Staff Machine Learning Engineer, Causal Inference

DoorDash

$203K — $299K *
Consumer Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Deep practical experience with causal inference, econometrics, experimentation, or causal ML.
  • Experience shipping models or decision systems in production, ideally in consumer marketplaces or high-scale settings.
  • Strong judgment regarding tradeoffs between randomized experiments and observational estimation.
  • Comfort with methods like doubly robust estimation, double ML, IV, and uplift modeling.
  • Strong ML engineering skills to build reliable pipelines and evaluate models rigorously.
  • Ability to connect causal methods to business decisions, moving beyond just optimizing metrics.
  • Excellent cross-functional collaboration skills with ML engineers, economists, and product managers.

Responsibilities

  • Design, build, and productionize causal ML systems for marketplace decisions.
  • Develop uplift models for consumer lifecycle value and promotions.
  • Create counterfactual evaluation frameworks for various marketplace interventions.
  • Integrate experimentation, observational data, and ML decisioning for better tradeoffs in slow experiments.
  • Design surrogate metrics for quicker decision-making while maintaining marketplace health.
  • Collaborate with econometrics leaders to select appropriate causal methods.
  • Translate causal models into production systems influencing business decisions.

Benefits

  • 401(k) plan with employer matching.
  • 16 weeks of paid parental leave.
  • Wellness benefits and commuter benefits match.
  • Comprehensive medical, dental, and vision benefits.
  • 11 paid holidays and paid sick leave.
  • Mental health program and family-forming assistance.
Full Job Description
About the Role

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 marketplace decisioning systems.

You will join a small, senior pod of causal ML and econometrics experts working across ML, Analytics, Product, and Engineering. The mandate is to build the causal spine for a large-scale consumer marketplace.
You're excited about this opportunity because you will...
  • 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, and ML decisioning so teams can make better tradeoffs when randomized experiments are slow, noisy, or incomplete.
  • 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, double ML, CUPED-style variance reduction, contextual bandits, off-policy evaluation, and related approaches.
  • Translate causal models into production systems that can shape decisions in ranking, targeting, budget allocation, inventory-aware discovery, and consumer growth.
  • Raise the bar for causal reasoning across ML teams: when to trust a model, when not to, and how to debug causal claims in a real marketplace.
We're excited about you because you have...
  • 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, logistics, fintech, or other high-scale settings.
  • 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, and off-policy evaluation.
  • Strong ML engineering ability: you can build reliable pipelines, train models, evaluate them rigorously, and partner with platform teams to put them into production.
  • Strong product judgment: you can connect methods to business decisions, not just optimize offline metrics.
  • The ability to operate across functions with ML engineers, economists, data scientists, product managers, and business leaders.


Compensation

The successful candidate's starting pay will fall within the pay range listed below and is determined based on job-related factors including, but not limited to, skills, experience, qualifications, work location, and market conditions. Base salary is localized according to an employee's work location. Ranges are market-dependent and may be modified in the future.

In addition to base salary, the compensation for this role includes opportunities for equity grants. Talk to your recruiter for more information.

DoorDash cares about you and your overall well-being. That's why we offer a comprehensive benefits package to all regular employees, which includes a 401(k) plan with employer matching, 16 weeks of paid parental leave, wellness benefits, commuter benefits match, paid time off and paid sick leave in compliance with applicable laws (e.g. Colorado Healthy Families and Workplaces Act). DoorDash also offers medical, dental, and vision benefits, 11 paid holidays, disability and basic life insurance, family-forming assistance, and a mental health program, among others.

To learn more about our benefits, visit our careers page here.

See below for paid time off details:
  • For salaried roles: flexible paid time off/vacation, plus 80 hours of paid sick time per year.
  • For hourly roles: vacation accrued at about 1 hour for every 25.97 hours worked (e.g. about 6.7 hours/month if working 40 hours/week; about 3.4 hours/month if working 20 hours/week), and paid sick time accrued at 1 hour for every 30 hours worked (e.g. about 5.8 hours/month if working 40 hours/week; about 2.9 hours/month if working 20 hours/week).


The national base pay range for this position within the United States, including Illinois and Colorado.

$203,500-$299,300 USD

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