Principal AI Scientist – UK Perm Full Time

Infused Solutions Ltd
Principal AI Scientist

Location: Remote (UK-based)
Salary: 80,000 – 100,000 + Benefits
Location Requirement: UK applicants only
Sponsorship: Unfortunately, visa sponsorship is not available for this position.

Principal AI Scientist –

Are you an experienced AI Scientist looking to lead cutting-edge research and develop next-generation AI solutions?
We’re partnering with an innovative organisation that is transforming how AI is applied within psychometrics and human assessment. This is a rare opportunity to take ownership of the AI research roadmap, influence technical strategy, and build intelligent systems that have real-world impact.
Working remotely within the UK, you’ll collaborate with cross-functional teams to design, develop and deploy advanced AI models, with a particular focus on Large Language Models (LLMs), AI agents and machine learning technologies.

The Role

As Principal AI Scientist, you will be the technical authority for AI research and innovation. You’ll define the research direction, lead experimentation, and translate cutting-edge research into production-ready solutions.
This is a hands-on leadership role where you’ll balance strategic thinking with practical implementation.

Responsibilities

• Define and own the AI research and development roadmap.
• Lead the design, development and evaluation of advanced AI and machine learning solutions.
• Build and optimise Large Language Model (LLM) applications and autonomous AI agent frameworks.
• Develop robust evaluation methodologies to ensure AI systems are accurate, reliable and measurable.
• Work closely with product, engineering and research teams to translate complex ideas into scalable products.
• Stay at the forefront of emerging AI research and identify opportunities to incorporate new techniques.
• Mentor senior technical colleagues and help establish AI best practices across the organisation.

What We’re Looking For

We’re looking for someone with significant commercial experience in AI research and technical leadership.

Essential Skills

• Extensive experience developing Machine Learning and AI solutions.
• Strong hands-on experience with Large Language Models (LLMs) and AI Agent frameworks.
• Proven experience leading technical research initiatives and defining AI strategy.
• Experience taking AI solutions from research through to production.
• Excellent Python programming skills.
• Strong understanding of modern ML frameworks such as PyTorch or TensorFlow.
• Experience evaluating AI model performance and designing robust experimentation methodologies.

Psychometric Experience

You’ll either have direct experience in psychometrics or possess the analytical foundation to become an expert quickly.
Experience in one or more of the following would be highly desirable:

• Psychometrics
• Mathematical or inferential statistics
• Research methodology
• Measurement theory
• Survey research
• Questionnaire design
• Survey data analysis (for example, market research)
• Validity and reliability evaluation

We’d Love to See

• PhD or Master’s in Artificial Intelligence, Machine Learning, Computer Science, Statistics, Psychology or a related discipline.
• Experience publishing research or contributing to innovative AI projects.
• Experience working within research-led environments.
• Excellent communication and stakeholder management skills.

What’s On Offer

• Salary of 80,000 – 100,000
• Fully remote working within the UK
• Opportunity to shape the AI strategy of a growing organisation
• Work on genuinely innovative AI products
• High level of autonomy and technical ownership
• Collaborative, research-focused culture
• Excellent opportunities for professional growth and career progression

If you’re passionate about advancing AI research, enjoy solving complex scientific problems, and want to lead the development of innovative AI solutions with real-world impact, we’d love to hear from you.
Please note: Applicants must already have the right to work in the UK. Unfortunately, visa sponsorship is not available for this position.