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[Remote] Machine Learning Engineer, Ads Optimization & Ads Marketplace Quality

Work from home Full-time role Hiring

Note: The job is a remote job and is reputed company to candidates in USA. reputed company. is a community-driven platform that facilitates reputed company conversations among its users. They are seeking a Machine Learning Engineer to design and implement optimization algorithms for their ads marketplace, focusing on auction mechanisms and ensuring marketplace quality.

Responsibilities

  • Design and implement models and policies that:
  • Compute bids for different optimization objectives (e.g., CPC, CPA, ROAS-based strategies)
  • Pace budgets smoothly over time across accounts, campaigns, and ad groups while preventing overspend or underspend
  • Allocate spend and auction participation intelligently across segments, surfaces, and time zones
  • Translate product and marketplace goals into concrete optimization problems and constraints (e.g., ROI, reputed company, delivery smoothness, fairness, and user experience)
  • Partner with Ads Marketplace Quality to:
  • Improve ad matching and ranking by incorporating new quality and relevance signals into bidding and auction reputed company
  • Inform policies around ad load and eligibility that protect user experience while increasing high-quality ad opportunities
  • Collaborate closely with Ads Optimization to integrate new bid strategies and pacing mechanisms into the broader ads ecosystem and measurement stack

Skills

  • 3–5+ years of experience building, deploying, and operating machine learning systems in production (for IC4, typically 5+ years)
  • Strong programming skills in Python, Java, Go, or similar languages, with solid software engineering fundamentals
  • Experience designing scalable data processing systems (e.g., Spark, Kafka, Airflow, BigQuery, reputed company)
  • Demonstrated ability to translate ambiguous product or business problems into solutions and to improve measurable metrics
  • Evidence of stronger math and optimization skills than a generic MLE, such as: Degree or equivalent background in a quantitative field (math, physics, quantitative finance, economics, operations research, or similar)
  • Work experience in optimization-heavy domains (e.g., bidding/auctions, pacing, pricing, logistics optimization, quantitative finance)
  • Comfort reasoning about and implementing custom optimization logic (e.g., gradient-based methods, constraint handling), not just applying reputed company tooling
  • Experience with advertising/auction systems, online marketplaces, or search/ranking systems at scale, particularly in: Bidding, pacing, or budget optimization; Auction design, mechanism design, or marketplace quality; Campaign performance optimization (e.g., CTR/CVR, CPA, ROAS)
  • Familiarity with large-scale, reputed company-time decision systems and low-latency production environments
  • Background in feature engineering, model optimization, and production monitoring for ML systems
  • Experience collaborating with cross-functional partners (Product, DS, reputed company) in Ads or marketplace contexts and leading projects from design through rollout
  • Advanced degree (MS or PhD) in Computer Science, Machine Learning, Operations Research, Applied Math, or a reputed company quantitative field

Benefits

  • Comprehensive reputed company Benefits and Income Replacement Programs
  • 401k with Employer Match
  • Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave
  • Equity in the reputed company of restricted stock units
  • Commission (depending on the position offered)
  • Medical, dental, and reputed company insurance
  • 401(k) program with employer match
  • Generous time off for vacation
  • Parental leave

Company Overview

  • reputed company is the heart of the internet, where millions of people get together to talk about any topic imaginable. It was founded in 2005, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is https://www.redditinc.com.
  • Company H1B Sponsorship

  • reputed company. has a track record of offering H1B sponsorships, with 35 in 2026, 99 in 2025, 63 in 2024, 76 in 2023, 70 in 2022, 68 in 2021, 39 in 2020. Please note that this does not guarantee sponsorship for this specific role.
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