Salmen Ibn Salem

Salmen Ibn Salem Ottawa, ON | - |-LinkedIn: linkedin.com/in/salmen-ibn-salem Bilingual System & Network Administrator with 9 years of experience in securing, designing, and maintaining multi-site IT infrastructure. Proficient in Cisco, MikroTik, Windows Server, VMware, and Microsoft 365. Known for resolving issues quickly, strengthening security, and delivering projects on time and on budget. Technical Skills - Networking & Security: Cisco IOS, Mikrotik RouterOS, HP/Aruba, Ubiquiti UniFi, VLANs, OSPF, BGP, ACLs, IPsec/OpenVPN VPN, DHCP, DNS, Wireshark, SNMP, IDS/IPS, Sophos/Cyberoam - Systems & Virtualization: Windows Server-, Active Directory, Group Policy, Hyper-V, VMware ESXi/vSphere, Linux (Ubuntu, CentOS) - Cloud & Collaboration: Microsoft 365, Azure fundamentals, AWS fundamentals, Exchange Online, Teams, SharePoint - Backup & DR: Veeam Backup & Replication, Windows Server Backup, business-continuity planning - Scripting & Tools: PowerShell, Bash, basic Python, Packet Tracer, PuTTY, WinSCP, Git - Soft Skills: Technical support, documentation, project coordination, change management, team leadership Professional Experience System & Network Administrator — AJA Group Holding, Monrovia, Liberia Aug 2022 – May 2025 - Configured and monitored enterprise switches, routers and Wi-Fi (Mikrotik, Cisco, HP, Ubiquiti). - Deployed site-to-site and remote-access VPNs, cutting unauthorized-access incidents by 40%. - Managed Windows Server roles (AD, DNS, DHCP, GPO) and Microsoft 365 for 300+ users. - Implemented Sophos/Cyberoam firewalls; authored and enforced network-security policies. - Administered VMware and Hyper-V clusters; automated VM backup/replication with Veeam. - Led infrastructure upgrades across five sites, reducing unplanned downtime by 25%. Network Administrator — Securitech Liberia, Monrovia, Liberia Jul 2016 – Jul 2022 - Designed and segmented LAN/WAN architecture with VLANs and dynamic routing (OSPF/BGP). - Analyzed traffic via Wireshark/SNMP; tuned QoS to lower average latency by 30%. - Created firewall rules, NAT and port-forwarding supporting 50+ customer-facing apps. - Coordinated quarterly disaster-recovery tests; maintained 100% restore success. - Provided tier-3 support for 300+ Windows and Linux users in HQ and remote branches. Education B.Sc. Computer Science (Evaluated as Equivalent to Canadian Bachelor's) Faculty of Sciences, University of Gabès, Tunisia —- Certifications - CompTIA Network+ (2022) - Fortinet NSE 3 - Linux Essentials - Cyber Threat Intelligence - Windows Server 2019 High Availability - VMware vSphere (ICM) - CCNA – Cisco (2015)