David Kennedy Recruitment is working with a company developing AI-powered conversational products, that is seeking to onboard a Mid/Senior AI LLM Engineer to join their team remotely. The role focuses on fine-tuning and improving self-hosted large language models that power personalised AI conversations. You will work hands-on with open-weight models, training datasets, evaluation frameworks and GPU-based training, taking model improvements from experimentation through to production deployment. Position: Mid/Senior AI LLM Engineer

Location:
Europe, Remote Employment type: B2B engagement DUTIES AND

RESPONSIBILITIES:
* Train and fine-tune existing AI language models to improve their conversational abilities
* Prepare and improve training datasets to help models produce more accurate, natural and consistent responses
* Develop testing methods to measure model quality and identify areas for improvement
* Improve conversational memory, personality consistency and long-running dialogue
* Develop multilingual conversational capabilities and interactions involving multiple characters
* Investigate model failures and optimise training data, prompts and response filters
* Run model training experiments using GPUs and troubleshoot technical issues
* Deploy improved models into production, monitor their performance and continue refining them
* Collaborate with AI engineering,



product, web development and DevOps teams

REQUIREMENTS:
* Proven hands-on experience fine-tuning open-weight AI language models and deploying them into production
* Strong Python programming skills
* Practical experience with PyTorch and Hugging Face or comparable machine-learning tools
* Experience with model training techniques such as supervised fine-tuning, LoRA and QLoRA
* Familiarity with preference-based training techniques such as DPO or GRPO
* Experience building training datasets and model evaluation frameworks
* Practical experience with GPU-based training and debugging
* Ability to analyse model behaviour, troubleshoot issues and demonstrate measurable improvements
* Experience working with consumer-facing AI products
* Comfort working with uncensored AI models, explicit adult/NSFW content and sensitive moderation material

BENEFITS:
* Fully remote working within Europe
* Long-term collaboration, with B2B contracting preferred
* 20 working days of paid leave
* $100 monthly health insurance allowance
* Equipment budget
* Access to AI development tools
* Learning and development support
* Annual team gathering
* Opportunity to work on self-hosted LLMs powering consumer-facing AI products
* And many more #J-18808-Ljbffr

📌 Mid/Senior Ai Llm Engineer (Toscana)
🏢 David Kennedy Recruitment
📍 Toscana