Specialist: IT Network Security

1 week ago

Johannesburg, Gauteng, South Africa Vodafone Full time R900 000 - R1 200 000 per year

When it comes to putting people first, we're number 1.

The number 1 Top Employer in South Africa.

Certified by the Top Employer Institute 2025.

Role Purpose:

To implement, operate, and continuously improve secure, resilient network security controls—including Cisco FTD, Fortinet, Cisco ISE (NAC), VPN, IDS/IPS, and Algosec automation—using SRE principles to ensure availability, compliance, and rapid incident response across enterprise networks

Your responsibilities will include:
  • Design, implement and operate network security services (Cisco FTD/Fortinet firewalls, VPN, Cisco ISE, IDS/IPS).
  • Provide Tier-3 support, incident response, problem management and change approval; participate in 24×7 on-call rota.
  • Run health checks and monitoring; drive continuous improvement (automation, rule hygiene, capacity).
  • Meet compliance (PCI/SOX), manage rule exemptions and cost-effective mitigations using Algosec.
  • Engage stakeholders and vendors; translate Vodafone requirements into effective solutions.
The ideal candidate for this role will have:
  • Matric (Essential)
  • 3 year degree/diploma in Computer Science or related (Essential)
  • 3–5 years in network security engineering/operations. One or more of: Cisco CCNA/CCNP Security (incl. FTD), Fortinet NSE4+, Algosec certification/training.
  • Cisco ISE training, SRE Foundation, ITIL, cloud network security (Advantageous)

Knowledge and experience :

  • Hands-on with Cisco FTD/FMC,
  • Fortinet FortiGate, Cisco ISE (802.1X, posture, TACACS+), VPN (AnyConnect/SSL, IPsec), and IDS/IPS; Algosec for firewall automation & compliance;
  • automation via Python/Ansible/REST;
  • Observability (SNMP, syslog, SIEM/SOAR). SRE practices (SLIs/SLOs, error budgets,
  • Incident Remediation
  • Able to learn & apply Vodafone requirements.

Skills:

  • Analytical troubleshooting
  • stakeholder engagement
  • scripting & automation mindset
  • resilience under pressure
  • clear communication
  • time management

Closing date for Applications: 22 October 2025.

The base location for this role is Midrand, Vodacom Campus.

The company's approved Employment Equity Plan and Targets will be considered as part of the recruitment process. As an Equal Opportunities employer, we actively encourage and welcome people with various disabilities to apply.

Vodacom is committed to an organisational culture that recognises, appreciates, and values diversity & inclusion.

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