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Senior SWE/MLE - Bidder Quality - Pricing Algorithms

Moloco

$170,000 - $220,000
Oct 7, 2025
Seattle, WA, US
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Moloco is looking to solve challenging problems in a complex multi-causal environment within their ML-powered performance ads business by determining bidding/pricing decisions, driving performance improvements and cost reductions, and stabilizing their core system.

Requirements

  • Proven experience working in the adtech space—preferably with exposure to auction-based systems and real-time bidding environments.
  • Strong mathematical or statistical background (e.g., optimization, probability, hypothesis testing).
  • Strong system design skills, with experience in designing scalable, fault-tolerant distributed systems.
  • Familiarity with cost-aware engineering practices—ability to optimize for compute, memory, and latency trade-offs.
  • Hands-on coding ability in production-level codebases (e.g., C++, Java, Go, or Python).
  • Working knowledge of machine learning principles, particularly in applied settings like ranking, predictions, or decision systems.
  • Ph.D degree in Applied Mathematics, Operations Research, Management Science or related field a plus.

Responsibilities

  • Design and implement real-time bidding and pricing algorithms for a high-scale advertising system (7M QPS), using optimization techniques, auction theory, and machine learning fundamentals.
  • Leverage adtech experience to improve auction outcomes and bidding strategies, drawing from a strong understanding of advertising ecosystem dynamics (e.g., DSPs, SSPs, auctions).
  • Develop scalable and cost-efficient ad serving systems, with strong system design principles to support performance advertising at scale.
  • Conduct deep root-cause analyses of ad performance issues, using statistical reasoning and quantitative methods to drive unbiased insights and corrective actions.
  • Identify opportunities to optimize the ad delivery pipeline, including reducing system or serving costs while maintaining performance, using efficient algorithms and data structures.
  • Collaborate cross-functionally with product, infra, and account teams to anticipate the business impact of system changes and define future product roadmaps with a strong sense of product intuition and operational awareness.
  • Stay informed on system-level and data-level changes, and work with collaborators to improve infrastructure and ML model performance in response.

Other

  • 6+ years of overall work experience (industry or postgraduate) in research related fields focused on optimization of market prices or ML systems
  • Solid understanding of business metrics, with an ability to translate technical changes into business outcomes.
  • Lead research projects and may lead small teams of MLEs as part of a broader group of cross functional collaborators
  • Bachelor's Degree in Computer Science with mathematical (ex, stats) coursework
  • Creating a diverse workforce and a culture of inclusion and belonging is core to our existence.