SA
San Francisco, California, United States· Full-time
$290.4K – $363K/yr
PythonMachine LearningAI
DU
Active4mo ago
Senior Staff Machine Learning Engineer, Ads
Role overview
Job description
About the Team The Ads & Promos Delivery team powers the last-mile delivery of ads and promotions, two marketing products offered to merchants, connecting merchant intent with consumer demand across search and discovery experiences. As a Senior Staff Engineer, you will lead the technical direction for AI-first experiences, including ranking and relevance systems that sit at the core of our ads marketplace and shape how ads are selected, ordered, and personalized in real time across all verticals. You will design and build next-generation AI-first ranking systems using state-of-the-art techniques such as sequence modeling, deep learning, and large language models (LLMs). Your work will span query understanding, user and merchant representation learning, contextual relevance, and multi-objective optimization, balancing advertiser value, consumer experience, and marketplace health at scale.
…About this listing
- Listed from DoorDash USA's careers site via Greenhouse · last confirmed on the source 24 Oct 2026
- Posted 3 Jun 2026
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What they are looking for
Skills & requirements
Qualification
As DoorDash expands into 40+ global markets and new verticals such as Grocery and Retail, this role offers a rare opportunity to define how modern AI, including sequential models and LLM-powered decisioning, reshapes ads relevance in a closed-loop marketplace; About the Role Apply state-of-the-art machine learning and LLM techniques to problems across personalization, query understanding, user and content understanding; Rigorously evaluate ML and LLM models using a combination of offline analysis and online experimentation, designing metrics and experiments that clearly measure quality, impact, and tradeoffs; We’re excited about you because you have… 5+ years of experience building, deploying, and scaling ML and AI models for large-scale, user-facing or data-intensive products
Department · Ads Engineering
Hiring company
DoorDash USA
View the company profile, current openings and hiring details.
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