The Role
Administer and maintain enterprise network infrastructure across multiple sites, including LAN, WAN, wireless, firewalls, VPNs, proxies, and cabling. Monitor performance and availability, troubleshoot incidents, coordinate vendors and service providers, maintain network documentation, and support upgrades and improvement projects while meeting service-level targets.
Summary Generated by Built In
We are seeking a Senior Network Engineer who will be responsible for the day-to-day operational
administration, availability, performance, and documentation of the network
infrastructure across all sites. This role ensures stable, secure, and
efficient network services while meeting agreed service levels and supporting
business operations.
Responsibilities
Network
Infrastructure Operations
- Perform
day-to-day operational administration of network infrastructure, including: Routers,
switches, and wireless infrastructure.
- Internet
access services.
- Wide
Area Network (WAN) infrastructure and services.
- Local
Area Network (LAN) infrastructure and services.
- Manage
and support:
- DMZ,
firewall, VPN, APN, and proxy infrastructure and services.
- Fixed
infrastructure, including fibre and Ethernet cabling.
- Maintain
and oversee network patch rooms and network-related areas across all Clover
sites
Performance
& Monitoring
- Ensure
system performance and availability targets are met in line with agreed Service
Level Agreements (SLAs).
- Monitor
network infrastructure through the outsourced Network Operations Centre (NOC).
- Proactively
identify and resolve network performance, availability, and security issues.
Vendor
& Stakeholder Management
- Work
closely with third-party service providers to ensure efficient operations and
service delivery.
- Coordinate
with vendors for incident resolution, maintenance, and upgrades.
- Liaise
daily with users and resolve network-related calls and incidents.
Documentation
& Standards
Create, maintain, and update:
Create, maintain, and update:
- Network
architecture diagrams for all Clover installations.
- Logical
network diagrams within the assigned area of responsibility.
- Standard
Operating Procedures (SOPs) within area of responsibility.
- Accurate
and up-to-date documentation for network configurations and processes.
Projects
& Continuous Improvement
- Manage
and participate in small network-related projects within area of responsibility.
- Assist
with network upgrades, changes, and optimisation initiatives.
- Identify
opportunities to improve network reliability, performance, and operational
efficiency.
Qualifications:
- Matric
and National Diploma or Bachelor's Degree in Information Technology.
- Cisco
Certified Network Associate (CCNA)
- Cisco
Certified Network Professional (CCNP)
- CompTIA
Network+
- Fortinet
/ Palo Alto / firewall-related certifications
- ITIL
Foundation
Skills
- Strong
knowledge of enterprise networking (LAN, WAN, wireless).
- Understanding
of firewalls, VPNs, DMZs, and security best practices.
- Experience
working with ISPs and managed service providers.
- Strong
troubleshooting and problem-solving skills.
- Ability
to document technical environments clearly and accurately.
- Good
communication skills with both technical and non-technical users.
Skills Required
- Matric qualification
- National Diploma or Bachelor's Degree in Information Technology
- Cisco Certified Network Associate (CCNA)
- Cisco Certified Network Professional (CCNP)
- CompTIA Network+
- Fortinet, Palo Alto, or firewall-related certification
- ITIL Foundation certification
- Strong knowledge of enterprise LAN, WAN, and wireless networking
- Understanding of firewalls, VPNs, DMZs, and security best practices
- Experience working with ISPs and managed service providers
- Strong troubleshooting and problem-solving skills
- Ability to document technical environments clearly and accurately
- Good communication skills with technical and non-technical users
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The Company
What We Do
Sabenza IT is a niche recruitment company specializing in Information Technology, SAP, Finance, and Engineering roles, with over 23 years of experience.
