Senior/Staff ML Research Engineer | London in London

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Job Description
We're hiring a Senior/Staff ML Research Engineer in London for one of the most exciting conversational AI companies in the world.
Backed by $231M from a16z, Accel, and Bain Capital Ventures, and trusted by some of the world's most recognisable enterprise brands — this team is redefining what AI agents can do across chat, email, and voice at massive scale.
We're hiring a Senior/Staff ML Research Engineer in London for one of the most exciting conversational AI companies in the world.
Backed by $231M from a16z, Accel, and Bain Capital Ventures, and trusted by some of the world's most recognisable enterprise brands — this team is redefining what AI agents can do across chat, email, and voice at massive scale.
The Role
You'll sit on the core Research team, owning work end-to-end from ambiguous idea through to production — at a scale that impacts millions of users. This isn't prompt engineering. This is frontier ML research shipping to the real world.
What you'll be doing:
Building models for enterprise customer support tasks that outperform closed-source frontier models Fine-tuning and deploying open-source LLMs to drive order-of-magnitude latency reductions across channels Designing state-of-the-art methods for instruction tuning and information retrieval Breaking down complex research problems into clear, iterative roadmaps Writing clean, bug-free ML code that powers production systems at scale
✅ What We're Looking For
7+ years in AI/ML engineering or research (5+ for exceptional talent) Proven track record shipping ML projects from concept to production Deep experience fine-tuning and deploying LLMs in production environments Experience with multimodal models Strong engineering fundamentals — you write production-quality ML code
Compensation & Benefits
£200,000 – £300,000 base salary Competitive equity Medical, dental & vision Unlimited PTO Daily lunches, dinners & snacks in-office
Location & Logistics
London — 5 days in-office Full-time, permanent
⚠️ Visa sponsorship is not available — candidates must have the right to work in the UK
#MachineLearning #MLResearch #LLM #ConversationalAI #LondonTech #AIJobs #Hiring
Yh #LLM #ConversationalAI #LondonTech #AIJobs #Hiring
If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.
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Location:
London
Job Type:
FullTime
Category:
Engineer, Research, Senior, Staff, Engineering

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