Senior Infrastructure Engineer

Ntt Data; South Africa; On-site; ZAR 700,000 - 1,000,000; Full time

Job summary

NTT Data seeks a Senior Infrastructure Engineer to design, implement, and support a multinational infrastructure landscape. You will secure and optimise on-premises and cloud resources while guiding a team across multiple sites.

Responsibilities include managing Windows Server, AD, M365, FortiGate, and CrowdStrike, plus driving disaster recovery, automation, and cost-efficiency improvements in a dynamic enterprise environment.

Qualifications

• 7+ years of experience in Infrastructure Engineering.
• 3+ years in a senior engineering or technical leadership role.
• Experience supporting multi-site environments, including BPO/Contact Centre or Financial Services.
• Experience leading cloud migration projects.
• Experience implementing cybersecurity frameworks and controls.

Responsibilities

• Design, administer, support, secure and improve infrastructure to ensure security, availability and scalability.
• Manage Windows Server, AD, DNS, DHCP, Group Policy, Hyper-V and VMware/HCI platforms.
• Oversee backup, DR, and business continuity planning across sites.
• Lead initiatives in cloud, automation and cost optimisation.
• Provide Tier 3 escalation guidance and mentor junior engineers.

Skills

Windows Server

Active Directory

DNS

DHCP

Group Policy

Hyper-V

VMware

Storage Solutions

Microsoft 365

SCCM

Intune

CrowdStrike

Zero Trust Principles

Education

Degree or Diploma in Information Technology/Computer Science/Information Systems

Matric

Tools

FortiGate

SCCM

Intune

VMware vSphere

Microsoft 365 Admin Center

Azure

Job description

The Senior Infrastructure Engineer is responsible for the design, administration, support, security, and continuous improvement of the organization's infrastructure environment. This role ensures that all infrastructure services remain secure, available, resilient, and scalable to meet current and future business requirements.

Responsibilities

Infrastructure Operations

• Administer and maintain Windows Server environments.
• Manage virtualization platforms including VMware and/or Hyper-V.
• Support enterprise storage solutions and backup platforms.
• Maintain Microsoft Active Directory, DNS, DHCP, Group Policy, and Identity Services.
• Monitor infrastructure performance and capacity.
• Perform patch management and system upgrades.
• Ensure infrastructure availability and operational stability.
• Troubleshoot and resolve complex infrastructure incidents.
• Manage Microsoft 365 services including:
• Exchange Online
• SharePoint Online
• Teams
• OneDrive
• Support hybrid cloud and hybrid identity solutions.
• Implement and maintain Microsoft Intune and endpoint management solutions.
• Manage cloud governance, security, and cost optimization initiatives.

Network & Connectivity Management

• Manage and maintain:
• FortiGate Firewalls
• Core Switching
• Wireless Infrastructure
• VPN Services
• WAN Connectivity
• Internet Services
• Ensure secure and reliable communication between business sites.
• Support network monitoring and performance optimization.
• Lead network troubleshooting and root cause analysis.

Cybersecurity

• Implement infrastructure security best practices.
• Manage endpoint protection solutions such as CrowdStrike.
• Support vulnerability management and remediation programs.
• Conduct security reviews and risk assessments.
• Support compliance and audit requirements.
• Participate in security incident investigation and response.
• Drive continuous improvement of the organization's cybersecurity posture.

. Business Continuity & Disaster Recovery

• Ensure backup solutions are functioning correctly.
• Manage and maintain disaster recovery environments.
• Conduct periodic recovery testing.
• Document recovery procedures and business continuity plans.
• Ensure critical business applications can be restored within agreed recovery objectives.

Projects & Continuous Improvement

• Lead and deliver infrastructure-related projects.
• Plan and execute:
• Cloud migrations
• Platform consolidations
• Security improvements
• Develop automation initiatives to improve operational efficiency.
• Identify opportunities for cost optimization and service improvements.

Technical Leadership

• Act as Tier 3 (T3) escalation point for complex technical issues.
• Mentor and coach junior infrastructure engineers.
• Define infrastructure standards and operational procedures.
• Review technical designs and implementation plans.
• Contribute to architectural and strategic technology decisions.
• Drive implementation of best practices across the IT environment.

BPO-Specific Accountabilities

The Senior Infrastructure Engineer will be responsible for:

• Active Directory and identity services across all sites.
• Microsoft Azure and Microsoft 365 administration.
• FortiGate firewall administration and WAN connectivity.
• Microsoft SCCM and Intune endpoint management.
• CrowdStrike administration and security monitoring.
• Disaster Recovery and Business Continuity Planning.
• Infrastructure resilience across multiple business locations.
• Ensuring business operations can continue from alternative sites during outages or disasters.
• Supporting high-availability environments for contact center operations.

Qualifications

• Matric and a Degree or Diploma in Information Technology, Computer Science, Information Systems, or related field.
• Microsoft, Azure, VMware, or networking certifications.

Certifications

• Microsoft Certified: Azure Solutions Architect Expert
• Fortinet NSE / FortiGate Certifications
• VMware VCP
• ITIL Foundation
• CISSP, Security+, or equivalent security certification

Experience

• 7+ years' experience in Infrastructure Engineering.
• 3+ years in a senior engineering or technical leadership role.
• Experience supporting enterprise infrastructure environments.
• Experience in multi-site operations.
• Experience within a BPO, Contact Centre, Financial Services, or Managed Services environment.
• Experience leading cloud migration projects.
• Experience implementing cybersecurity frameworks and controls.

Skills

Infrastructure

• Windows Server
• Active Directory
• DNS
• DHCP
• Group Policy
• Hyper-V
• VMware
• Storage Solutions

Cloud

• Microsoft 365

Networking

• FortiGate
• LAN/WAN
• VPN
• SD-WAN
• Wireless Technologies
• Network Monitoring Tools
• SCCM

Security

• CrowdStrike
• Vulnerability Management
• Security Monitoring
• Zero Trust Principles

Senior Infrastructure Engineer KZN, South Africa