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Machine Learning Engineer, Growth

Whatnot· Engineering
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Hybrid (San Francisco, CA), Hybrid (New York, NY), Hybrid (Los Angeles, CA), Hybrid (Seattle, WA), Remote$190k - $300kFull-timePosted 4w ago

About the role

Machine Learning Engineer role on the Buyer Growth team to drive top-of-funnel growth and first-time buyer success through ML personalization, targeting, and retention models. Remote-friendly, multiple US locations.

Responsibilities

  • Lead the design, development, and productionization of ML models that power user acquisition, activation, and retention (e.g., ranking models, targeting systems, uplift modeling).
  • Own the full ML lifecycle: build and own data pipelines, feature engineering, model training, deployment, and online experimentation. Build feedback loops from postbacks, conversions, and downstream revenue signals.
  • Identify and prioritize high-impact opportunities where machine learning can unlock growth, collaborating with product, engineering, data, and marketing stakeholders.
  • Drive technical excellence and establish ML best practices across the Buyer Growth team.

Qualifications

  • 5+ years of industry experience building and deploying ML systems at scale.
  • Demonstrated success in leading end-to-end ML projects that drove measurable business outcomes.
  • Deep expertise in personalization, ranking, or user modeling; strong intuition around user behavior in consumer products.
  • Advanced proficiency in Python, SQL, and common ML frameworks (e.g., PyTorch, TensorFlow, XGBoost).
  • Strong communication and leadership skills; ability to influence roadmap and align cross-functional teams.

Skills

Required:ML model development and deploymentPythonSQLML frameworks (PyTorch, TensorFlow)
Nice to have:XGBoost

Benefits

  • Flexible Time off Policy and Company-wide Holidays (including a spring and winter break)
  • Health Insurance options including Medical, Dental, Vision
  • Work From Home Support
  • Care benefits
  • Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally
  • Monthly allowance to dogfood the app
  • Parental Leave
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Whatnot

Whatnot is the largest livestream shopping platform in the U.S.

Whatnot is the largest livestream shopping platform in the U.S., connecting buyers and sellers in real-time across any category – from collectibles like trading cards to comics, fashion, sneakers, and more.

marketplacee-commerce
Company profileWebsite

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