Senior Network Infrastructure Specialist

Placements24; Gauteng; Híbrido; ZAR 900.000 - 1.300.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Medical insurance

Retirement plan

Annual leave

Training opportunities

Hybrid work

Descripción de la vacante

Placements24 in Pretoria, Gauteng is seeking a Senior Network Infrastructure Specialist to design, implement, and support an enterprise-grade network. The role covers LAN, WAN, wireless, and security, with a focus on uptime and performance across multiple locations.

The ideal candidate will have 7+ years of hands-on experience, strong routing and switching skills, and familiarity with monitoring tools like SolarWinds and PRTG.

Formación

• Bachelor's degree in CS/IT or related field.
• 7+ years hands-on network design/implementation experience.
• Strong knowledge of routing protocols (OSPF, BGP) and switching (VLANs, STP).
• Experience with SolarWinds, PRTG monitoring.
• Cloud networking familiarity (AWS VPC, Azure VNets) is a plus.
• Excellent problem-solving and communication skills.
• Ability to work in hybrid model.

Responsabilidades

• Design, deploy, and maintain LAN, WAN, and wireless networks.
• Configure, manage, and troubleshoot routers, switches, firewalls, APs from multiple vendors.
• Enforce network security policies, protocols, and best practices.
• Monitor performance, identify bottlenecks, implement speed improvements.
• Plan upgrades and expansions to support business growth.
• Provide Tier 3 support for network incidents and requests.
• Maintain comprehensive network documentation and diagrams.
• Stay current with emerging network technologies and trends.
• Collaborate with IT teams to integrate services.

Conocimientos

Networking expertise

LAN/WAN design

Security protocols

Vendor equipment familiarity

Communication skills

Educación

Bachelor's degree in CS/IT

Herramientas

SolarWinds

PRTG

Cisco devices

Descripción del empleo

About the Role

Our client is seeking a highly experienced Senior Network Infrastructure Specialist to join their forward-thinking IT department in Pretoria, Gauteng . This crucial role involves the design, implementation, management, and support of our client's robust network infrastructure, ensuring optimal performance, security, and reliability. The ideal candidate will possess a deep understanding of enterprise-level networking technologies, including LAN, WAN, wireless, and network security protocols. This position offers a unique opportunity to work with cutting-edge network solutions and contribute to the strategic direction of IT infrastructure. You will be instrumental in maintaining seamless connectivity for all business operations across various locations. The role requires a proactive approach to network monitoring, performance tuning, and incident response, ensuring minimal disruption and maximum uptime.

Key Responsibilities

• Design, deploy, and maintain the company's local area network (LAN), wide area network (WAN), and wireless network infrastructure.
• Configure, manage, and troubleshoot network hardware, including routers, switches, firewalls, and access points from various vendors (e.g., Cisco, Juniper).
• Implement and enforce network security policies, protocols, and best practices to protect against threats and unauthorized access.
• Monitor network performance using specialized tools, identify bottlenecks, and implement solutions to optimise speed and efficiency.
• Plan and execute network upgrades and expansions to support business growth and evolving technological requirements.
• Provide Tier 3 support for network-related incidents and service requests, ensuring timely resolution.
• Develop and maintain comprehensive network documentation, including diagrams, configurations, and procedures.
• Stay current with emerging network technologies and industry trends, and recommend improvements.
• Collaborate with other IT teams to ensure seamless integration of network services with servers, applications, and end-user devices.
• Participate in on-call rotation for emergency network support outside of standard business hours.

Requirements

• Bachelor's degree in Computer Science, Information Technology, or a related field; relevant professional certifications (e.g., CCNA, CCNP, JNCIS) are highly desirable.
• Minimum of 7 years of hands-on experience in network design, implementation, and administration.
• Proven expertise in routing protocols (e.g., OSPF, BGP), switching technologies (VLANs, STP), and network security (firewalls, VPNs).
• Experience with network monitoring and management tools (e.g., SolarWinds, PRTG).
• Strong understanding of TCP/IP, DNS, DHCP, and other network services.
• Experience with cloud networking concepts (e.g., AWS VPC, Azure VNet) is a plus.
• Excellent analytical, problem-solving, and troubleshooting skills.
• Strong communication and interpersonal skills, with the ability to explain technical concepts to non-technical audiences.
• Ability to work effectively both independently and collaboratively in a team environment.
• Demonstrated experience in a hybrid work model environment.

Benefits

• An excellent annual salary package of up to R .
• Comprehensive private medical insurance and retirement plan.
• Generous annual leave and paid sick days.
• Opportunities for advanced training and professional certifications.
• Access to modern office facilities and collaborative workspaces in Pretoria .
• Flexibility to work from home and the office (Hybrid model).
• Exposure to large-scale, complex network environments.