Freelancer profile translated to English.
Back to original languageAbout Rafael
I am a systems administrator with experience in Linux environments and online training platform management (Moodle), currently working in public educational infrastructure.
I help companies, academies, and online trainers keep their systems stable, secure, and optimized.
🔧 Specialties:
- Linux server administration (Debian/Ubuntu)
- Moodle installation, configuration, and optimization
- System maintenance and security
- Infrastructure task automation
- Backups and recovery
- Performance troubleshooting
💡 Approach:
I don't just install systems; I leave them running stably, securely, and easily maintainable. My goal is to reduce technical issues and prevent downtime or data loss.
📌 I work with clear communication, practical solutions, and results orientation.
Spanish
Native or bilingual
English
Fluent
Can work on-site
Sevilla (up to 50km)
Experience
- Sociedad de Gestión Pública de Extremadura, S.A.U. (GPEX)Systems EngineerMarch 2019 - Today (7 years and 4 months)• Administration of existing virtualization platforms at SEXPE (VMWARE and Citrix XenServer), as well as storage units and tape libraries for backups.• Update/implementation/deployment of applications used in SEXPE.
- ZelenzaSystems OperatorJune 2015 - March 2019 (3 years and 9 months)Voice and data support technician for the CGP of Junta de Extremadura for the Telefónica de España project.• Data network supervision: knowledge in Frame Relay services, ATM links, IP VPN (ADSL), MacroLan, and DIBA.• Administration, management, and incident resolution in MAN and WAN environments at Junta de Extremadura.• Configuration and troubleshooting of managed equipment, Cisco equipment (Series 800 to 7000, Cisco Catalyst 35XX, Juniper SRX, EX 4200).• Voice network maintenance and supervision: knowledge in RTBs, IBERCOM, and IBERCOM IP services.• Configuration of IP sites/terminals on Cisco Unified Call Manager platforms (Versions 6.1 to 9.1).• Configuration of value-added services, such as Unity voicemail (Versions 6.1 to 9.1).• Knowledge of LAN networks, installation and maintenance of Cisco, Juniper, 3COM, Allied Telesis, etc. electronics.• Configuration of WiFi devices, with ARUBA technology.• Use of Telefónica's corporate maintenance tools (SAC Vantive, SIGA, SERA, XLAN, iGRI, SAM) and supervision tools (Netcool, WOCU).• Use of Telefónica's corporate provisioning tools (SGC, LOGOS, OMEGA, CIBERUN).• Proposals for improvements to the client within their communication solutions.
- ANOVORepair TechnicianJuly 2012 - May 2015 (2 years and 10 months)• Level 1 technician for the official technical service of Samsung, Nokia, Lg, and Sony Ericsson, through the subcontractor STAR MOBILE SOLUTIONS.• In charge of managing incidents related to the after-sales service for mobile device sales.• Activity carried out at the official Movistar store in Mérida.
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Education
- EngineeringUniversity of Extremadura2011Ingeniería