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Unity

Senior Machine Learning Engineer, Advertiser Growth

Unity

. Design and optimize budget-pacing controllers using PID and probabilistic forecasting .

Posted 9/17/2026full-timeRemote • California • United StatesSenior💰 $165,600 - $273,400 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in designing and optimizing budget-pacing controllers and backend systems, with a strong focus on Generative AI model integration and experimentation infrastructure. Proficient in real-time stream processing and financial reconciliation to enhance advertiser performance and ROI.

Highest-signal resume keywords
Software Engineering ExperienceBackend Systems DevelopmentGenerative AI Model IntegrationReal-Time Stream ProcessingExperimentation Platform Scaling

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
JavaGoScalaPID ControlProbabilistic ForecastingA/B TestingBilling Pipeline ArchitectureData AnalysisSpend-Prediction AlgorithmsMetric Design
Soft Skills
MentoringLeadership
Tools & Technologies
KafkaFlinkSpark
Certifications & Qualifications
Advanced Degree in Computer Science
Industry Keywords
Ads Delivery SystemsBudget Control SystemsMarketplace ContextFinancial ReconciliationEvent-Based Charging

Tech Stack

Tools & technologies
JavaKafkaScalaSparkGo

About the role

Key responsibilities & impact
  • Design and optimize budget-pacing controllers using PID and probabilistic forecasting
  • Smooth advertiser spend across time zones and traffic spikes
  • Lead backend integration of Generative AI models, including Diffusion and LLMs, to automate image and video creative generation
  • Build and scale experimentation infrastructure for A/B tests, switchback tests, and long-term holdouts
  • Measure marketplace changes’ impact on advertiser ROI and platform health
  • Architect and maintain high-throughput billing pipelines processing billions of events
  • Ensure billing accuracy and financial reconciliation between real-time ad delivery and financial systems
  • Analyze financial and marketplace datasets to optimize spend velocity and advertiser performance
  • Use experimentation results to tune pacing and billing logic
  • Lead complex, multi-quarter technical roadmaps and mentor senior engineers

Requirements

What you’ll need
  • Advanced degree in computer science or relevant engineering-related field or equivalent experience
  • 6+ years of software engineering experience, including 3+ years working on ads delivery systems
  • Extensive experience building and operating large-scale, low-latency backend systems using languages like Java, Go, or Scala
  • Deep familiarity with budget control systems, feedback loops, or spend-prediction algorithms
  • Proven experience building or scaling experimentation platforms
  • Deep understanding of variance reduction, interference/network effects, and metric design in a marketplace context
  • Experience with mission-critical pipelines such as billing, payments, or clearinghouses
  • Experience or strong technical interest in backend workflows for serving, scaling, and storing Generative AI models for creative asset generation
  • Proficiency with real-time stream processing using Kafka, Flink, or Spark, applied to event-based charging and real-time performance feedback
  • Ability to lead complex, multi-quarter technical roadmaps and mentor senior engineers
  • Experience embracing AI as a strategic advantage in engineering and following established best practices for code quality and security
  • Sufficient knowledge of English for professional verbal and written exchanges

Benefits

Comp & perks
  • Comprehensive health, life, and disability insurance
  • Commute subsidy
  • Employee stock ownership
  • Competitive retirement/pension plans
  • Generous vacation and personal days
  • Leave and family-care programs for new parents
  • Office food snacks
  • Mental Health and Wellbeing programs and support
  • Employee Resource Groups
  • Global Employee Assistance Program
  • Training and development programs
  • Volunteering and donation matching program
  • Equity awards may be available
  • Participation in company incentive plans, such as annual discretionary bonuses or sales commissions, may be available