Samuel Osei

SAMUEL OSEI Accra, Ghana |- |- Professional Summary Network & Systems Administrator with 8+ years of hands-on experience managing enterprise networks, datacenter infrastructure, and hybrid IT environments. Skilled in configuring and administering switches, routers, firewalls, Windows Server environments, and cloud-based architectures (AWS). Strong background in network security, backup/restore systems, SD-WAN support, and troubleshooting complex IT/OT issues. Adept at system documentation, infrastructure audits, and delivering high-quality user support. AWS Certified (Solutions Architect – Associate & Cloud Practitioner) with a proven record of enhancing network performance, reliability, and compliance. Core Competencies Network & Infrastructure • • • LAN/WAN Administration | Routing & Switching | Firewall Configuration SD-WAN | Network Monitoring | VPN | VLANs Datacenter Operations | Infrastructure Audits | IT Security Standards Systems & Cloud • • • Windows Server Administration | Active Directory | MS 365 AWS Cloud Architecture | Backup & Recovery | Virtualization Linux/Windows OS Support | Systems Deployment & Hardening Security & Support • • Access Management | Logging & Compliance | Patch Management Technical Documentation | Troubleshooting | User & Helpdesk Support Professional Experience IT Support Engineer mPharma | Accra, Ghana — Feb 2024 – Present • • • • • Maintain and monitor network and computer systems across multiple sites. Troubleshoot network, routing, and connectivity issues to restore service quickly. Support user accounts, access control, and security policy enforcement. Install and configure endpoints, operating systems, and networked devices. Conduct system diagnostics, performance checks, and documentation updates. IT Support Technician Nerd Konnect Company Limited | Kumasi, Ghana — Mar 2023 – Feb 2024 • • • Delivered onsite/remote support for LAN/WAN issues, hardware faults, and software incidents. Performed patching, system updates, and backup checks. Managed documentation of configurations, incidents, and escalations. Infotech Dot Net Systems Limited | Kumasi, Ghana — Oct 2018 – Mar 2023 Operations Manager — Jul 2021 – Mar 2023 • • • Led IT operations, network projects, and datacenter deployments. Oversaw resource planning, infrastructure coordination, and process improvement. Ensured compliance with IT standards, risk reporting, and documentation control. Network Engineer / Systems Deployer — Oct 2018 – Jun 2021 • • • • Designed and implemented secure LAN/WAN infrastructures. Configured routers, switches, and firewalls for enterprise clients. Managed system deployments, server installations, and cloud integrations. Performed vulnerability testing, compatibility checks, and backup configuration. IT Support Technician Smart Space Company Limited | Kumasi, Ghana — Sep 2017 – Sep 2018 • • Provided end-user, network, and hardware support to ensure continuous uptime. Maintained accurate logs, user training materials, and technical reports. IT Support Technician / IT Instructor IPMC | Kumasi, Ghana — Mar 2015 – Aug 2017 • Delivered support for system/network operations. • Instructed students in CompTIA A+ & N+; conducted labs on networking, PC hardware, and troubleshooting. Maintained IT lab infrastructure and performed routine audits. • Education & Certifications • Certified in Cybersecurity (CC) – ISC2 — Ongoing • • • • • • • BSc. Computer Science, University of the People — Ongoing AWS Certified Solutions Architect – Associate, Oct 2024 – Oct 2027 AWS Certified Cloud Practitioner, Oct 2024 – Oct 2027 Google IT Support Professional Certificate, Dec 2023 CISA (Training Program) – University of Ghana, Jul 2022 Advanced Diploma in Systems Engineering, IPMC, Jan 2017 WASSCE, Assin Nsuta SHS, Jun 2011 Languages English, Twi Interests Reading | Movies | Video Gaming References Available upon request.