Harnham
Senior AI Engineer
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Senior AI Engineer
London (Hybrid) | Up to £115,000 + Benefits
If you're excited by the idea of shaping the future of AI-powered content, this is a rare opportunity to join a newly formed AI Lab at a pivotal stage. You'll work on cutting-edge Generative AI products, take ideas from experimentation to production, and have a genuine influence on the direction of new AI initiatives.
The Company
Our client is a well-established international organisation investing heavily in AI innovation. They've recently launched a dedicated AI Lab focused on developing next-generation AI products and exploring the potential of Generative AI across content, audio, and personalised user experiences.
Working within a small, highly collaborative team, you'll have the autonomy to experiment, move quickly, and see your work make a real impact.
The Role
You'll be a hands-on engineer building and improving production-grade AI systems, with a strong focus on LLMs and content-related applications.
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Key responsibilities include:
- Fine-tuning LLMs for style, tone, and content generation
- Building and evaluating RAG pipelines
- Developing AI features for summarisation, personalisation, and content discovery
- Exploring multimodal and audio-based AI applications
- Creating evaluation frameworks to improve model quality
- Working closely with product, engineering, and non-technical stakeholders to bring ideas to life
- Contributing to rapid experimentation and new product development
Your Skills & Experience
- Commercial experience building LLM, NLP, or Generative AI products
- Strong Python engineering skills
- Experience with model fine-tuning, prompt optimisation, or instruction tuning
- Hands-on experience developing RAG solutions
- A product-minded approach with a focus on delivering high-quality outputs
- Excellent communication skills and the ability to work with non-technical teams
- Comfortable operating in fast-moving, ambiguous environments
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Nice to have:
- Experience with style transfer, semantic search, or content-focused AI
- Speech processing, TTS, or generative audio experience
- Exposure to multimodal AI systems
What They Offer
- Up to £115,000 base salary
- Comprehensive benefits package
- Hybrid working (3 days per week in the London office)
- The opportunity to join a flagship AI initiative from an early stage
- High levels of ownership, visibility, and impact
- A collaborative environment focused on experimentation and innovation
How to Apply
If you're looking for a role where you can build innovative AI products, work closely with senior stakeholders, and help define the next generation of Generative AI experiences, apply today.
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