Staff Machine Learning Engineer at DoorDash (San Francisco)

DoorDash connects customers with local businesses for delivery, from restaurants to grocery, retail and its own DashMart stores. We are hiring a Causal Machine Learning Engineer to help build the causal ML foundation behind how DoorDash grows New Verticals. We are looking for someone who has built or deeply worked on production causal systems: uplift models, heterogeneous treatment effect models, surrogate metrics, experimentation platforms, counterfactual policy evaluation, promotion optimization, or ma

Key responsibilities

• Design, build, and productionize causal ML systems that influence real marketplace decisions across New Verticals
• Build uplift / heterogeneous treatment effect models for consumer lifecycle value, promotions, retention, and reactivation
• Develop counterfactual evaluation frameworks for ranking, recommendations, search, promotions, substitutions, and marketplace interventions
• Build systems that connect experimentation, observational data
• Design surrogate metrics and early indicators that help teams move faster while preserving long-term marketplace health
• Partner with econometrics and analytics leaders to choose the right methods: doubly robust estimation, IV, diff-in-diff, synthetic controls

Requirements

• Deep practical experience with causal inference, econometrics, experimentation, or causal ML
• Experience shipping models or decision systems in production, ideally in consumer marketplaces, ads, recommendations, search, pricing, promotions
• Strong judgment around the tradeoffs between randomized experiments, observational estimation, and model-based decisioning
• Comfort debating and applying methods such as doubly robust estimation, double ML, IV, diff-in-diff, CUPED, uplift modeling, contextual bandits
• Build reliable pipelines, train models, evaluate them rigorously, and partner with platform teams to put them into production
• Connect methods to business decisions, not just optimize offline metrics

Location and schedule

• Onsite in San Francisco, California

Salary and benefits

US base salary $203,500 to $299,300 a year. DoorDash also offers benefits; the full list is on the posting.

How to apply

Apply on the company's own site.