ConnexAI
Data Scientist (LLMs)
ConnexAIUnited Kingdom6 days ago
Full-timeRemote FriendlyInformation Technology, Research

Role: Data Scientist (LLMs)

Location: Manchester, UK (Hybrid – 3 days in the office)


Build the Future of AI-Powered Communication

We’re looking for a Data Scientist to join our growing LLM team, building production-ready large language models that power real enterprise applications. You’ll help train models, create datasets, and push performance boundaries in a fast-moving, research-driven environment.


What You’ll Do

  • Train and fine-tune LLMs and ML models using standardised experiments and high-quality data.
  • Build and improve LLM-based systems for low-latency RAG systems, intent detection, call scoring, and email classification.
  • Support real-time inference infrastructure with ultra-low latency and detailed monitoring.
  • Create and maintain evaluation datasets to test safety, prompt following, and conversational quality.
  • Collaborate with engineers and researchers to apply new ideas from the latest LLM and ML research.


What We’re Looking For

  • MSc or PhD in Computer Science, Data Science, Mathematics, Physics, or a related field.
  • Strong Python skills (pandas, NumPy, scikit-learn, PyTorch).
  • Curiosity, rigour, and drive to improve model performance.


Why Join Us

  • Work on real applied LLMs from training to deployment.
  • Collaborate with an ambitious, research-informed team.
  • Shape the next generation of AI-driven communication tools.

Key Skills

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