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Network Administrator at Sophia ERP Limited (SEL)

Sophia ERP Limited (SEL)
May 14, 2026
Full-time
On-site
Job Summary


We are seeking a skilled and proactive Network Administrator to manage, maintain, and secure the organization's IT infrastructure and network environment.
The ideal candidate will be responsible for ensuring the reliability, performance, and security of network systems, servers, and related technologies, while providing technical support, system administration, software support, and IT training to internal and external users.


Responsibilities
Network & Infrastructure Administration:


Install, configure, manage, and maintain the organization's network infrastructure, including routers, switches, firewalls, wireless access points, and network security systems
Monitor network performance, troubleshoot connectivity issues, and ensure maximum uptime and reliability
Manage LAN/WAN environments, VPN connections, internet services, and wireless network infrastructure
Configure and maintain network security solutions, including firewalls, endpoint protection, access controls, and network monitoring tools
Perform regular network assessments, performance tuning, and capacity planning
Monitor server performance and support server administration tasks, including updates, patch management, and routine maintenance
Implement and maintain backup, disaster recovery, and business continuity procedures
Ensure data security, system integrity, and compliance with organizational IT policies and standards
Maintain and update network diagrams, configurations, inventories, and technical documentation
Manage user accounts, permissions, group policies, and access rights across systems and applications
Support cloud-based and on-premise infrastructure environments where applicable
Coordinate with vendors, internet service providers, and third-party support teams when necessary


Technical Support & Systems Administration:


Provide 1st-level technical support for hardware, software, systems, and network-related issues
Diagnose and resolve network outages, system failures, and user connectivity problems in a timely manner
Install, configure, and maintain desktops, laptops, printers, and peripheral devices
Support system upgrades, software deployments, and infrastructure improvement initiatives
Monitor IT assets, licensing, and system utilization to ensure operational efficiency
Support deployment, maintenance, and troubleshooting of business applications and enterprise systems


Software Application Testing and Training:


Assist in testing software applications and updates before deployment to ensure functionality and compatibility
Document test results, system issues, and resolutions for future reference
Support users during application rollouts and system upgrades
Conduct IT orientation and training sessions for staff on cybersecurity awareness, IT best practices, etc.
Conduct Training on assigned Tech courses during coding bootcamps


Requirements


Bachelor's Degree in Computer Science, Information Technology, Network Engineering, or a related field
1+ years of experience in network administration, systems administration, or IT infrastructure support
Strong understanding of networking concepts, including TCP/IP, DNS, DHCP, VLANs, VPNs, and routing/switching
Experience with network devices such as Cisco, MikroTik, or similar technologies is an advantage
Familiarity with Windows Server, Active Directory, Microsoft 365, virtualization, and backup solutions
Knowledge of cybersecurity principles, firewall management, and endpoint security tools
Experience with network monitoring and troubleshooting tools
Strong analytical, problem-solving, and organizational skills
Excellent communication, documentation, and user support abilities
Relevant certifications such as CCNA, Network+, MCSA, or equivalent are an added advantage
Ability to work independently and manage multiple priorities effectively
Candidate must reside in Lagos; proximity to the island is a plus.