Information Technology Infrastructure Specialist

Key Recruitment Group; Cape Town; On-site; ZAR 1,532,000 - 2,080,000; Full time

Job summary

Key Recruitment Group is seeking an experienced L3 Engineer to support a prestigious London-based client with enterprise IT infrastructure. You will act as the go-to technical expert, handling complex issues and leading critical projects across Windows, Linux, VMware, Citrix, and security realms.

Role involves IT optimization, automation, and strategy execution, mentoring junior engineers, and delivering robust, scalable IT solutions in a high-pressure environment.

Qualifications

• 7+ years of enterprise IT support and infrastructure engineering.
• Strong experience with Windows Server, Linux, VMware, Citrix, M365, and Entra AD.
• Knowledge of backup, DR, and security tooling (Veeam, Darktrace, Zscaler, CrowdStrike).
• DevOps, scripting (PowerShell, Python) and automation skills.

Responsibilities

• Provide advanced technical support and troubleshooting as escalation point.
• Lead RCA for high-impact incidents and implement long-term fixes.
• Oversee virtualization, backup, storage, and disaster recovery environments.
• Architect secure, scalable IT solutions with network integration.
• Mentor L1/L2 engineers and drive IT optimization initiatives.
• Collaborate with senior leadership to shape IT strategy.

Skills

Advanced IT support

Enterprise IT

Windows Server

Linux

VMware

Citrix

M365

Azure AD

SQL

DevOps

PowerShell

Python

Automation

Leadership

Education

MCSE

VCP

CCNP

Citrix CCE-V

ITIL

Veeam VMCE

Tools

Veeam

VMware ESX

vCenter

Citrix XenApp/XenDesktop

Netscaler

RSA

FSLogix

Darktrace

Zscaler

CrowdStrike

ServiceNow ITSM

GitHub / GitLab

Azure DevOps

PowerShell

Python

Job description

Our client is a global leader in IT services and technology, headquartered in the UK with 25+ years of industry expertise. They specialize in experience-led IT solutions, pushing boundaries to challenge traditional IT approaches and drive innovation. With operations in the USA, South Africa, Sri Lanka, Malaysia, and Macedonia, they deliver market-leading managed services, Microsoft-centric business software, and cloud solutions to 300+ ambitious mid-market organizations.

They’re looking for an exceptional L3 Engineer—a problem-solver, strategic thinker, and hands-on expert to provide advanced technical support, infrastructure management, and IT strategy execution for a prestigious London-based client.

As an L3 Engineer, you’ll be the go-to technical expert, handling the most complex challenges and leading critical infrastructure projects. You’ll drive IT optimization, automation, and strategic improvements, ensuring seamless operations in a high-pressure, business-critical environment.

What You’ll Do:

• Advanced Technical Support & Troubleshooting
• Act as the final escalation point for complex IT issues and critical system failures.
• Perform deep-dive troubleshooting across Windows, Linux, VMware, Citrix, M365, Azure AD, SQL, and DevOps environments.
• Lead root cause analysis (RCA) for high-impact incidents, implementing long-term solutions.
• Optimise and troubleshoot enterprise mobility (Ivanti Neurons, UEM, UMS, iPads, tablets).
• Mentor and support L1/L2 engineers, sharing expertise and best practices.
• Manage and optimise Windows Server (2016, 2019, 2022), Linux, Active Directory, Exchange (2016/2019/Online), and SharePoint (2016/Online).
• Oversee and enhance virtualization platforms (VMware ESX, vCenter, Citrix XenApp/XenDesktop, Netscaler, RSA, FSLogix).
• Architect and maintain backup & disaster recovery solutions (Veeam Backup, Replication, iLand, Veeam One, Veeam Monitor).
• Configure and manage SANs, HP Servers, replication, UPS, and high-availability environments.
• Deploy and utilise PRTG Enterprise Monitoring to improve incident management and system optimization.
• Lead network troubleshooting and optimization (DNS/DHCP, routing, switching, Meraki, SilverPeak, VPNs, VoIP, Brocade Fibre, Palo Alto, HPE, Cisco).
• Strengthen enterprise security policies, ensuring firewall, VPN, and cloud security best practices.
• Collaborate with network architects to design and implement secure, scalable IT solutions.
• Deploy and optimise security solutions with Darktrace, Zscaler, and CrowdStrike.
• Manage and support DevOps pipelines (GitHub, GitLab, Azure DevOps, Visual Studio, Python, Visual Basic).
• Automate infrastructure tasks using PowerShell, Python, or other scripting tools.
• Optimise SQL environments (SQL 2016/2019, DBA, Reporting Services, Integration Services, Power BI, Analysis Services).
• Lead infrastructure projects, including cloud migrations, security hardening, automation, and system upgrades.
• Develop and implement best practices for patch management, performance tuning, and compliance.
• Collaborate with senior leadership and C-level stakeholders to shape IT strategy.
• Drive service improvements, capacity planning, and performance monitoring using ServiceNow ITSM.
• Document solutions, create runbooks, and enhance IT operational workflows.

What You Bring to the Table

• 7+ years of experience in enterprise IT support and infrastructure engineering.
• Advanced expertise in Windows Server, Linux, VMware, Citrix, Entra AD, M365, and
• Strong knowledge of backup & DR (Veeam, iLand, replication, cloud disaster recovery).
• Deep networking expertise (Cisco, Meraki, VPNs, VoIP, Palo Alto, Brocade Fibre).
• Hands-on experience with Ivanti Security Control, Darktrace, Zscaler, and CrowdStrike.
• SQL administration skills, including Power BI and database optimization.
• Experience in DevOps, scripting (PowerShell, Python), and automation.
• Strong leadership, mentoring, and project management capabilities.
• Preferred Certifications: MCSE, VCP, CCNP, Citrix CCE-V, ITIL, Veeam VMCE.

Why Join?

• Work on high-profile enterprise IT systems for a prestigious London-based client.
• Be part of a cutting-edge, innovation-driven IT team.
• Competitive salary and benefits package.
• Career growth within a leading global managed service provider.

Ready to tackle enterprise IT challenges and lead next-generation solutions?