You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Roberto CastilloRC

Roberto Castillo

AI & Automation Consultant | Claude ChatGPT

€250/day
Madrid, ES
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Roberto

With over 10 years in technology and infrastructure, I help companies of any sector implement artificial intelligence solutions practically and without technical jargon.
I specialize in automating repetitive tasks, configuring AI assistants, and optimizing how teams use tools like Claude and ChatGPT.

Does your company waste hours on tasks AI could handle?

I analyze your operations and deliver concrete solutions in days, not months. No endless projects or empty promises.
If you have questions, write to me.
First consultation is free.
  • Spanish

    Native or bilingual

  • English

    Conversational

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

Experience

  • Freelance / Independiente
    Artificial Intelligence Consultant
    June 2026 - Today (1 month)
    Implementation of AI solutions for companies. Configuration of assistants with Claude and ChatGPT, prompt optimization, and process automation.
  • INDRA
    Infrastructure and Security Engineer
    DEFENSE AND MILITARY
    January 2024 - Today (2 years and 6 months)
    Madrid, Spain
    • Working in a classified environment
    • On-premise infrastructure maintenance: Cisco
    Asa, Fortinet, Alcatel. VLAN, port, switch configuration, maintenance, patching
    • Windows Server 2012 and 2019 administration and management: AD, DNS, DHCP, Fileserver, user quotas,
    GPO, Hyper-V
    • Network security: Nessus, antivirus (McAfee),
    KB vulnerabilities, patch installation and updating
    • Automating processes with Ansible: Configuration/
    installation of switch/firewall, esxi, vsan,
    virtual machines
    • Imaging equipment through Clonezilla
    • Virtualization environment administration with
    VMWARE: vcenter, esxi
    • Backup management with Veam Backup
    • Linux administration with S.O Suse, Red Hat, and Ubuntu
    • Process documentation
    Cybersecurity Process automation Nessus Windows Server IT infrastructure
  • Insparya Hair Medical Clinic
    SysAdmin
    HEALTH AND WELLNESS
    May 2020 - January 2024 (3 years and 8 months)
    Madrid, Spain
    Responsible for managing clinic openings nationwide
    as well as internationally. I manage at the network,
    infrastructure, system, material imaging, and user support levels
    • Experience with Windows servers with Active Directory,
    DHCP, DNS
    • In Linux (Ubuntu) managing websites through
    WordPress: server maintenance, log review, DB migration
    • Monitoring servers and networks with Zabbix
    • I manage virtual switchboards both at the support level
    and for the creation of new flows with tools
    like Talkdesk, Avaya, Aircall, Cloudtalk
    • Responsible for the infrastructure of all clinics
    with Unify, Sophos, Omada Cloud applications.
    Network configuration, VLAN, ports, access, VPN
    • Manage a team of 4 people (technical profiles and interns/
    internships)
    Gsuite Wordpress
    Zabbix Avaya VLAN Network administration

Recommendations

Be the first to recommend Roberto

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Higher Vocational Training in Computer Systems Administration (ASI)
    IES Palomeras
    2008
  • Prompt Engineering & Applied Artificial Intelligence
    Self-learning / Anthropic & OpenAI
    2024
    Formación autodidacta en ingeniería de prompts avanzada, configuración de modelos de lenguaje (Claude, ChatGPT) y automatización de procesos con IA. Aplicación práctica en casos de uso empresariales: asistentes inteligentes, optimización de flujos de trabajo y consultoría de transformación digital.

Certifications

  • Artificial Intelligence and Cybersecurity: Keys to Productivity and Digital Protection
    Universidad de San Jorge
    2026
    AI Productivity Artificial Intelligence applied to business Cybersecurity Prompt engineering Data protection Digital transformation
  • Ansible
    Formadores IT
    2024
    DevOps Linux Systems administration Configuration management Infrastructure automation Scripting

Skill set

Categories