
Mid/Senior AI LLM Engineer
Posted Oct 21

Posted Oct 21
This is a fully remote position, open to applicants in Europe.
• Fine-tune open-weight large language models utilizing methods such as supervised fine-tuning (SFT), LoRA, QLoRA, DPO, and GRPO.
• Create and sustain training datasets along with model evaluation frameworks.
• Enhance conversational memory, ensure personality consistency, and improve the quality of long-running dialogues.
• Develop capabilities for multilingual conversations and group interaction behaviors.
• Identify model failures and optimize training data, prompts, and classifiers.
• Execute GPU-based training experiments, troubleshoot issues, and evaluate model performance.
• Deploy enhanced models into production, track results, and refine performance iteratively.
• Collaborate with the LLM Tech Lead, CTO, Product, Web, and DevOps teams to implement model enhancements.
• Demonstrated hands-on experience in fine-tuning open-weight LLMs and deploying them in a production environment.
• Proficient in Python programming.
• Practical experience with PyTorch and Hugging Face.
• Hands-on experience in GPU-based model training and debugging.
• Familiarity with supervised fine-tuning and parameter-efficient fine-tuning techniques, including LoRA or QLoRA.
• Knowledge of preference optimization techniques such as DPO or GRPO.
• Capability to independently construct training datasets and model evaluation frameworks.
• Experience in developing consumer-facing AI products.
• Comfort in working with uncensored AI models, explicit adult/NSFW content, and sensitive moderation material.
• Ability to diagnose model behavioral issues and translate insights into measurable enhancements.
• Fully remote work opportunities available within Europe.
• Long-term collaboration preferred, with B2B contracting.
• 20 working days of paid leave annually.
• $100 monthly allowance for health insurance.
• Budget for equipment procurement.
• Access to AI development tools.
• Support for learning and development.
• Annual team gatherings.
• Opportunity to work on self-hosted LLMs that power consumer-facing AI products.
Pfizer
Get handpicked remote jobs straight to your inbox weekly.