Tier 3 Infrastructure Engineer

An established IT company based in Midrand, Gauteng is seeking a highly skilled Tier 3 Infrastructure Engineer to join their team. The Tier 3 Infrastructure Engineer will be responsible for providing advanced technical support and expertise in maintaining, troubleshooting, and optimizing complex IT infrastructure systems. This includes managing high-level escalations, conducting root cause analysis, and implementing solutions related to network, server, and storage issues. Responsibilities: Provide L2-L3 administration, troubleshooting, and maintenance of: Firewalls, IDS/IPS, VPNs, security appliances, and cloud security solutions Routing, switching, and wireless networking VMware vCenter and Hyper-V hypervisors Server hardware and components Storage infrastructure (SAN and vSAN) Linux and Windows systems administration Active Directory and identity management Cloud platforms including Azure, AWS, and Google Cloud Monitor network and systems performance Manage and maintain security infrastructure and tools such as firewalls, vulnerability management systems, and SIEM Assist with IT and security-related projects, including backups, business continuity, and disaster recovery Proactively monitor IT system security and respond to security events and incidents Analyze and triage security events from SIEM tools Respond to and remediate security incidents and threats reported via service desk Handle requests related to network, security, and hypervisor infrastructure Assist with additional system administration tasks as needed Stay current on cybersecurity trends and provide recommendations for improvements and best practices Help design, implement, and manage endpoint security solutions such as anti-malware, antivirus, and mobile device management Automate repetitive tasks where possible Provide technical input for IT security standards aligned with industry frameworks such as ISO 27001 and SOC 2 Develop and maintain security safeguards for the organizations cloud environments Train and upskill junior staff Requirements: Microsoft MCSE, Cisco CCNA, VMware certifications Linux, Azure, AWS, or Google Cloud certifications EC Council CEH, Security, CISSP Fortinet FCP, FCSS 10 years experience in network and security support across on-premise and cloud environments Minimum 5 years experience with: Network administration and support for firewalls, switches, wireless (Fortinet & Cisco), and VPN clients Windows Server 2012 and Active Directory/DNS/DHCP administration Linux system administration Backup and recovery solutions Virtual environment administration and configuration How To Apply: Contact Hire Resolve today for your next career-changing move Our client is offering a highly competitive salary for this role based on experience. Send your CV to: itcareers@hireresolve.za.com or connect with Mischa Bornman via LinkedIn. Alternatively, you can also contact me directly at Hire Resolve mischa.bornman@hireresolve.us We will contact you telephonically in 3 days should you be suitable for this vacancy. If you are not suitable, we will put your CV on file and contact you regarding any future vacancies that arise.

Location: Midrand, Gauteng, ZA

Posted Date: 8/16/2025