Lead IT Support Specialist: Messaging & Collaboration at Old Mutual South Africa

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