DIEGO CASTRO
Systems Administrator | DevOps Engineer | ISO/IEC 27001 Internal Auditor
PROFESSIONAL SUMMARY
Systems Administrator with 14+ years of experience in IT infrastructure, specializing in Cloud environments (Kubernetes), virtualization, and information security. ISO/IEC 27001 Certified Internal Auditor and DevOps Engineer. Proven expertise in managing critical infrastructures, implementing high-availability solutions, and optimizing processes through automation.
PROFESSIONAL EXPERIENCE
Systems Administrator | ITC Soluciones S.A.
Mendoza, Argentina | December 2021 – Present
- Oversee complete enterprise infrastructure including on-premise data center and Cloud environment on DigitalOcean Kubernetes (DOKS), ensuring 99.9% uptime
- Administer Linux and Windows Server systems with proactive monitoring using Zabbix, Prometheus, and Grafana for real-time performance analysis
- Manage comprehensive Fortinet security solutions (FortiGate, FortiWAN, FortiClient EMS, FortiManager, FortiAnalyzer) including security policy configuration and threat analysis
- Administer virtualization platforms (VMware ESXi and Proxmox VE), optimizing resource allocation and ensuring high availability of critical services
- Implement and orchestrate Docker containers and Kubernetes clusters, automating deployments through CI/CD pipelines with Rancher
- Configure and manage Kubernetes clusters on DigitalOcean, integrating Load Balancers and Volumes while optimizing cloud infrastructure costs
- Design and implement backup and disaster recovery strategies using Veeam Backup Server, ensuring optimal RPO/RTO metrics
- Conduct internal audits and develop security processes according to ISO/IEC 27001 standards, contributing to ISMS continuous improvement
- Manage vendor relationships and procurement of hardware, software licenses, and IT services
Support Analyst | ITC Soluciones S.A.
Mendoza, Argentina | December 2010 – December 2021
- Provided Help Desk and technical support to end users, maintaining high customer satisfaction ratings
- Resolved technical incidents and performed installation, configuration, and maintenance of communication systems
Systems Administrator | Adetech-Industrial S.A.
Mendoza, Argentina | September 2010 – February 2011
- Administered Linux and Windows Server systems
- Managed firewalls (Netfilter, IPFilter, Packet Filter) and configured VPNs (IPSec, OpenVPN, PPTPd) for secure remote access
Support Analyst | ITC Soluciones S.A.
Mendoza, Argentina | October 2006 – October 2009
- Provided Help Desk support and resolved end-user incidents
- Installed, configured, and maintained communication systems with on-site technical support
TECHNICAL COMPETENCIES
Infrastructure & Cloud
Kubernetes (DOKS) • Docker • Rancher
DigitalOcean • Google Cloud
VMware ESXi • Proxmox • Load Balancers
Operating Systems
Linux (Advanced) • Windows Server
Bash Scripting • Python
Security
Fortinet (FortiGate, FortiWAN, FortiClient EMS, FortiManager, FortiAnalyzer)
Firewalls • VPN • ISO/IEC 27001
Monitoring & Backup
Zabbix • Prometheus • Grafana
Veeam Backup Server • Log Analysis
Development & Automation
Git • CI/CD Pipelines
Automation Scripting • API Integration
Databases
MySQL • PostgreSQL
CERTIFICATIONS & SPECIALIZATIONS
- Internal Auditor Training – IRAM-ISO/IEC 27001 | IRAM – 2024
- Introduction to Forensic Analysis of Digital Evidence and Cybersecurity Incidents | SADIO – 2024
- DevOps Engineer | EducacionIT – 2023
- Postman API Fundamentals Student Expert | Postman – 2023
- Architecting with Google Kubernetes Engine Specialization | Coursera – 2020
LANGUAGES
- Spanish – Native
- English – Elementary (Technical documentation reading)