Senior Principal - RTE

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 Release Train Engineer is a servant leader and delivery coach for the Agile Release Train delivering GSK's network and connectivity platforms, applying SAFe practices within GSK's Technology operating model to coordinate the flow of value across the teams building and running those platforms. Operating consistently with the BCG platform operating model, the role treats the platform as a product delivered by a durable, cross-functional team, and is accountable for facilitating Programme Increment planning, coordinating dependencies and risks across teams, and driving predictable, high quality delivery through Agile ceremonies, flow metrics and continuous improvement. Key Responsibilities Facilitate Programme Increment planning and Agile Release Train execution • Plan, prepare and facilitate PI Planning, System Demos, Inspect and Adapt workshops and other Agile Release Train events for the platform's teams. • Coordinate Scrum of Scrums, ART sync and cross-team ceremonies to maintain alignment on scope, sequencing and delivery against the Programme Increment. • Build and maintain the ART's Programme Board, tracking major milestones, cross-team dependencies and feature delivery against the Programme Increment. • Support Product Management and Product Owners in refining the Programme Backlog and preparing content for Planning Interval events. Manage dependencies, risks and impediments across the train • Identify, track and resolve cross-team and cross-platform dependencies and risks using ROAM (Resolved, Owned, Accepted, Mitigated). • Escalate and remove impediments to flow that individual teams cannot resolve themselves, including supplier, platform or portfolio level blockers. • Coordinate with other Release Train Engineers, Solution Train Engineers and Platform Managers to sequence work across dependent platforms and domains. Drive flow, predictability and continuous improvement • Track and report flow metrics including velocity, programme predictability, cycle time and quality trends, and use them to drive improvement actions. • Coach teams, Scrum Masters and Product Owners in Lean-Agile and SAFe practices, building local capability rather than acting as a single point of control. • Partner with Portfolio, Solution and Platform stakeholders to continuously improve the ART's ways of working, tooling and use of automation or AI-assisted delivery practices. Key Relationships/Customers Business Stakeholders • Product teams and business technology groups whose network or platform capability delivery depends on a predictable, well coordinated Agile Release Train. • Business service owners and key users where delivery sequencing, dependencies or timelines affect service quality or adoption. • Business service owners and key users where engineering quality, resilience or change risk directly affects business outcomes. Tech  Stakeholders • Product Owners, Scrum Masters/Team Coaches, Principal Engineers and Platform Managers for the teams on the train. • Solution Trai