Senior Ai Retrieval Systems Engineer

Shape AI retrieval systems at lululemon as a Senior Software Engineer, using RAG, GraphRAG, and semantic search in onsite work. Influence enterprise technical direction.Within the Enterprise Data & AI team, this senior engineer builds context-rich systems for LLM-powered applications. You will address data ambiguity, support evidence-based reasoning, and collaborate with AI/ML Science teams to improve correctness and reduce hallucination risk. The work spans multiple product teams and services.Key Responsibilities:
Build high-quality context systems for enterprise LLM applicationsDevelop retrieval pipelines using RAG and GraphRAGImplement embeddings, hybrid search, and semantic searchCollaborate with AI/ML Science teams on model correctnessImprove trust in AI-generated outputs through validation practicesRequirements:
Six to ten years of software development experienceExperience with knowledge representation for LLM-powered applicationsFamiliarity with search, recommender, and hybrid retrieval architecturesAbility to decompose complex problems into scalable solutionsExperience designing integrations across complex domain areasUse senior engineering judgment to develop trusted AI retrieval, semantic search, and knowledge representation systems at lululemon.
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