Senior Machine Learning Engineer, Ads - Quora (Remote)

The role

You will develop and improve ads ranking models for the Quora product. This role involves end-to-end ownership of machine learning systems including data pipelines, model training, and production integration.

What you will do

• Develop and improve ads ranking models
• Take end to end ownership of machine learning systems
• Evaluate and apply advances in deep learning and recommendation modeling
• Collaborate with ML platform and product engineers
• Partner with product, data science, and engineering teams
• Identify new opportunities to apply machine learning to the Ads product

Required qualifications

• Availability for meetings and impromptu communication during Quora's coordination hours (Mon-Fri: 9am-3pm Pacific Time)
• 4+ years of professional software development experience in machine learning
• Hands-on experience developing and deploying ads ranking models at scale
• Experience evaluating ranking models through offline analysis and online experiments
• Experience using AI-assisted development tools for coding, testing, debugging, or data analysis
• Hands-on experience building and deploying deep learning models with PyTorch or TensorFlow
• Good understanding of mathematical foundations of machine learning algorithms
• Strong Python programming skills and experience writing maintainable production ML code
• BS, MS or PhD in Computer Science, Engineering or a related technical field

Nice to have

• Experience with modern ranking architectures, such as feature interaction networks, attention-based user-sequence models, and multi-task learning
• Understanding of how ranking predictions and calibration interact with bidding and auctions
• Experience with leading large-scale multi-engineer projects
• Experience addressing ranking challenges such as sparse or delayed conversion labels, sampling and exposure bias, cold-start users, or training-serving inconsistencies
• Experience with generative recommender systems
• Effective communicator with strong leadership skills
• Passion for Quora's mission and goals

Benefits

• Medical/dental/vision coverage
• Equity refreshers
• Remote work reimbursement
• Paid time off
• Employee assistance programs

Before you apply

• Check employment eligibility by country
• Final candidates will undergo identity verification and a comprehensive background check

About the company

Quora is a privately held, remote-first company with a mission to grow the world's collective intelligence through its Quora and Poe platforms.