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Machine Learning Engineer (Senior - Senior Staff Level)

Wonder • New York, NY, US • published 2026-10-23 20:05:56.662991

Description

**About The Opportunity** We're hiring various roles from Senior level to Senior Staff level Machine Learning Engineers. You will own model architecture across several connected technical areas: search ranking, homepage and topic recommendations, retrieval, and query understanding. You will be accountable for how those pieces fit together, not only for any single model. You will set technical direction alongside other engineers, product managers, and platform partners. You will raise the bar on how the organization builds, evaluates, and operates models, and mentor the engineers around you through design reviews, code reviews, and direct feedback. We expect you to challenge technical decisions across teams when the engineering case is clear, and to bring evidence when you do. Our team practices end to end project ownership, and our work focuses heavily on personalized recommendation, retrieval, and classification from catalog content and clickstream. Deep neural networks, learned embeddings and approximate nearest neighbor retrieval, transfer learning from pre\-trained large scale models, calibration, classic regressions, fine tuning, and large language models all have a place in o...

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