Network & Infrastructure Engineer

Job title : Network & Infrastructure Engineer

Job Purpose

• The Network & Infrastructure Engineer is responsible for designing, implementing, securing, and maintaining the organization’s network and IT infrastructure across distributed environments.
• The role focuses on LAN/WAN connectivity, wireless infrastructure, firewalls, VPNs, switches, access points, servers, cloud platforms, and enterprise hardware infrastructure. The position also supports systems administration, IT operations, infrastructure security, business continuity, and end-user support to ensure reliable and secure technology operations across the organization.

Key Responsibilities
Network Architecture & Infrastructure Management:

• Design, implement, monitor, and maintain enterprise network infrastructure including LAN, WAN, Wi-Fi, VPN, VLANs, and distributed office connectivity.
• Configure and manage routers, switches, firewalls, wireless controllers, and access points.
• Design scalable and secure network architecture for distributed and multi-site environments.
• Manage network segmentation, bandwidth optimization, redundancy, failover, and high availability.
• Monitor network performance, uptime, and traffic utilization.
• Troubleshoot network connectivity, latency, routing, and infrastructure issues.
• Coordinate ISP connectivity, leased lines, and internet redundancy solutions.
• Maintain structured cabling and physical network infrastructure standards.

Systems & Infrastructure Administration:

• Manage physical and virtual servers (on-premise and cloud-hosted).
• Administer Windows/Linux environments, Active Directory, DNS, DHCP, VPN, and access controls.
• Manage virtualization platforms such as VMware or Hyper-V.
• Ensure regular system patching, firmware upgrades, backups, and infrastructure maintenance.
• Monitor infrastructure health, storage capacity, and system performance.
• Maintain company hardware infrastructure including servers, laptops, desktops, printers, biometric devices, UPS systems, and related IT equipment.

Email, Domain & Cloud Services:

• Administer company domains, DNS records, MX records, SSL certificates, and email services.
• Manage Microsoft 365, SharePoint, OneDrive, Teams, and related collaboration platforms.
• Manage email accounts, permissions, and security policies.
• Support hybrid cloud connectivity and secure remote-access infrastructure.
• Ensure proper data synchronization, storage, and access control.

Security & Firewall Administration:

• Configure and manage firewalls, VPN gateways, endpoint protection, and network security controls.
• Implement network access control, segmentation, and security hardening practices.
• Monitor systems and infrastructure for cyber threats, vulnerabilities, and unauthorized access attempts.
• Ensure endpoint protection, antivirus updates, and firewall configurations are maintained.
• Conduct periodic security assessments, backup verification, and disaster recovery testing.
• Ensure compliance with IT security policies and infrastructure standards.

User Support & IT Operations:

• Provide Level 1 and Level 2 technical support for network, infrastructure, hardware, and systems issues.
• Support staff on hardware, software, email, and connectivity-related issues.
• Maintain IT asset inventory, warranty records, and infrastructure documentation.
• Support onboarding/offboarding activities including device provisioning and access management.
• Coordinate hardware procurement, replacement, and maintenance activities.
• Maintain accurate inventory of IT equipment and software licenses.

Documentation & Compliance:

• Maintain network diagrams, IP addressing schemes, topology documentation, and infrastructure inventory.
• Maintain up-to-date documentation of IT systems, configurations, and operational procedures.
• Prepare infrastructure reports, incident reports, and capacity planning recommendations.
• Document standard operating procedures (SOPs), backup procedures, and disaster recovery processes.
• Support compliance with data protection, information security, and regulatory requirements.

Collaboration & Continuous Improvement:

• Work closely with the Technology team on infrastructure upgrades, deployments, and system improvements.
• Identify opportunities for automation, optimization, and cost efficiency.
• Provide recommendations to management on infrastructure scalability, performance, and security improvements.
• Support implementation of enterprise technology initiatives and operational best practices.

Key Performance Indicators (KPIs)

• Network uptime and availability.
• Incident response and resolution time.
• Infrastructure security compliance.
• Firewall and VPN reliability.
• Successful backup and disaster recovery validation.
• User support responsiveness.
• Infrastructure documentation accuracy.
• Hardware and asset management efficiency.

Qualifications & Experience
Education:

• Bachelor’s Degree in Computer Science, Information Technology, Network Engineering, or a related field.

Experience:

• 4–7 years’ experience in enterprise network engineering and systems administration.
• Hands-on experience managing LAN/WAN infrastructure, firewalls, switches, routers, and wireless networks.
• Experience supporting distributed or multi-site environments.
• Experience with Microsoft 365, Active Directory, virtualization, and cloud platforms.
• Experience configuring enterprise-grade networking equipment such as Cisco, Fortinet, MikroTik, Ubiquiti, Aruba, or similar.

Certifications (Advantage):

• Cisco CCNA / CCNP
• Fortinet NSE
• CompTIA Network+
• Microsoft Certified: Azure Administrator
• Ubiquiti / Aruba certifications

Skills & Competencies:

• Strong understanding of TCP/IP, VLANs, routing, switching, DNS, DHCP, VPN, and firewall technologies.
• Experience with enterprise switches, routers, access points, and wireless infrastructure.
• Network monitoring and troubleshooting expertise.
• Firewall and infrastructure security administration.
• Systems administration (Windows/Linux Server).
• Cloud and Microsoft 365 administration.
• Backup and disaster recovery management.
• Infrastructure documentation and topology management.
• Strong analytical and problem-solving skills.
• Attention to detail and operational discipline.
• Strong communication and user-support capability.

Behavioral Attributes:

• High integrity and confidentiality awareness.
• Proactive and solution-oriented mindset.
• Ability to work independently and under pressure.
• Strong time management and prioritization skills.
• Strong ownership and accountability mindset.

Work Environment:

• Strategic and collaborative technology environment.
• Involvement in high-impact, group-wide technology initiatives.
• Opportunities for leadership growth and influence across the Barnksforte Group.