I'm Andrei Cocan — a detail-driven administrator with hands-on experience in maintaining and optimizing IT infrastructure, including system troubleshooting, network administration, cloud deployments, and endpoint security. I specialize in ensuring high availability, performance, and security across enterprise environments. Curious by nature and methodical by design, I thrive in technical environments where adaptability and critical thinking matter.
Technical Skills
Experience
Systems Administrator
- Administered and maintained on-premises IT infrastructure, including workstations, servers, and network devices (wired/wireless), ensuring high availability and performance.
- Diagnosed and resolved complex hardware, software, and network issues, reducing downtime through proactive troubleshooting and root cause analysis.
- Optimized systems and workflows by implementing reliability upgrades, streamlining printer management, and supporting live-streaming technologies for organization-wide use.
CNC & Laser Systems Technician
- Operated and maintained precision CNC equipment and laser systems with a focus on efficiency and accuracy.
- Diagnosed issues with software and hardware configurations on precision machines.
- Executed QA checks ensuring compliance with technical specs and client specifications.
Education
Certifications
Relevant Coursework Experience
Systems Deployment & Virtualization
- Designed and deployed virtualized infrastructure using VMware ESXi and Hyper-V, configuring resource allocation, storage (SAN/NAS), and failover clustering for high availability.
- Automated provisioning of Windows Server 2019/2022 and Linux (RHEL, Ubuntu) systems through PowerShell DSC and Ansible playbooks.
Network Services Administration
- Configured and maintained core infrastructure services including DNS, DHCP, RADIUS (NPS), and PKI certificates in simulated enterprise environments.
Security & Compliance Management
- Hardened systems by applying CIS Benchmarks and configuring GPOs/SELinux policies to meet NIST requirements.
Automation & Scripting
- Built Bash/Python scripts to parse system logs, monitor disk space, and automate routine maintenance tasks.
Technical Documentation & Knowledge Transfer
- Produced system architecture diagrams and operational runbooks using Visio and Confluence.
- Designed cross-training materials for backup administrators covering system recovery procedures.