Resumo da vaga

Machine Learning Engineer, Ads Optimization & Ads Marketplace Quality

Requisitos e responsabilidades

Conteúdo da vaga extraído em seções para revisão mais rápida.

Team Description

  • Designing the auction and bidding mechanisms that decide which ads show to which users and at what price.
  • Building optimization systems that help advertisers achieve their goals (e.g., conversions, ROAS) under budget and delivery constraints.
  • Ensuring marketplace quality by improving user experience with ads, fighting ad blindness, and increasing valuable ad opportunities on the platform.

Role Description

  • Design and implement optimization algorithms for auctions, bidding strategies, and pacing that balance advertiser performance, user experience, and marketplace efficiency.
  • Own systems end-to-end: from problem formulation and algorithm design to experimentation, production deployment, and ongoing iteration.
  • Work across Ads Optimization (bid strategies, budget optimization, pacing) or Ads Marketplace Quality (ad matching, ad load, quality controls) to deliver measurable wins for advertisers and Redditors.

Role Description

  • IC3 MLEs are strong individual contributors who can independently own scoped projects, ship models and services, and contribute to experimentation and measurement.
  • IC4 MLEs lead more complex or multi-quarter initiatives, set technical direction for key parts of the bidding/auction/pacing stack, and mentor other engineers while remaining hands-on.

Auction, Bidding, and Pacing Systems

  • 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, revenue, delivery smoothness, fairness, and user experience).

Details

  • 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.
  • Improve ad matching and ranking by incorporating new quality and relevance signals into bidding and auction decisions.
  • Inform policies around ad load and eligibility that protect user experience while increasing high-quality ad opportunities.
  • 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).
  • Bidding, pacing, or budget optimization
  • Auction design, mechanism design, or marketplace quality
  • Campaign performance optimization (e.g., CTR/CVR, CPA, ROAS)

Marketplace Quality and Optimization

  • Partner with Ads Marketplace Quality to:
  • Improve ad matching and ranking by incorporating new quality and relevance signals into bidding and auction decisions.
  • 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.

Required Qualifications

  • 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, Redis).
  • Demonstrated ability to translate ambiguous product or business problems into solutions and to improve measurable metrics.

Required Qualifications

  • 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 black-box tooling.

Preferred Qualifications

  • 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, real-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, Eng) 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 related quantitative field.

Potential Teams

  • Ads Optimization (bid strategies, conversion/ROAS optimization, pacing and budget allocation)
  • Ads Marketplace Quality (ad matching, load, and quality controls)

Potential Teams

  • Comprehensive Healthcare 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
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FocoAds EngineeringÁrea da vaga
Sinal de senioridadeNível abertoNível do candidato
StackJava, Python, SparkSkills principais
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