IT/Computer - Other IT/Computer Johannesburg FULL TIME Job Summary 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. Apply for this Job Datafin Recruiter