Senior Systems Administrator

The Senior Systems Administrator (Tier 3) is responsible for the design, administration, and optimization of the organization’s cloud and hybrid IT environments, with a strong focus on Microsoft 365, Azure, and modern endpoint management. This role serves as the highest level of technical escalation, providing expert troubleshooting and root cause analysis to ensure system reliability, performance, and security. It establishes operational consistency through standards, documentation, and knowledge sharing while supporting capability development across IT support teams. It also contributes to strengthening internal expertise by mentoring Tier 1 and Tier 2 staff.