Principle Engineer

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 productionise 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.