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Sergio PérezSP

Sergio Pérez

AI Solutions Engineer & Tech Lead

€450/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sergio

Software engineer with experience in full stack development, cloud, and technical team coordination. In the last year, I have focused on the design, development, and integration of artificial intelligence solutions applied to business, including agents, multi-agent architectures, document automation, intelligent data extraction, and knowledge-based assistants. I combine technical execution with product vision, team coordination, and client support in the definition, validation, and production of scalable AI and software solutions.
  • Spanish

    Native or bilingual

  • English

    Conversational

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

Experience

  • SqaaS
    Co-founder & AI Solutions Engineer
    June 2025 - Today (1 year and 2 months)
    Second phase of SQAAS, entirely focused on artificial intelligence. Design, development, and production deployment of agents and multi-agent systems integrated into the client's core products, combining the technical role with team coordination and product strategy. AI & Automation — Featured Projects: Document Agent: RAG system for intelligent querying and classification of internal documentation, drastically reducing search times. Quotations: Orchestrator agent with three specialized sub-agents that automate the complete budget management cycle. Multi-process system that automatically structures heterogeneous invoice data, eliminating manual entry. Matching Engine: Cross-references client requirements with the internal technical knowledge base, generating detailed suitability reports. Release of integration with one of the most critical services in the client's ecosystem, directly impacting their business flow. (160 assistants) Practical design regarding
    TypeScript Software Architect Artificial Intelligence Team Management AI Agent
  • Neoland
    Full Stack Web Professor
    May 2024 - February 2025 (9 months)
    • • Teaching the Full Stack Bootcamp: React, Node.js, MongoDB, REST APIs, and agile methodologies.
    • • Preparing students for real work environments through projects and code reviews.
    • • Focus on development best practices, API integration, and agile development processes.
  • Neoland
    Full Stack Developer Professor
    April 2024 - Today (2 years and 4 months)
    Implementation of individual and team work methodologies, development in solving tech problems with the MERN stack in a full stack web bootcamp.

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Skill set

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