Lentiti Mareli
Maseru
Summary
Experienced in system administration with a focus on network troubleshooting and security management. Demonstrated ability to implement infrastructure solutions, manage backups, and provide user support while maintaining system performance. Proficient in both Windows and Linux environments, with skills in virtual machine creation and hardware maintenance. Successfully managed software installations, patch management, and data security protocols to ensure optimal system functionality.
Overview
24
24
years of professional experience
Work History
Systems Administrator
Lesotho Highlands Water Commission
Maseru
05.2015 - Current
- Performed preventive maintenance and upgraded systems to improve network, system, and data availability and integrity.
- Increased system security and performance with proactive changes.
- Consulted users to determine areas in need of improvement.
- Coordinated with vendors and company personnel to facilitate purchases.
- Participated in projects related to new infrastructure implementations or migrations from legacy platforms.
- Kept systems operating efficiently by performing necessary upgrades and repairs.
- Analysed equipment performance records to determine the need for repair or replacement.
- Diagnosed, troubleshooted and resolved hardware and system problems.
- Managed user accounts in AD, ensuring users have appropriate access rights.
- Implemented network services such as DHCP, DNS, Active Directory and Group Policy Objects.
- Reviewed audit reports generated by security software applications for compliance purposes.
- Configured advanced firewall rules to ensure secure communication between internal networks and external entities.
- Decreased spam with firewall filtering and real-time spam black lists for incoming emails.firewall
- Kept flexible schedule and resolved after-hours and weekend emergencies quickly and accurately.
- Performed daily backup operations on the critical systems
- Installed security software to protect networks.
- Maintained hardware inventory of all physical assets in the data centre.
- Monitored systems performance to identify potential issues and provided solutions as needed.
- Created virtual machines using the Proxmox platform for testing production purposes.firewall
- Provided technical support to end-users across the organisation with IT-related issues and queries.
- Provided technical support for voice services and equipment.
- Managed, troubleshot, backed up and restored data, operating systems, files, documents and drivers to provide comprehensive systems management and support.
- Troubleshot networking connectivity issues within LAN and WAN environment utilizing packet sniffers such as Wireshark or tcpdump tools.
- Analyzed log files from various sources such as application logs, system logs or firewall logs to detect any suspicious activity or potential threats.
- Installed, configured, maintained and administered multiple operating systems including Windows Server 2008, 2012, 2016, Linux Ubuntu and Red Hat Enterprise.
- Submitted recommendations regarding infrastructure overhauls.
- Upgraded existing hardware components when necessary to improve system efficiency.
- Configured, monitored and maintained email applications or virus protection software.
- Completed routine maintenance and repair.
- Managed inventory and supplies to ensure materials were available when needed.
- Managed household errands and other essential duties.
Senior IT Support/Technician
Comnet Lesotho
Maseru
03.2004 - 04.2015
- HP ProLiant Server contracts and server warranty in Lesotho are responsible for HP contract services, such as Vodacom Lesotho HP servers, and Revenue Services Lesotho HP SAN storage on SLA.
- Responded promptly to customer inquiries regarding product features or services offered by the company.
- Guided customers through step-by-step solutions, clearly and concisely.
- Diagnosed system errors and troubleshoot technical issues for clients.
- Performed routine maintenance and software updates on support tools and customer systems.
- Monitored the performance of computer systems regularly to ensure they are running optimally.
- Conducted routine maintenance on servers and systems, keeping networks fully operational during peak periods.
- Resolved network connectivity problems for customers utilizing various networking protocols.
- Installed, configured and maintained hardware and software components of computer systems.
- Configured user accounts, passwords, file permissions, and email accounts as needed for client use.
- Resolved customer problems via phone, email, and chat, ensuring timely and effective solutions.
- Performed a variety of clerical and administrative duties about on-site support.
- Provided technical support to customers via phone, email and remote access applications.
Computer Technician
United INDUSTRUAL Pty(LTD)
Maseru
02.2001 - 02.2004
- Troubleshoot complex technical problems related to hardware components, operating systems, and applications.
- Configured computers to network drivers and connected to printers and other peripheral equipment.
- Diagnosed issues with existing computer systems and identified solutions to resolve them.
- Troubleshoot devices to identify and solve issues with hardware or software performance.
Education
Fundamental of Network Security
Alison Online Course
05-2014
Diploma
Executive School For Computers
Elma Park, Edenvale, Gauteng02-1999
Cert-Designing And Implementing Tele Networks
Unisa University
Preroia South AfricaSkills
- Log analysis
- System administration
- Network troubleshooting
- Security management
- Backup management
- User support
- Hardware maintenance
- Virtual machine creation
- Performance monitoring
- Infrastructure implementation
- Problem solving
- Windows administration
- Storage management
- Troubleshooting and diagnosis
- Software installation
- Patch management
- Data security
- Microsoft Office Suite
- Remote Access technologies
- PC diagnostics
- Server hardware
- Active directory
- Network performance monitoring
- Technical support
- Scripting languages
- Program installations
- Linux administration
- Network protocols
- Email administration
- Network administration
- Threat assessment
- Backup solutions
- System upgrades
- Firewall configuration
- OSPF routing
- VPN configurations
- Server improvements
- Hardware expertise
- Server and system administration
- System performance monitoring
- Performance analysis
- Group policy management
- Virtualization technologies
- User access management
Timeline
Systems Administrator
Lesotho Highlands Water Commission
05.2015 - Current
Senior IT Support/Technician
Comnet Lesotho
03.2004 - 04.2015
Computer Technician
United INDUSTRUAL Pty(LTD)
02.2001 - 02.2004
Fundamental of Network Security
Alison Online Course
Diploma
Executive School For Computers
Cert-Designing And Implementing Tele Networks
Unisa University
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