Senior Principal - Principal, RE – P&C

Business Introduction GSK remains committed to achieving bold commercial ambitions for the future. By 2031, we aim to deliver £40 billion in annual sales, leveraging our existing strong performance momentum to significantly increase our positive impact on the health of billions of patients globally. Our Ahead Together strategy is centred on early intervention to prevent and alter the course of disease, thereby protecting people and supporting healthcare systems. Our diverse portfolio consists of vaccines, specialty medicines, and general medicines. Through continuous innovation and a dedicated focus on scientific and technical excellence, we strive to develop and launch new, groundbreaking treatments that address critical health challenges. Job Purpose  The Site Reliability Engineer improves the reliability, resilience and observability of GSK's platforms as a hands-on engineer, reducing toil, preventing incidents and meeting agreed reliability targets. The role defines and monitors SLOs, instruments platforms for observability, leads incident response through to permanent prevention, and applies AI and automation for anomaly detection, predictive alerting and self-healing. It also coaches platform engineering teams in reliability practice and error-budget discipline. The role sits in Reliability Engineering & Operations and is deployed into a platform domain while drawing on the central capability, so it holds the central reliability standard inside a team it does not report to. Platform build and engineering direction sit with the Principal Engineers and the Engineering Director, the major incident process sits with the Major Incident Manager, and the reliability standard itself is set by the Reliability Engineering Senior Director. Reliability targets are held jointly with the Platform Manager rather than imposed on them. SCALE AND COMPLEXITY This is a senior enterprise reliability leadership role operating across globally distributed, business-critical Productivity and Collaboration services. The post holder is accountable for setting technical direction, resolving systemic and ambiguous reliability risks, and influencing prioritisation across multiple platform teams, suppliers and geographies without relying on direct line authority. Leads reliability outcomes for globally consumed productivity, messaging, collaboration and meeting services. The role manages systemic dependencies across identity, security, information governance, network connectivity, endpoint experience, Microsoft 365 services and strategic suppliers, where disruption can affect broad populations across regions and markets. The role manages a portfolio of interdependent services with material operational, regulatory, cyber, resilience and financial consequences. It shapes investment and supplier decisions and may influence or govern an annual technology and service portfolio of up to approximately GBP 25 million, where applicable to the assigned scope.