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Staff Machine Learning Engineer, Retrieval

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care mo

In inglese

Company

Reddit

Location

Remote - United States

Status

Open

Posted

2026-09-16T22:20:41+00:00

Reddit's Ads Retrieval ML team is hiring a Staff Machine Learning Engineer to set technical direction for the models that decide which ad campaigns are eligible to compete in the ads funnel. The work covers candidate generation, two-tower and embedding models, nearest-neighbor vector retrieval, sampling and hard-negative mining, evaluation, and online experiments. The posting asks for 7+ years of industry experience, production deep learning in TensorFlow or PyTorch, a retrieval or recommender background, and prior technical leadership. The role is remote within the United States, and mentoring engineers is explicit.