vue.js, resulting in platforms that facilitate communication on projects both with clients and internally
    • • Conducted data analysis with Python/R to advise executive decisions, resulting in improved decision making and securing around half a million euros in funding from CDTI
    • • Developed banking integration, financial document automation, and business expense control for credit cards, allowing for comprehensive management of expenses and automating accounting data using webhooks and bank APIs
    • • Developed integrations with cadastral systems and internal Java modules to enhance data automation and visualization through graphs-theory
    AI Integration LLMs Diseño Web Resolución de problemas software architect
  • BISITE Research Group & AIR Institute, University of Salamanca
    Full-Stack Developer / Research Engineer
    September 2020 - March 2023 (2 years and 6 months)
    • • Created business success prediction platform (Node.js/Express, EJS) leveraging pre-trained ML models
    • • Developed Angular dashboards for real-time wind energy monitoring and analytics, enabling tracking of turbine performance's, power generation, and timely identification of breakdowns
    • • Collaborated with several interdisciplinary teams to operationalize machine learning and reproducible data pipelines, which secured several millions of euros in investments
  • Codisoil Energy Distribution Company
    Data Analyst & IT Consultant
    November 2019 - August 2020 (9 months)
    • • Implemented and customized time-tracking and analytics system, leading vendor selection and deployment
    • • Built data reporting tool automating PDF generation for management insights
    • • Conducted route efficiency analysis, identifying and reducing costs by thousands of euros for fuel delivery routes

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Education

  • Master's Degree
    Universitat Oberta de Catalunya
    2026
    Master's Degree
  • Bachelor's Degree
    Universitat Oberta de Catalunya
    2024
    Bachelor's Degree

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