Alexandru Serban

Datacenter Technician (Dco) Network Sme Infrastructure & Systems Specialist @Amazon Web Services (AWS)

London, GB

Deploy, install, configure, auditing and commission racks of hosts per internal SLAs; validate power, cooling, and connectivity to bring capacity online quickly.• Triage and resolve trouble tickets across systems, servers, and network hardware; resolved 2,300+ high-severity incidents; acted as DC escalation POC for complex issues.• Maintained data integrity and security by tracking media through chain-of-custody and validating data sanitization per SOPs; used wipe verification, degaussing, and physical destruction in accordance with NIST SP 800-88.• Perform break/fix and preventative maintenance on servers and network devices; remediate physical layer and power issues; execute diagnostics and component replacements.• Enforce security best practices and site safety procedures; interact with third-party vendors/contractors under operational and security controls.• Troubleshoot and support ML/AI hardware (e.g, NVIDIA GB100 - Blackwell / GB200 GraceHopper) including custom profiles; deep dive into Linux server issues and infrastructure operations.• Manage RMA lifecycle and spares rotation to maintain readiness; ensure accurate parts handling and documentation.• Serve 24x7 on-call; certified first responder for Rackdown and Large-scale events; participate in power/cooling events to restore services promptly.• Recently promoted as Network SME; mentor and train staff; contribute to hiring; recognized for leadership and customer obsession; annual review: exceeded the bar.• Use of systems for ticketing, incident management, and workflow tracking.