07/28/2025 updated
100 % available
Senior Systems & Infrastructure Engineer – Unix/Linux Specialist | 10+ yrs in Enterprise Environment
Barcelona, Spain
Only remote
Self-Paced Technical Training24/7 ServicesAutomationBash ShellBusiness EfficiencyBusiness Process ImprovementUnixUbuntu (Operating System)CentOSChange ManagementComputer SecurityLinuxIncident ResponseSystem MonitorHP Service Manager SoftwareInformation Technology Infrastructure Libraries (ITIL)
Unix/Linux Administration
Senior-level management of 5,000+ Unix/Linux servers across production, staging, and certification environments. Proven expertise in RHEL, CentOS, Ubuntu, and Solaris, supporting mission-critical systems for global enterprise clients.
Incident Management
Hands-on experience managing 24x7 global incidents, specializing in Sev1/Sev2 escalations. Skilled in coordinating cross-functional teams under pressure and ensuring swift resolution of high-impact issues.
ITIL Compliance
Executed 300+ ITIL-compliant RFCs, contributing to stable infrastructure changes and continuous improvement. Familiar with ServiceNow and HP Service Manager for tracking incidents, problems, and changes.
Virtualization & Infrastructure Support
Strong working knowledge of VMware and related virtualization platforms, supporting hybrid IT environments and large-scale infrastructure operations.
Scripting & Automation
Experienced with Bash scripting for automating routine sysadmin tasks, log rotation, system checks, and environment provisioning.
Documentation & Knowledge Sharing
Developed SOPs, troubleshooting guides, and technical documentation to support internal training and improve operational efficiency. Participated in audit preparations representing Unix/Linux processes.
Strategic Focus – AI & Cybersecurity
Currently focused on expanding my skill set into AI infrastructure and cybersecurity, with self-paced training and targeted coursework to support a long-term transition in these high-impact areas.
Senior-level management of 5,000+ Unix/Linux servers across production, staging, and certification environments. Proven expertise in RHEL, CentOS, Ubuntu, and Solaris, supporting mission-critical systems for global enterprise clients.
Incident Management
Hands-on experience managing 24x7 global incidents, specializing in Sev1/Sev2 escalations. Skilled in coordinating cross-functional teams under pressure and ensuring swift resolution of high-impact issues.
ITIL Compliance
Executed 300+ ITIL-compliant RFCs, contributing to stable infrastructure changes and continuous improvement. Familiar with ServiceNow and HP Service Manager for tracking incidents, problems, and changes.
Virtualization & Infrastructure Support
Strong working knowledge of VMware and related virtualization platforms, supporting hybrid IT environments and large-scale infrastructure operations.
Scripting & Automation
Experienced with Bash scripting for automating routine sysadmin tasks, log rotation, system checks, and environment provisioning.
Documentation & Knowledge Sharing
Developed SOPs, troubleshooting guides, and technical documentation to support internal training and improve operational efficiency. Participated in audit preparations representing Unix/Linux processes.
Strategic Focus – AI & Cybersecurity
Currently focused on expanding my skill set into AI infrastructure and cybersecurity, with self-paced training and targeted coursework to support a long-term transition in these high-impact areas.
Experience
Professional experience10+ years
Freelancer since2019
Languages
EnglishFluentSpanishNative speaker
Project history
Oversaw the operation of 5,000+ Unix/Linux servers for global enterprise clients. Led shift rotations for a team of 7 engineers, managed Sev1/Sev2 incidents, and coordinated cross-team escalations. Represented Unix Operations in client-facing meetings, participated in internal audits, implemented ITIL-compliant change requests (300+ RFCs), and delivered documented process improvements.
Monitored enterprise systems (Unix, Linux, Solaris, Windows, VMware), triaged incidents with global stakeholders, authored SOPs and internal documentation, and supported the ITSM migration process to ServiceNow.
Administered Unix/Linux servers in HP’s US datacenters, performed OS patching and hardware replacements, executed RFCs under ITIL standards, and ensured compliance and service uptime.