System Administrator (Abuja)

Responsibilities

• Design, implement, and maintain a robust IT infrastructure, including servers and virtualization platforms
• Administer and optimize Windows Server, Linux systems, and hybrid cloud infrastructures
• Maintain comprehensive system documentation, network diagrams, and Standard Operating Procedures (SOPs)
• Configure, manage, and troubleshoot enterprise networking infrastructure (routers, switches, firewalls, wireless access points)
• Implement and maintain network security protocols, VLANs, VPNs, and network segmentation
• Manage DNS, DHCP, Directory As a Service, and other core network services
• Monitor network performance, analyze bandwidth utilization, and implement Quality of Service (QoS) policies
• Troubleshoot complex network connectivity issues and implement effective solutions
• Develop, implement, and maintain automation scripts (Python, PowerShell, Bash) to streamline repetitive tasks and improve operational efficiency
• Utilize Infrastructure as Code (IaC) tools (e.g., Terraform, Ansible) for consistent and scalable infrastructure deployment
• Build and maintain monitoring and alerting solutions using tools like Prometheus, Grafana, or Nagios
• Automate system provisioning and develop custom scripts for system maintenance and reporting
• Implement and enforce IT security policies, access controls, and data protection measures
• Manage endpoint security solutions and patch management processes
• Manage user authentication systems, including Single Sign-On (SSO), Multi-Factor Authentication (MFA), and privileged access management
• Respond to and manage security incidents, implementing established incident response procedures
• Plan and execute comprehensive onboarding procedures for new employees, ensuring a seamless first-day experience
• Configure, deploy, and manage workstations (laptops, tablets) and company-approved software across Windows, macOS, Linux, iOS, and Android platforms
• Provision user credentials, configure VPN clients, shared drives, and ensure security compliance for all new user accounts
• Implement and manage Mobile Device Management (MDM) solutions for corporate smartphones and tablets
• Manage user offboarding procedures, including account deactivation, data backup, and equipment retrieval
• Provide expert-level technical support to end-users, ensuring timely resolution and minimal disruption (L2/L3 support)
• Manage user accounts, permissions, and access controls across all corporate platforms
• Manage IT assets, including inventory tracking, lifecycle management, and procurement coordination
• Respond to and resolve help desk tickets efficiently, managing ticketing systems (e.g., Jira Service Management) and maintaining SLA compliance
• Perform remote troubleshooting and support using standard tools (TeamViewer, AnyDesk)
• Perform regular system updates, patches, security hardening, and troubleshooting of complex system errors
• Plan and execute system upgrades with minimal downtime
• Optimize system configurations for performance, reliability, and cost efficiency, maintaining high availability and redundancy across critical systems

Requirements

• Bachelor's degree or diploma in Computer Science, Information Technology, Engineering, or a related field
• Minimum 3-5 years of proven experience in system administration, IT support, or network administration roles
• Relevant industry certifications (e.g., CompTIA, Cisco, Microsoft, Linux/Cloud platforms) are highly desirable
• Advanced proficiency in Active Directory or a Directory as a Service (DaaS) system (e.g., Jumpcloud)
• Strong Linux/Unix administration skills (RHEL, CentOS, Ubuntu, Debian)
• Experience with macOS management and mobile device platforms (iOS, Android)
• Deep understanding of TCP/IP, routing protocols (BGP, OSPF), switching, and network architecture
• Hands-on experience with enterprise networking equipment (e.g., Cisco, Ubiquiti)
• Experience with network monitoring and troubleshooting tools
• Proficient in scripting languages: Python, PowerShell, Bash
• Experience with configuration management tools (e.g., Ansible)
• Experience with Infrastructure as Code (Terraform)
• Experience with endpoint management tools and Mobile Device Management (MDM) platforms
• Familiarity with monitoring and alerting tools (e.g., Nagios, Prometheus, Grafana)
• Experience with ticketing systems (e.g., Jira Service Management)
• Familiarity with cloud and on-premise productivity suites (e.g., Google Workspace)
• Exceptional analytical and problem-solving abilities with a systematic troubleshooting approach
• Excellent verbal and written communication skills; ability to explain technical concepts clearly to non-technical users
• Strong documentation skills and meticulous attention to detail
• Proven ability to work independently and collaboratively in a team environment
• Effective time management and ability to prioritize tasks in fast-paced, high-pressure environments
• Strong customer service-oriented mindset and professional demeanor
• Commitment to continuous learning and adaptability to new technologies
• Occasional weekend or after-hours work to perform system maintenance, upgrades, and respond to critical incidents
• Physical requirements may include lifting equipment up to 50 lbs

Benefits

• Culture that puts people first and prioritizes the well-being of every team member
• Learning and development-focused environment with an emphasis on knowledge sharing, training, and regular internal technical talks
• Attractive salary, pension, and health insurance