Principle Engineer

Location: Swindon

Principle AI Engineer

Location:

UK Wide (Hybrid) Salary: 100k We're working with an innovative organisation that's redefining how people learn through AI. They are building next-generation AI products that deliver personalised, real-time learning experiences at scale and are looking for a Principal AI Engineer to play a pivotal role in shaping the future of their AI platform. This is not an infrastructure or MLOps-focused role.

They're looking for experienced AI builders who have designed, developed and shipped AI products in commercial environments and are passionate about solving complex problems with cutting-edge technologies. The Opportunity As a Principal AI Engineer, you'll work on the core AI systems that power adaptive and intelligent user experiences. You'll have the opportunity to build sophisticated LLM-based applications, experiment with emerging AI capabilities and contribute to products that have a genuine impact on end users.

Key Responsibilities Design, build and evolve complex AI systems using Large Language Models (LLMs), prompt architectures and agentic workflows. Develop real-time, adaptive AI capabilities that deliver personalised and intelligent user experiences. Create custom evaluation frameworks and metrics to measure model performance, reliability and product effectiveness. Design scalable, maintainable software solutions using Python and modern cloud technologies. Integrate AI capabilities across platform systems, content pipelines and user-facing products.

Prototype and product ionise novel AI interactions by leveraging the latest developments in AI research. Implement testing, monitoring and guardrails to ensure quality, safety and observability across AI systems. Collaborate with cross-functional teams to translate customer and business requirements into impactful AI products. Mentor others and contribute to a culture of technical excellence and continuous learning. What We're Looking For We're looking for hands-on AI engineers who can demonstrate ownership of the products they've built.

You'll ideally have:
Commercial experience designing and delivering AI products and solutions. Strong experience building LLM-based applications and AI-driven products. Excellent prompt engineering skills and experience designing agentic systems and workflows. Strong software engineering fundamentals with expertise in Python. Experience working with cloud environments and CI/CD practices. A product mindset with a focus on customer outcomes and business value. The ability to work across strategy, engineering and product development.

Experience creating meaningful AI evaluation methods and custom performance metrics. Excellent problem-solving and communication skills. What's On Offer Competitive salary and benefits package. Flexible and remote-friendly working arrangements. Annual learning and development budget for conferences and training. Annual home office and IT equipment allowance. Opportunities to collaborate with an international, high-performing team. Global company retreats and team events. The opportunity to work on cutting-edge AI products that are shaping the future of personalised learning.

If you're a hands-on AI engineer who loves building products, experimenting with emerging technologies and delivering real customer impact, we'd love to hear from you.