Lead IT Support Specialist: Messaging & Collaboration

Let's Write Africa's Story Together!

Old Mutual is a firm believer in the African opportunity and our diverse talent reflects this.

Job Description

As a technical leader within Old Mutual’s Messaging and Collaboration team, the incumbent will be responsible for architecting, implementing and maintaining enterprise-grade messaging platforms, with a strong focus on Microsoft 365, Exchange (including legacy systems), and Linux-based messaging infrastructure. This role demands deep technical expertise, strategic thinking and mentorship capabilities to support a resilient and scalable collaboration environment.

Messaging Infrastructure Leadership

• Architect and maintain messaging infrastructure including Microsoft Exchange, Office 365, and Linux-based mail systems.

• Lead modernization initiatives to transition legacy systems to cloud-native or hybrid environments.

• Design and document messaging solutions that support modern technology methods, ensuring alignment with enterprise architecture standards.

Advanced Administration & Support

• Provide lead-level support for messaging platforms, resolving escalated technical issues and complex configurations.

• Administer tenant-level settings, manage 3rd-party integrations and ensure secure and efficient operations across messaging services.

• Administer and optimize mail flow, mailbox provisioning, retention policies, and compliance configurations.

• Manage high-availability and disaster recovery strategies for messaging platforms.

• Monitor system health, performance, and capacity, proactively addressing issues and bottlenecks.

Linux & Open Source Integration

• Implement and maintain Linux-based messaging components and open-source tools to enhance infrastructure flexibility and performance.

• Leverage AWS serverless components and other cloud-native technologies to modernize messaging architecture.

Collaboration Enablement

• Support collaboration tools across the enterprise, ensuring seamless integration and user experience.

• Align infrastructure with industry best practices and compliance requirements.

Automation

• Develop and maintain PowerShell scripts and automation workflows for routine tasks, reporting, and configuration management.

• Integrate messaging services with enterprise monitoring and alerting platforms.

• Contribute to Business Impact Analysis (BIA) and resilience planning for messaging systems.

Collaboration Enablement

• Support and enhance collaboration tools such as Teams, SharePoint, and OneDrive, ensuring seamless integration with messaging services.

• Provide technical leadership in cross-functional projects involving unified communications and digital workplace transformation.

Stakeholder Engagement & Support

• Serve as a technical escalation point for messaging-related incidents and service requests.

• Collaborate with internal teams and vendors to resolve complex issues and implement enhancements.

• Provide mentorship and guidance to junior engineers and contribute to knowledge-sharing initiatives.

Qualifications, Skills and Experience:

• Matric is essential

• Relevant IT related qualification / certification

• 6+ years of experience in enterprise messaging administration, including Exchange Server (2010/2016/2019), Office 365, and Linux-based mail systems.

• Microsoft Messaging\Communications, M365 Expert Certification in or related field (or equivalent work experience) 

• Strong proficiency in PowerShell and scripting for automation and reporting.

• Experience with hybrid Exchange deployments, mail routing and coexistence strategies.

• Familiarity with cloud platforms (Azure, AWS) and containerized services.

• Solid understanding of email security protocols and compliance frameworks.

• Excellent documentation, communication and stakeholder management skills.

Skills

Computer Literacy, Database Administration, Database Management Systems (DBMS), Database Queries, Data Controls, Document Management, Executing Plans, Expertise Management System, Knowledge Management, Metadata Management, Object-Oriented Database Management System (OODBMS), Office Systems, Oral Communications, Policies & Procedures, Test Case Management

Competencies

Collaborates

Communicates Effectively

Decision Quality

Ensures Accountability

Manages Complexity

Optimizes Work Processes

Plans and Aligns

Tech Savvy

Education

NQF Level 5 - Higher, Advance or Occupational Certificate or equivalent

Closing Date

19 November 2025 , 23:59

The appointment will be made from the designated group in line with the Employment Equity Plan of Old Mutual South Africa and the specific business unit in question.

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