Senior Network Engineer (DC)

Datafin; Johannesburg; On-site; ZAR 900,000 - 1,100,000; Full time

Job summary

A digital solutions provider in Johannesburg is seeking a Senior Network Engineer to design and optimize network infrastructure. The ideal candidate will have over 5 years of network engineering experience, including expertise in Cisco ACI and security management. Responsibilities include architecting robust networking solutions, leading projects, and mentoring junior engineers. This role offers an opportunity to drive innovation and scalability in a fast-paced environment.

Qualifications

• Minimum of 5 years experience in network engineering, with at least 2 years in a specialist capacity.
• Proven expertise in Cisco ACI design, configuration, and troubleshooting.
• Experience supporting large-scale data centres and complex enterprise networking environments.

Responsibilities

• Architect and deploy robust networking solutions that meet performance requirements.
• Monitor performance, troubleshoot issues, and ensure continuous uptime.
• Lead end-to-end network projects from planning to delivery.

Skills

Network Design & Implementation

Cisco ACI

Security Management

C# and ASP.NET

Troubleshooting VxLAN networks

Education

3-year Bachelor's degree in Computer Science or IT

Tools

Cisco ACI

VMware

Intrusion detection systems

Job description

Senior Network Engineer (DC)Engineering/Technical
Johannesburg - Gauteng - South Africa

ENVIRONMENT

Join a forward-thinking Digital Solutions Provider as a Senior Specialist: Network Engineer in Johannesburg. This isnt just about keeping the lights on its about building and maintaining next-gen network infrastructure that drives innovation, resilience, and scalability. Youll play a key role in designing, implementing, and optimising network systems while ensuring security and reliability for business-critical operations. With your strong technical foundation, 5+ years of network engineering experience (at least 2 in a specialist role), and deep knowledge of Cisco, ACI, and related technologies, youll be part of a team shaping the future of digital connectivity.

DUTIES

• Network Design & Implementation: Architect and deploy robust networking solutions that meet performance, security, and scalability requirements.
• Maintenance & Optimisation: Monitor performance, troubleshoot issues, and ensure continuous uptime.
• Security Management: Implement and manage firewalls, VPNs, intrusion detection, and other security protocols.
• Project Leadership: Lead end-to-end network projects from planning to delivery, managing timelines and resources.
• Capacity Planning: Analyse growth trends to anticipate future requirements and scale infrastructure.
• Mentorship: Support and guide junior engineers, fostering knowledge sharing and continuous improvement.
• Vendor & Stakeholder Management: Collaborate with vendors and negotiate for hardware/software solutions aligned with business goals.
• Documentation & Compliance: Maintain accurate documentation and ensure alignment with regulatory and audit requirements.

REQUIREMENTS

• 3-year Bachelors degree in Computer Science, IT, or related field.
• Minimum of 5 years experience in network engineering, with at least 2 years in a specialist capacity.
• Proven expertise in Cisco ACI design, configuration, and troubleshooting (multi-pod fabric, APIC management, firmware upgrades).
• Strong experience with C#, ASP.NET, SQL, and automation tools to enhance efficiency.
• Ability to troubleshoot and deploy VxLAN networks.
• Experience supporting large-scale data centres and complex enterprise networking environments.

CERTIFICATIONS (advantageous)

• Cisco Certified Network Professional (CCNP) or CCIE.
• Certified Information Systems Security Professional (CISSP).
• Cisco Certified Design Expert (CCDE).
• VMware VCP-NV or VCAP-NV Design.
• Aruba ACMX / Certified Wireless Design Professional (CWDP).
• CompTIA Network+.
• Certified Network Defender (CND).

ATTRIBUTES

• Strong analytical and problem-solving skills with attention to detail.
• Resilient, self-driven, and results-oriented.
• Ability to lead, mentor, and collaborate effectively across teams.
• High integrity and professionalism with excellent communication skills.

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