IT Infrastructure Team Leader

Sigma Connected Group; Wes-Kaap; On-site; ZAR 1,200,000 - 1,500,000; Full time

Benefits offered by this job

Medical Insurance

Employee Assistance Program

On-site nurse

Shuttle service

Tree planting in Sigma Forest

Job summary

Sigma Connected Group in Diep River, South Africa, is seeking an IT Infrastructure Team Leader to lead the infrastructure estate, ensuring secure, resilient, and high-performing systems across the business. You will guide a team, oversee operations, and align technology with business needs.

The role combines hands-on technical delivery with people leadership, shaping security, BC/DR, and future IT talent, with a focus on continuous improvement and cross-functional collaboration.

Qualifications

• Strong leadership and people management skills.
• Experience with Microsoft technologies and virtualization.
• Ability to manage multiple priorities with service excellence.
• Willingness to participate in out-of-hours maintenance.

Responsibilities

• Coach and develop team through regular meetings and performance planning.
• Ensure critical systems are available, secure, and well-documented.
• Support and administer Microsoft 365, Exchange Online, Teams, Intune, CA policies.
• Manage Scale Computing and Hyper-V environments including replication and DR.
• Oversee upgrades, patches, backups, and change management.
• Monitor capacity and performance and report metrics.
• Collaborate with IT leaders to maintain security and compliance.
• Drive continuous improvement and address recurring issues.
• Act as escalation point for IT Service Desk and major projects.

Skills

Leadership

People management

Technical leadership

Cloud & Microsoft tech

Problem solving

Education

Matric / Equivalent qualification

Degree in Information Technology or related

Microsoft/Azure Certification

Tools

Microsoft 365

Exchange Online

Microsoft Teams

Intune

Conditional Access

Windows Server

Hyper-V

Scale Computing

Job description

What being part of the Sigma Family means for you

IT Infrastructure Team Leader

Diep River – Office Based

Lead. Innovate. Deliver Excellence.

This is an exciting opportunity for an IT Infrastructure Team Leader who will be responsible for leading and developing the Infrastructure Team while ensuring the delivery of secure, resilient, and high-performing IT systems across the business. You will oversee infrastructure operations, support strategic technology initiatives, and ensure Sigma's technology environment continues to evolve in line with business and client requirements.

At Sigma, we're looking for an exceptional IT leader who can combine technical expertise with people management, coaching, and operational excellence to drive business success.

This is an opportunity to join an award-winning business where your leadership will directly influence infrastructure performance, business continuity, information security, and the development of future IT talent.

Why Sigma?

For four consecutive years, Sigma has been recognised by the Sunday Times Best Places to Work, voted for by our people. We believe in #ImproveEverythingAlways and create an environment where ambitious leaders can thrive, grow, and make a real impact.

What You'll Get

Career development and opportunities to apply for internal promotions following your probationary period.

Monthly, Quarterly and Annual awards with marvelous prizes.

Resources such as the Employee Assistance Program (EAP) and Mental Health First Aiders to support you when life might not be going quite as you expected.

Receive a tree in the Sigma Forest when you pass probation. This will allow you to review how your tree is reducing your carbon footprint.

Medical Insurance – Covers doctor visits, optometrist appointments and dental assistance, funeral cover, Group Life Cover.

Your Health Matters-We have a nurse on-site to assist with any female health-related queries, support when you need it most.

Your Vision, Our Mission, All Done Where You Work- We’re bringing eye care to you! From eye testing to trendy spectacles, it all happens onsite for your convenience!

Transportation Benefits – Accommodate making your traveling journey to work easier with the amazing shuttle services that we offer our employees.

Join communities and collaborate with your colleagues on our internal Social Media platform.

The opportunity to be a part of an equal, diverse, and inclusive workplace – all amazing people are welcome in the Sigma Family.

A bit more about the Opportunity...

What Your Day-to-Day Will Look Like

As our IT Infrastructure Team Leader, you will lead and manage the performance, availability, security, and continuous improvement of Sigma's infrastructure estate. You will combine hands-on technical expertise with strong leadership capabilities to ensure exceptional service delivery whilst supporting the growth and development of your team.

You’ll

• Coach, mentor and develop Infrastructure Team members through regular one-to-one meetings, performance management, workload allocation and continuous development planning.
• Ensure business-critical systems remain available, secure, highly performant and appropriately documented across the organisation.
• Support and administer Microsoft technologies including Microsoft 365, Exchange Online, Teams, Intune, Conditional Access, Windows Server and Remote Desktop Services environments.
• Manage and develop Scale Computing and Hyper-V environments, including site-to-site replication and disaster recovery solutions.
• Oversee infrastructure upgrades, patching, hardware and software installations, backup solutions and change management activities.
• Monitor infrastructure capacity and performance, produce reporting metrics, and support future technology planning and investment decisions.
• Work closely with the IT Infrastructure Manager, IT Security Manager and wider IT leadership team to maintain security standards, compliance requirements and operational best practice.
• Drive continuous improvement initiatives, proactively identifying trends, mitigating recurring issues and implementing sustainable technical solutions.
• Act as an escalation point for the IT Service Desk and support business-wide technology projects and infrastructure enhancements.

What amazing People will bring to the role

Who We're Looking For

An IT Infrastructure Team Leader is a confident and technically capable leader who combines infrastructure expertise with exceptional people management skills. They lead by example, build strong relationships across the business and drive positive change through innovation, operational excellence and effective leadership.

You will be highly skilled in systems and network administration, have a strong understanding of Microsoft technologies, and be able to balance strategic thinking with hands-on technical delivery. You will thrive in a fast-paced environment, demonstrate strong problem-solving capabilities, and possess the ability to manage multiple priorities while maintaining high service standards.

You will have experience developing high-performing teams, managing stakeholder expectations, and delivering infrastructure solutions that support business growth and operational resilience.

You’ll Ideally Bring

• Matric / Equivalent qualification (Essential).
• Degree in Information Technology or a related discipline (Desirable).
• Microsoft and/or Azure Certification, or equivalent commercial experience.
• Previous experience leading and developing technical teams.
• Strong experience with Windows Server, Windows 11 and Microsoft infrastructure technologies.
• Experience administering Microsoft 365, Exchange Online, Microsoft Teams, Intune and Conditional Access policies.
• Experience with Scale Computing and/or Hyper-V virtualisation platforms.
• Strong systems and network administration experience.
• Good IP networking knowledge, preferably within Cisco environments.
• Experience working alongside Information Security teams to meet compliance and certification requirements.
• Project management experience with the ability to coordinate multiple projects and consistently meet strict deadlines.
• Strong communication, delegation and stakeholder management skills.
• A customer-focused mindset with excellent problem-solving capabilities.
• Flexibility to participate in out-of-hours maintenance and support activities when required.

Why This Role?

This isn't just another IT leadership position. It is an opportunity to lead critical infrastructure services, influence Sigma's technology strategy, develop future technical leaders, improve operational resilience, and directly impact business performance across multiple locations.

If you're ready to take ownership, drive innovation and help shape the future of Sigma's technology landscape, we'd love to hear from you.

Join the Sigma Family

Apply today and help us #ImproveEverythingAlways