Principal Tech Engineer – Site Serialisation Systems

About the Team: Enterprise Systems is the backbone of GSK’s internal operations in Digital & Tech, enabling GSK Global Functions teams such as Finance, Procurement, HR, Legal, Compliance, WREF, CGA and Corporate Secretariat to run seamlessly. This team designs and delivers cutting-edge digital platforms that power critical processes, ensuring efficiency, compliance, and scalability across the enterprise. Enterprise Systems Management & Business Operations delivers digital solutions that support Enterprise Systems running as a high-performing organisation. This team drives financial discipline, operational rigour and strategic alignment across the ES portfolio that safeguard GSK’s integrity and reputation globally. By joining this team, you’ll help shape systems that support thousands of employees worldwide, driving innovation and reliability in the tools that keep GSK moving forward.   Job Purpose The Principal Tech Engineer – Site Serialisation Systems provides technical leadership for site serialisation systems within PIMMS (the Manufacturing Track & Trace product), across the broader product family, technology platform or programme. The role leads solution design, validation, implementation and troubleshooting and ensures technical outputs align with approved architecture, product strategy, engineering standards and GxP requirements. The role is hands-on and embedded close to business problems. The job holder personally investigates complex failures, interrogates data, logs and interfaces, challenges vendor and partner designs and resolves integration problems, rather than primarily coordinating or escalating them. The role works across the site serialisation estate rather than being tied to a single site and retains technical judgement and engineering integrity where strategic partners deliver routine build, test, deployment and support. The job holder applies AI-assisted methods to development, troubleshooting, testing, documentation, knowledge management, monitoring and automation, while retaining full human accountability for technical decisions and GxP, Responsible AI, cyber security and architecture compliance. The role also develops engineering capability by coaching engineers and super users and converting lessons learned into reusable designs, standards, training and knowledge.   Key Responsibilities • Implement technical solution designs and configurations in accordance with approved architecture and product strategy. • Own technical quality for the assigned scope, including specifications, design documentation, configuration records and technical validation evidence. • Perform troubleshooting and root-cause analysis, with timely escalation where manufacturing batches, product quality, patient supply or data integrity may be affected. • Design or configure interfaces, workflows, recipes, data models and environments, including site serialisation system integrations, and write or review related specifications and test scripts. Hold configurations, interface mappings and scripts under version control, subject changes to peer review, and verify them through repeatable automated or scripted tests, retaining traceable test evidence under approved change and GxP validation controls. • Own the technical reliability of site serialisation systems, including monitoring, recoverability, obsolescence and technical debt, addressing root causes so that incidents do not recur rather than closing individual tickets • Actively extract and codify existing serialisation knowledge into runbooks, integration patterns, troubleshooting guides and technical documentation, building capability across the wider engineering teams rather than creating a single point of dependency. • Lead technical design and implementation across multi