Principal AI Engineer AI, LLM, Python, CI/CD, SaaS/PaaS, Prompt Engineering, Agentic Workflows, Platform Systems, Remote (UK)Excellent Salary + BenefitsThis is a fantastic Principal AI Engineer opportunity to work with a leading technology services organisation, to build and scale intelligent AI that delivers adaptive and impactful personalised experiences.The Principal AI Engineer is a remote working role, based in the UK.As a Principal AI Engineer, you will own and drive the development of the core AI system, building and scaling real-time, adaptive experiences. The Principal AI Engineer will collaborate closely with product, content, and platform teams to design, implement, and optimise large language model (LLM) architectures, agentic workflows, and AI-driven solutions. Responsibilities include developing scalable, maintainable software, integrating AI capabilities across platform systems, running rigorous experimentation with custom evaluation metrics, and ensuring model reliability, safety, and observability. The ideal Principal AI Engineer will have deep experience designing and deploying complex LLM-based systems, strong Python and software engineering skills, familiarity with CI/CD and cloud infrastructure, and a proven ability to translate AI research into production-ready solutions. Exceptional problem-solving, technical leadership, and a passion for advancing personalised experiences at scale are essential.Key Skills as Principal AI Engineer:Proven experience building and deploying complex LLM-based systems and agentic workflows.Strong Python, software engineering, CI/CD, and cloud infrastructure skills.Skilled in designing scalable, maintainable AI systems across platform and product pipelines.Experienced with AI evaluation, custom metrics, and experimentation frameworks.Collaborative, able to translate research into production-ready solutions.Strong problem-solving and technical leadership, mentoring teammates.Passionate about advancing personalised experiences at scale.This is an exceptional Principal AI Engineer opportunity, building cutting-edge AI systems that impact millions of users worldwide.Key Skills: AI, LLM, Python, CI/CD, SaaS/PaaS, Prompt Engineering, Agentic Workflows, Platform Systems, Remote (UK)*PLEASE READ BEFORE APPLYING*Proven experience in designing, deploying, and scaling AI/ML systems is essential. You must also be willing to collaborate on-site as needed and engage closely with cross-functional teams to deliver high-impact solutions.JBRP1_UKTJ