Johannesburg: Senior Network Engineer posted by Datafin

October 17, 2025 Jobs in Central Johannesburg

Job Description

Senior Network EngineerEngineering/Technical
Johannesburg – Gauteng – South Africa

ENVIRONMENT:

A forward-thinking Digital Solutions Provider is on the hunt for a talented Network Engineer to join their Johannesburg team. This isnt just about keeping the lights onits about building next-gen network infrastructure that drives innovation and empowers customers. Youll design, implement, and maintain cutting-edge systems that support growth and reliability, bringing your 5+ years of network engineering experience (including 2 in a specialist role) and a solid foundation in IT or Computer Science to a team thats shaping the future of digital connectivity.

DUTIES:

Network Design and Implementation: Design and deploy robust networking solutions that meet the businesss scalability, performance, and security requirements.
Maintenance and Optimization: Regularly assess network performance, troubleshoot complex network issues, and ensure continuous network availability.
Security Management: Implement and manage network security tools and protocols, such as firewalls, VPNs, and intrusion detection systems.
Project Management: Lead network-related projects from conception through to completion, including planning, execution, and resource allocation.
Capacity Planning: Analyze and predict network growth trends to ensure infrastructure scalability and performance.
Mentorship and Leadership: Mentor junior network engineers, promoting a culture of continuous learning and development within the team.
Vendor Management: Negotiate with vendors to procure network hardware and software solutions that align with business objectives
Documentation and Compliance: Maintain comprehensive documentation for network architectures, configurations, processes, and compliance records

REQUIREMENTS:

Technical Competencies Behavioural competencies

Risk management
Financial analysis (exposure)
External financial and regulatory reporting systems, processes, and internal controls
Fraud prevention, detection, investigation

Qualifications Experience

3 years Bachelors degree in Computer Science, Information Technology, or a related field
Minimum of 5 years’ experience in network engineering with at least 2 years in a specialist role.

Certifications and Licenses

Cisco Certified Network Professional (CCNP)
Managing and supporting a Multi-Pod ACI Fabric (two interconnected Data Centres)
ACI design and configuration
APIC Controller management (a cluster of 3 controllers)
Support and Maintenance of over ACI devices (includes Spine switches, Leaf Switches)
Sever migration to ACI major projects for new customer requirements
ACI firmware upgrades
Ability to automate using tools
VxLAN deployment and troubleshooting
Certified Information Systems Security Professional (CISSP)
Juniper Networks Certified Enterprise Routing and Switching Expert (JNCIE-ENT)
Cisco Certified Design Expert (CCDE)
Juniper Networks Certified Design Associate (JNCDA)
VMware Certified Advanced Professional Network Virtualization Design (VCAP-NV Design)
Cisco Certified Network Professional Wireless (CCNP Wireless)
HPE Aruba Certified Design Professional (ACDP)
HPE Aruba Certified Design Expert (ACDX)
Aruba Certified Mobility Expert (ACMX)
HPE Aruba Networking Certified Professional Data Center
Certified Wireless Design Professional (CWDP)
Certified Network Defender (CND)
CompTIA Network+ for foundational networking knowledge.
VMware Certified Professional Network Virtualization (VCP-NV) for skills in managing VMwares NSX virtual networking platform.
Aviatrix Certified Engineer Multicloud Network Professional (ACE Professional)