Tech Lead, LLM & Generative AI (Full Remote - Germany)

8+ years of engineering experience, with significant portion dedicated to shipping ML/LLM features to millions of active users. Proficient in Python/PyTorch and comfortable with the modern LLM stack (vLLM, HuggingFace, fine-tuning pipelines, eval frameworks). Comfortable working with NSFW content and understanding technical rigor for moderation. Intuition for LLM alignment and how parameters affect chatbot behavior. Doer mindset valuing velocity and shipping production solutions. Owner mindset, obsessing over metrics, regressions, and user experience.

Architect the system and mentor the LLM team, while writing production code. Optimize context windows, memory/RAG retrieval, and inference latency. Drive strategy for SFT and RLHF/DPO. Manage data sourcing, labeling, and cleaning for model steerability. Design and train custom classifiers for content moderation.