Catalin Giscan

Experience

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  Eflex

  Mar 2015 - Sept 2017

  System Administrator

  Local consultant

• 

  Atos

  Oct 2017 - May 2025

  🖥️ Cluster Deployment & Storage Management: Installed and configured Dell EMC Isilon (PowerScale) clusters, VLANs, access zones, and file system layouts; optimized tiering policies for performance and efficiency.🛡️ Data Protection & Disaster Recovery: Implemented snapshots, replication, and DR testing to ensure storage resilience and business continuity.🔗 Infrastructure Integration: Connected PowerScale environments with Active Directory, LDAP and monitoring tools.📊 System Monitoring & Troubleshooting: Monitored performance metrics (IOPS, latency, throughput); resolved incidents and escalated complex issues with Dell EMC support. (Nagios, Grafana, InsightIQ)📝 Documentation & Knowledge Sharing: Developed internal troubleshooting guides, process documentation, and knowledge base articles for technical teams.Tech Stack:Dell EMC PowerScale (Isilon), OneFS, SmartQuotas, SyncIQ, Windows Server, DFS (Distributed File System), Active Directory (AD), LDAP, VMware vSphere, Robocopy, PuTTY Show less 🎯 Incident & SLA Management: Ensured adherence to procedures by Service Desk and L2 teams. Managed ticket flow and SLA breach analysis using ServiceNow (SNOW), SDM, and monitoring tools like Nagios, FSMP, GlobalView, and Grafana. Coordinated incident handling across teams to maintain service quality.🤝 Team Leadership & Mentoring: Coached 2nd level support, onboarded engineers, assisted technical interviews, and led KT sessions.🧠 Knowledge Management: Created and maintained KB documentation to support faster troubleshooting and smooth onboarding.📈 Operational Oversight: Managed ticket triage, BAU tasks, workload balancing, and rota planning. Acted as SPOC between the File Team and other technical groups.🧩 Third-Level Technical Support: Provided support for Windows Server 2008–2016, NetApp, EMC, and Nasuni. Managed DFS, DPM, FSMP, AD, GPOs, login scripts, and NTFS permissions.🔄 Migrations & Infra Management: Large-scale migrations (Data/Group/Home Shares, NGFS), DFS updates, domain transitions, and access restructuring.🧰 System Admin & Projects: Handled installation, issue resolution, capacity planning, and backup operations. Deployed Nasuni and Isilon Filers and Windows Servers globally. Configured iDrac, Group Policies, OUs, DFS links; executed migrations via Perl, Robocopy, CMD; provided hyper-care support and cleaned AD/DB post-migration.🛠️ Tools & Technologies: Windows Server, DFS, NetApp, EMC, Nasuni, Active Directory, GPOs, NTFS, Robocopy, Perl, iDrac, CMD, OneFS, ServiceNow, SDM, Nagios, FSMP, GlobalView, Grafana Show less

  • Storage Engineer

    Jan 2022 - May 2025

  • System engineer | FileService Data Migration & Incident Management

    Oct 2017 - Dec 2022
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  OpenText

  Nov 2025 - now

  Senior Storage Engineer