Abel Lema
Dar Es Salaam,Dar Es Salaam
Summary
Proven leader in network administration, adept at enhancing system efficiency and security for Toyota Tanzania Ltd. Excelled in deploying virtualization technologies and managing disaster recovery, showcasing strong decision-making and technical troubleshooting skills. Achieved significant reductions in downtime, demonstrating a commitment to excellence and a results-driven approach.
Business-minded Network Administrator with eight(8) years of experience in supporting server environments,VoIP system, Office 365 tenants management as Global Administrator of nine different tenants,Determined and focused in managing network infrastructure and optimizing environment while reducing redundancy. Considered expert in troubleshooting complex problems and reaching innovative solutions while adhering to rules and requirements of project scope. Dynamic team player when interfacing with other staff members, vendors and end-users.
Overview
8
8
years of professional experience
Work History
Network Administrator Team Lead
Toyota Tanzania Ltd
12.2019 - Current
- Installed, configured and supported local area network (LAN), wide area network (WAN) and Internet system.
- Performed day-to-day LAN and WAN administration, maintenance, and support.
- Identified and immediately resolved issues with network devices.
- Assisted IT staff on troubleshooting issues and closing calls.
- Improved network efficiency by implementing and managing system updates and patches.
- Monitored system performance and responded to alerts.
- Maintained network hardware and software and monitored network to support network availability to end users.
- Enhanced network security through installation, monitoring, and maintenance of firewalls and antivirus software.
- Reduced downtime with proactive identification and resolution of IT issues.
- Managed data backups and disaster recovery operations to comply with business continuity initiatives.
- Deployed virtualization technologies to consolidate resources effectively and reduce overhead expenses associated with physical hardware management.
- Verified continuity of computer and telephone system services for users..
- Established comprehensive network documentation to facilitate rapid issue resolution when troubleshooting problems.
- Managed computer operation scheduling, backup, storage and retrieval functions.
- Spearheaded infrastructure projects from inception to completion, ensuring timely delivery within budget constraints.
Assistant System Administrator
Toyota Tanzania Ltd
11.2016 - 12.2019
- Maintained network security by configuring firewalls, routers, switches, Access Point of different models i.e Ubiquity,Ruckus and Cambium indoor and Outdoor
- Proactiveness of servers physically i.e. monitor server healthy physically e.g. checking if there any amber or red right blinking around the server
- Evaluated new technologies for potential implementation, staying current on industry trends and best practices.
- Conducted thorough performance analysis to identify areas of improvement in existing systems architecture.
- attending call logs as launched by users for IT support
- Managing standalone antivirus server for the KJ Group
- Support and manage Karimjee Family residences and all directors residences
Education
Bachelor of Science in Computer Science - Information Technology, Tanzania
University of Dodoma
Dodoma10.2013
High School -
Kibasila High School
Dar Es Salaam, Tanzania02.2010
Secondary School -
Benjamin William Mkapa Secondary School
Dar Es Salaam, Tanzania10.2007
Skills
- Network Troubleshooting
- System Administration
- Technical Support
- Customer Support
- Network systems installation
- Hardware and software monitoring
- Router Configuration
- Wireless Networking
- Network Security
- Server Management
- VPN Configuration
- Firewall Management
- IP Addressing
- Network Security Management
- Virtualization Technologies
- Network repairs and maintenance
- Data backups
- System Upgrades
- VoIP Systems
- Network Architecture
- Network performance monitoring
- Disaster Recovery
- Switch Configuration
- IP Addressing and Subnetting
- Interpersonal and written communication
- Experience with Office 365,Yeastar S300 IP PBX & Yealink wireless phone, Sophos as Firewall and Anti-malware
- Network Administration
- LAN and WAN control
- Hardware Installation
- Cisco router and switch security
- Technical Troubleshooting
- Hardware knowledge
- User Support
- Team Collaboration
- Decision-Making
- Cloud Management
- Infrastructure Planning
- Self Motivation
- Data Backup
Accomplishments
- Participate fully in migration of mail server from using open source mail server i.e Zimbra to Office 365 without losing mail of the users
- Participate fully in migration of old voice system i.e. Analogy system to VoIP system
- Well understanding of the system used at our hotel(TOH) and managed to figure out the problem that vendor who supplied the product they could not figure out at the TheOverhang of which they declared dead of the machine and left with no choice to management rather than buying new machine end up saving it
- Managed to setup IVR for the KJ Group by myself from the beginning to the end i.e IVR for Hero office and KVCL Business in Yeastar IP PBX integrate Toll Free number with the Yealink GSM Gateway
Timeline
Network Administrator Team Lead
Toyota Tanzania Ltd
12.2019 - Current
Assistant System Administrator
Toyota Tanzania Ltd
11.2016 - 12.2019
Bachelor of Science in Computer Science - Information Technology, Tanzania
University of Dodoma
High School -
Kibasila High School
Secondary School -
Benjamin William Mkapa Secondary School
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