Mid/Senior AI LLM Engineer
At David Kennedy Recruitment · Paris, France; London, United Kingdom; Lisbon, Portugal; Milan, Italy; Rome, Italy; Berlin, Germany; Athens, Greece; Bar…
- Data and ML
- Senior
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Where you can work from
Open to Europe, Cyprus, Germany and 14 more
“Location: Europe, Remote”
From the job description.
“Paris, France”
From the job board field.
“London, United Kingdom”
From the job board field.
“Lisbon, Portugal”
From the job board field.
“Milan, Italy”
From the job board field.
“Rome, Italy”
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Which countries count as Europe?
Albania, Andorra, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Faroe Islands, Finland, France, Germany, Gibraltar, Greece, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Kosovo, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, United Kingdom, Vatican City.
Not everyone includes Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Russia, Türkiye, so for those we say “Unclear”.
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- Posted
- 21 October 2026
- First seen by us
- 22 October 2026
- Last checked
- 28 minutes ago
Job description
From David Kennedy Recruitment’s job post, as they wrote it.
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.
Read the full description
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!!!
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