Tier 3 Infrastructure Engineer

Centurion Growth Recruitment Services; Gauteng; On-site; ZAR 900,000 - 1,200,000; Full time

Job summary

Centurion Growth Recruitment Services in Midrand, Gauteng, South Africa, seeks a Tier 3 Infrastructure Engineer to provide advanced IT infrastructure support across on-premise and cloud environments, focusing on security, virtualization, and high availability.

The role reports to the Operations Manager and requires 10+ years in network and security, with Fortinet, VMware, Windows Server, AD/DNS/DHCP, Linux, backups, and Cloud experience.

Qualifications

• 10+ years' experience in Network & Security across on-premise and cloud environments.
• 5+ years in core areas: firewalls, switches, wireless, Fortigate & Cisco, VPN clients.
• Windows Server 2012+ administration and AD/DNS/DHCP.
• Linux administration experience required.
• Backup and recovery operations experience.
• Prior System Administrator experience preferred.
• Proven ability to administer and configure virtual environments.

Responsibilities

• Provide L2-L3 administration, troubleshooting, and maintenance across Fortinet Firewalls and cloud security.
• Manage routing, switching and wireless networking.
• Maintain VMware vCenter and Hyper-V hypervisors.
• Administer server hardware, storage and AD/DNS/DHCP.
• Oversee Azure, AWS and Google Cloud computing.
• Monitor networks, systems and security events; support SIEM.

Skills

Networking

Security

Virtualization

Cloud computing

SIEM

VPN

Windows Server

Linux

Active Directory

Backup & DR

Education

EC-Council CEH

CompTIA Security+

CISSP

Fortinet FCP

Fortinet FCSS

Tools

Fortinet

VMware vCenter

Hyper-V

VEEAM

Azure

AWS

Google Cloud

SIEM

Job description

Tier 3 Infrastructure Engineer Centurion Growth Recruitment Services-Midrand, Gauteng, South Africa

COMPANY OVERVIEW

Our client is an award-winning holistic technology services company with a focus on extraordinary service delivery with a countrywide presence. They take immense pride in themselves as industry innovators within the I.T. sector. The company has built a supportive corporate culture that recognizes excellence, actively motivates staff to go the extra mile, and encourages teams to take deep pride in everything they do. This focus ensures they consistently manage customer expectations and deliver a world-class customer experience.

Location: Gauteng

Department: Operations

Employment Type: Permanent

Reporting To: Operations Manager

REMOTE: NO

LOCATION: MIDRAND

PURPOSE OF THE POSITION

The Tier 3 Infrastructure Engineer provides advanced technical support and expertise in maintaining, troubleshooting, and optimizing complex IT infrastructure systems. This role involves managing high-level escalations, performing root cause analysis, and implementing solutions for network, server, and storage issues. The engineer will design, deploy, and support infrastructure solutions, ensuring system availability, security, and performance. They will collaborate with cross-functional teams to implement upgrades, support cloud and on-premise systems, and contribute to infrastructure projects. Strong knowledge in networking, virtualization, and enterprise-level systems is essential.

KEY RESPONSIBILITIES

Providing L2-L3 administration, troubleshooting, and maintenance across:

• Fortinet Firewalls, IDS/IPS, VPN, Security appliances & Cloud Security.
• Routing, Switching and Wireless networking.
• VMware vCenter and Hyper-V Hypervisors.
• Server Hardware and components.
• Storage Infrastructure (SAN and vSAN).
• Active Directory / Identity Management Administration.
• Azure, Amazon Web Services (AWS), and Google Cloud computing.
• Network & Systems Monitoring.

Operational Security & Project Execution:

• Managing/maintaining security infrastructure and toolsets, such as Firewalls, Networking equipment, Vulnerability Management systems, SIEM, etc.
• Assisting with IT & Security related projects, rollouts and infrastructure maintenance, including Backups (VEEAM), Business Continuity, and Disaster Recovery.
• Maintaining / improving the security of IT systems through proactive monitoring and event management.
• Analysing / triaging security events and alarms detected by the Security Information and Event Management (SIEM) system.
• Responding to security incidents / threats logged on the service desk and remediating / mitigating where necessary.
• Actioning requests relating to Network, Security & Hyper-V Infrastructure logged on the service desk.
• Assisting with other System Administration as needed.
• Staying up to date with industry trends around cybersecurity and providing input to business regarding improvements, innovations and best practices.
• Assisting with designing, implementing and managing endpoint management and security solutions, i.e. Anti-malware, Antivirus systems, and Mobile Device Management.
• Automation of repetitive tasks.
• Providing technical input into company IT security standards and best practices in alignment with industry recognized standards such as ISO27001 and SOC 2.
• Developing / maintaining security safeguards around the organisation's cloud footprint.
• Training and upskilling junior staff.

JOB REQUIREMENTS & TECHNICAL COMPETENCIES

Preferred Education and Certifications (Verbatim Baseline):

• EC Council CEH / Security + / CISSP
• Fortinet FCP
• Fortinet FCSS

Experience Prerequisites:

• 10+ years' experience within a Network & Security support environment working across network and server infrastructure both on-premise and in the Cloud.
• Minimum of 5 years' core experience is explicitly required in the following frameworks:
  • Network administration and networking support experience for firewalls, switches, Wireless, (Fortigate & Cisco) and VPN client connections.
  • Windows 2012 and newer Server Administration and Active Directory / DNS / DHCP administration.
  • Linux administration.
  • Backup and recovery operations.
  • Prior System Administrator experience.
  • Proven ability to administer and configure Virtual environments.

BEHAVIOURAL COMPETENCIES

• Strong interpersonal skills and the ability to quickly form professional relationships with colleagues and clients at all levels of seniority & problem-solving skills.
• Used to working in a business culture that promotes strict adherence to procedures and controls.
• Display a strong sense of ownership and independent work ethic.
• Process-oriented and structured layout capabilities.
• Customer service orientated with a willingness to engage people and help.
• Be flexible to work shifts depending on company operational requirements.
• Ability to prioritise and coordinate tasks efficiently, ensuring meeting all deadlines.

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