Tier 3 Infrastructure Engineer Full Time

A South African company that provides a range of IT and communication solutions is seeking a highly skilled and experienced Tier 3 Infrastructure Engineer to provide advanced technical support and expertise. In this role, you will be responsible for maintaining, troubleshooting, and optimizing complex IT infrastructure systems.

Responsibilities:

• Provide Advanced Administration and Support: Handle L2-L3 administration, troubleshooting, and maintenance for a wide range of infrastructure components, including:

  • Networking: Fortinet Firewalls, IDS/IPS, VPNs, security appliances, routing, switching, and wireless networking.

  • Virtualization: VMware vCenter and Hyper-V Hypervisors.

  • Systems: Linux, Windows Server (2012+), Active Directory, DNS, and DHCP.

  • Storage: SAN and vSAN storage infrastructure.

  • Cloud: Azure, Amazon Web Services (AWS), and Google Cloud.

• Manage Security Infrastructure: Maintain and improve security with proactive monitoring and event management. This includes managing firewalls, vulnerability management systems, and SIEM.

• Respond to and Remediate Incidents: Analyze and triage security events and alarms detected by the SIEM system. Respond to security incidents and threats logged on the service desk, performing remediation and mitigation as needed.

• Manage IT Projects: Assist with IT and security-related projects, rollouts, and infrastructure maintenance, including backups (VEEAM), business continuity, and disaster recovery.

• Develop and Maintain Security: Provide technical input on company IT security standards in alignment with industry best practices like ISO27001 and SOC 2. Design, implement, and manage endpoint security solutions (e.g., anti-malware, MDM) and safeguards for the organization’s cloud footprint.

• Drive Process Improvement: Identify opportunities for automation of repetitive tasks and contribute to the upskilling and training of junior staff.

• Stay Current: Remain up-to-date with industry trends in cybersecurity, providing input to the business on innovations and improvements.

Certifications required: 

• Microsoft MCSE / Cisco CCNA / VMware

• Linux / Azure / AWS / Google Cloud

• EC Council CEH / Security+ / CISSP

• Fortinet FCP / Fortinet FCSS

Experience Required:

• 10+ years of overall experience in a Network & Security support environment.

• At least 5 years of experience in the following:

  • Network administration and support for firewalls, switches, and wireless (Fortigate & Cisco).

  • Windows Server 2012 and newer administration, including Active Directory.

  • Linux administration.

  • Backup and recovery.

  • Proven ability to administer and configure virtual environments.

NB: Application Deadline is 11th August 2025 

Benefits:

• Competitive salary based on experience (salary can potentially be more based on experience/skills)

IF you meet the above requirements and want to make a career-changing move, apply today by emailing your CV to itcareers@hireresolve.za.com

You can also connect with Daniel on LinkedIn or contact Hire Resolve
If you meet the above requirements we will contact you within 3 working days