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From the employer's careers site First seen 27 Jun 2026 · Still live on 29 Oct 2026

Machine Learning Engineer, Ads Optimization & Ads Marketplace Quality

Reddit Remote - United States Remote senior full-time

Salary

$185,800-$303,400 USD per year

Apply on Reddit

Description

Reddit is seeking a Machine Learning Engineer to join the Ads Optimization and Ads Marketplace Quality (AMQ) organizations. The successful candidate will work on designing and implementing optimization algorithms for auctions, bidding strategies, and pacing that balance advertiser performance, user experience, and marketplace efficiency.

Responsibilities:

  • Design and implement optimization algorithms for auctions, bidding strategies, and pacing
  • Own systems end-to-end: from problem formulation and algorithm design to experimentation, production deployment, and ongoing iteration
  • Work across Ads Optimization or Ads Marketplace Quality to deliver measurable wins for advertisers and Redditors

Requirements:

  • 3–5+ years of experience building, deploying, and operating machine learning systems in production
  • Strong programming skills in Python, Java, Go, or similar languages
  • Experience designing scalable data processing systems
  • Demonstrated ability to translate ambiguous product or business problems into solutions and to improve measurable metrics

Preferred Qualifications:

  • Experience with advertising/auction systems, online marketplaces, or search/ranking systems at scale
  • Familiarity with large-scale, real-time decision systems and low-latency production environments
  • Background in feature engineering, model optimization, and production monitoring for ML systems

Benefits:

  • Comprehensive Healthcare Benefits and Income Replacement Programs
  • 401k with Employer Match
  • Global Benefit programs that fit your lifestyle
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave

Skills

Required

Nice to have

  • advertising/auction systems
  • online marketplaces
  • search/ranking systems
  • large-scale decision systems
  • feature engineering

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/reddit/jobs/8029120

Apply on Reddit