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Open nowPosted 4 days ago

Mid/Senior AI LLM Engineer

David Kennedy153 open roles

Where
Paris, France; London, United Kingdom; Lisbon, Portugal; Milan, Italy; Rome, Italy; Berlin, Germany; Athens, Greece; Barcelona, Spain; Bari, Italy; Split, Croatia; Copenhagen, Denmark; Oslo, Norway; Tallinn, Estonia; Limassol, Cyprus; Budapest, Hungary; Florence, Italy; Amsterdam, Netherlands; Stockholm, Sweden; Warsaw, Poland; Kraków, Poland; Lublin, Poland; Opole, Poland; Tokyo, Japan; Seoul, South Korea; Beijing, China; Taipei City, Taiwan; Hong Kong; Chongqing, China; Bangkok, Thailand; Manila, Philippines; Kuala Lumpur, Malaysia; Singapore; Hanoi, Vietnam; Hanover, Germany; Wuhan, China; Shanghai, China; Hangzhou, China; Mumbai, India; Doha, Qatar; Tel Aviv-Yafo, Israel; Riyadh, Saudi Arabia; Madrid, Spain
Work mode
Remote
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Your applicationOpen nowMid/Senior AI LLM EngineerDavid Kennedy · Paris, France; London, United Kingdom; Lisbon, Portugal; Milan, Italy; Rome, Italy; Berlin, Germany; Athens, Greece; Barcelona, Spain; Bari, Italy; Split, Croatia; Copenhagen, Denmark; Oslo, Norway; Tallinn, Estonia; Limassol, Cyprus; Budapest, Hungary; Florence, Italy; Amsterdam, Netherlands; Stockholm, Sweden; Warsaw, Poland; Kraków, Poland; Lublin, Poland; Opole, Poland; Tokyo, Japan; Seoul, South Korea; Beijing, China; Taipei City, Taiwan; Hong Kong; Chongqing, China; Bangkok, Thailand; Manila, Philippines; Kuala Lumpur, Malaysia; Singapore; Hanoi, Vietnam; Hanover, Germany; Wuhan, China; Shanghai, China; Hangzhou, China; Mumbai, India; Doha, Qatar; Tel Aviv-Yafo, Israel; Riyadh, Saudi Arabia; Madrid, Spain

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. David Kennedy postings stay open a median of 10 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: posted 4 days ago

David Kennedy median: 10 days open

The posting

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!!!
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