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About the Role
This is a rare opportunity to be the first dedicated Applied AI Engineer at The Gym Group, a role with real scope, ownership, and impact. You will build production AI solutions that change how teams work and how members experience fitness, functioning as a hands-on engineer who ships code. This role allows you to shape how a major UK business adopts AI from the inside.
Responsibilities
- Design and build production-ready agents, copilots, and workflow automations that integrate with existing systems, data, and processes.
- Embed with business and product teams to identify, scope, and deliver high-value AI solutions from prototype to production, with clear measures of success and defined handover points.
- Contribute AI-enabled features to member-facing products alongside Product Engineers, owning work through deployment and incidents.
- Evaluate and monitor AI solutions in production, reporting impact honestly, including cost, error rates, and what did not work.
- Coach team members while building real solutions so that capability stays with the team after each engagement, and create reusable playbooks and standards shared across the business.
- Work daily with the AI Platform Engineer, Tech Leads, Product Leads, and AI Ambassadors to use approved models and tooling and contribute reusable components back to the platform.
- Keep human oversight and clear accountability at the center of every solution, working with Information Security and Data Protection throughout.
Requirements
- Practical experience building applied AI solutions with large language models, including retrieval-augmented generation, agents, and workflow automation.
- Substantial experience building and deploying production software end-to-end, owning outcomes through deployment and support.
- Hands-on experience with LLM APIs, prompt and context engineering, retrieval and vector search, and agent workflows involving tool use and human oversight.
- Experience building and deploying secure solutions using cloud infrastructure, CI/CD, and appropriate controls for data access.
- Experience working directly with non-technical stakeholders to turn ambiguous problems into scoped, working solutions.
- Proficiency in Python as a primary production language, with working knowledge of at least one additional language.
- Experience integrating APIs, systems, and data sources into existing business processes in real-world environments.
- Experience evaluating and monitoring AI solutions in production, including observability and impact measurement.
- A collaborative, low-ego approach and evidence of coaching others so that technical capability stays with the team.
Skills
- Large language models
- Retrieval-augmented generation
- Agents
- Workflow automation
- LLM APIs
- Prompt engineering
- Context engineering
- Retrieval
- Vector search
- Tool use
- Human oversight
- Cloud infrastructure
- CI/CD
- Python
- API integration
- Observability
- Impact measurement
Location
- Hybrid
- Clapham Junction
Work Type
- Hybrid
Experience Level
- Applied AI Engineer
- Production software end-to-end
- AI solutions
About the Company
- The Gym Group is one of the UK’s leading fitness businesses with more than one million members and 265+ gyms.
- Their mission is to break down barriers to fitness for all.
- Technology, data, and new ideas play a central role in their growth.
- They are a people-first business recognized as one of The Sunday Times Best Places to Work and awarded Investors in People Gold.
Equal Opportunity
- Actively encourage applications from a diverse demographic.
- Passionate about your culture and value alignment.
- Applications may be reviewed by an AI tool, but automated decision-making is never used; all decisions are made by a member of the recruitment team.
- Data will be handled in accordance with their Privacy Policy and UK GDPR.