> Markdown version of [/jobs/ext/3290870-senior-ai-engineer](https://www.wearedevelopers.com/jobs/ext/3290870-senior-ai-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior AI Engineer - **Company:** Harnham - **Location:** London, UK - **Experience:** Expert - **Salary:** £110,000.0 - £120,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Natural Language Processing, Performance Tuning, Software Engineering, Speech Recognition, Retrieval-Augmented Generation, Large Language Models - **Published:** September 30, 2026 - **Apply:** https://www.reed.co.uk/jobs/senior-ai-engineer/57402657 ## About the Role * Strong commercial experience building production AI systems * Hands-on experience with LLMs, fine-tuning, NLP, and RAG * Software engineering and system design expertise * Experience working with content-focused AI applications * Strong communication skills and stakeholder management * Experimental mindset with a passion for AI innovation * Exposure to speech, audio, or voice AI is a bonus ## Description Join a newly formed AI Lab focused on building the next generation of AI-powered products. This is a highly hands-on role where you'll work on LLMs, RAG systems, generative audio, and greenfield AI initiatives within a small, high-impact team., * Build and fine-tune LLM-powered applications * Develop RAG and retrieval workflows * Work on style, tone, and content modelling * Contribute to speech processing and generative audio projects * Improve existing AI agents and develop new AI products * Collaborate with engineering, product, and business stakeholders * Help shape technical architecture while remaining hands-on