Freelancer profile translated to English.
Back to original languageAbout Javier
Computer Engineer with over 25 years of professional experience.
Yes, I am one of those geeks who has been in front of a computer for more years than I can remember.... Throughout my career, I have collaborated with national and international companies in the IT sector, always with a solid and practical technical focus.
My specialty is systems administration, especially in Linux environments, whether physical, virtualized, or in the cloud. I also have experience in a wide variety of related areas:
✅ Systems Administration (especially Linux)
✅ Network Administration (VPN, DNS, DHCP, LAN/WAN, routing, switching...)
✅ Cloud Computing (AWS, Azure, Google Cloud,...)
✅ Cybersecurity: hardening, audits, service protection...
✅ Backups, monitoring, automation, and optimization of processes and services
✅ Server and website migration
✅ Mail servers (Postfix, SPF, DKIM, DMARC, anti-spam...)
✅ Diagnosis and resolution of complex incidents
I am deeply passionate about my work. I give my best in every project, combining experience, attention to detail, and results orientation.
In addition to my technical knowledge, I consider myself communicative, perfectionist, responsible, and honest. I know no other way to work than with high standards, precision, and total commitment.
If my profile fits your requirements... Maybe you can hire me! [A-Team Van Emoji] :)
English
Fluent
Spanish
Native or bilingual
Remote only
Primarily works remotely
Experience
- FreelancerLight BeingTECHAugust 2018 - Today (7 years and 11 months)Las Palmas de Gran Canaria, Canarias, EspañaFreelance systems administrator collaborating on national and international IT projects. Specializing in Linux environments, networks, information security, virtualization, and self-hosted services. Expert in designing, implementing, and maintaining reliable, secure, and efficient infrastructures, as well as automating processes and ensuring service continuity. High commitment to technical quality and continuous improvement.
- OVHSpain Datacenter ManagerTECHSeptember 2017 - July 2018 (10 months)Madrid, SpainResponsible for the setup and operational management of OVH's hyperscale datacenter in Spain. Coordination with local authorities, institutions, and suppliers, as well as participation in improving the monitoring systems of the group's international datacenters. Focus on efficiency, availability, and large-scale operational standardization, managing critical infrastructures with high technical requirements.
- Grupo S21secHead of IT & FacilitiesTECHOctober 2008 - August 2017 (8 years and 10 months)Madrid y alrededores, EspañaManagement of the IT and Facilities department for the group, with operations in four countries. Comprehensive management of datacenters, definition of IT strategies, budget control, negotiation with suppliers, and leadership of technical teams. Responsible for the security, continuity, and technological evolution of the company's infrastructure. Member of the security committee, ensuring compliance with regulations and cybersecurity standards.
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Education
- Master in CybersecurityS21sec Academy2009
- Degree in Computer EngineeringUniversidad Pontificia de Salamanca (Campus Madrid)2007
Certifications
- ITIL v3 FoundationESF Group2011
- Allot Netenforcer AdministratorAllot2010