Principal Machine Learning Engineer, Ads & Promos Delivery
Doordashusa
Sunnyvale, CA, United States
$268,600 - $395,000 usd py
On-site
State-of-the-art machine learning
Large-scale ml modeling
Applied engineering
The Ads & Promos Delivery team powers the last-mile delivery of ads and promotions, connecting merchant intent with consumer demand across search and discovery experiences
Job Summary
The Ads & Promos Delivery team powers the last-mile delivery of ads and promotions, connecting merchant intent with consumer demand across search and discovery experiences.
As a Principal 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.
This is a high-impact role for someone who enjoys combining economic intuition, large-scale ML modeling, and applied engineering to solve complex real-world optimization problems.
Matching Summary
The Ads & Promos Delivery team powers the last-mile delivery of ads and promotions, connecting merchant intent with consumer demand across search and discovery experiences.
Salary
$268,600 - $395,000 USD
Skills & Requirements
Must-have
state-of-the-art machine learning
large-scale ML modeling
applied engineering
real-world optimization problems
deep learning
large language models
information retrieval
ranking and relevance
recommendation systems
natural language processing
content understanding
Python, Java, or C++
PyTorch, TensorFlow, or XGBoost
Nice-to-have
economic intuition
cross-team alignment
emerging research
prompt engineering
retrieval-augmented generation (RAG)
Generative RecSys
user modeling
open-source projects
applied research
Key Requirements
5+ years of experience
BS, MS, or PhD in Computer Science, Engineering, or related field, or equivalent practical experience