qlora jobs in San Diego

Design and build specialized small language models (SLMs) for healthcare, with expertise in post-training techniques (SFT, RLHF, DPO, PPO, GRPO) and reasoning-model training. Develop healthcare-grade evaluation frameworks covering hallucination detection, factuality, bias/fairness, and clinical benchmarking, while performing red teaming and adversarial testing to identify alignment failures and unsafe behaviors.…See more Apply PHI/HIPAA-aware data handling and produce model documentation for regulated clinical deployment. Work with open-weight foundation models (Llama, Qwen, Mistral, DeepSeek) using PyTorch and distributed training frameworks.

Design, build, and ship LLM-powered capabilities end to end—from prototyping and fine-tuning models to deploying production agents and retrieval systems. Own the full stack: prompt and context engineering, multi-step agent design with tool calling, RAG systems (embeddings, chunking, hybrid search, reranking), fine-tuning on multi-GPU with LoRA/QLoRA, evaluation and tracing infrastructure, and clean APIs for other engineers.…See more Work in a secure, distributed environment where the platform runs on customer compute, cloud, or hybrid setups, requiring expertise with both commercial and self-hosted models.