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Unity

Senior Machine Learning Engineer, Content Understanding – Moderation

Unity

. Execute the multimodal content representation strategy across video, image, playable, audio, and text .

Posted 9/15/2026full-timeBeijing • ChinaSenior💰 CN¥341,000 - CN¥943,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in multimodal machine learning, particularly in combining vision and language, with a focus on content moderation and trust and safety systems. Proficient in building evaluation infrastructure and adapting foundation models for production use while ensuring compliance with regulatory standards.

Highest-signal resume keywords
Multimodal Machine LearningContent Moderation SystemsPython ProgrammingProduction ML SystemsEvaluation Infrastructure

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Multimodal Machine LearningPython ProgrammingProduction ML SystemsContent ModerationEvaluation StandardsFoundation Model AdaptationFine-TuningDistillationOptimization for LatencyCost Tradeoffs
Soft Skills
Systems ThinkingAccountability
Industry Keywords
Trust and SafetyContent ModerationRegulatory ComplianceAdvertising StandardsDSAChild-Directed Treatment

Tech Stack

Tools & technologies
Distributed SystemsPython

About the role

Key responsibilities & impact
  • Execute the multimodal content representation strategy across video, image, playable, audio, and text
  • Build content-understanding foundations serving both relevance and moderation
  • Partner with product, engineering, and science teams to translate regulatory and contractual obligations into measurable ML objectives
  • Define evaluation standards where labels are scarce, noisy, and contested
  • Build evaluation and labeling infrastructure
  • Build shared foundations including content embeddings, game-level features, evaluation harnesses, and labeling pipelines
  • Power recommendations for billions of users while protecting them from harmful content

Requirements

What you’ll need
  • Experience in multimodal machine learning combining vision and language, with video experience especially relevant
  • Experience owning a trust and safety, content moderation, brand safety, or policy enforcement system in production
  • Experience operating where labels are scarce, ambiguous, or disputed
  • Experience adapting foundation models for production use, including fine-tuning, distillation, and optimization for latency and cost
  • Strong programming skills in Python
  • Experience running production ML systems on a serving path
  • Fluency in latency, throughput, and cost tradeoffs
  • Experience reviewing and remaining accountable for production code, including code produced with AI assistance
  • Familiarity with regulatory and policy regimes affecting advertising content, such as DSA, child-directed treatment, and regional advertising standards (optional)
  • Strong systems thinking and ability to reason about performance, scalability, reliability, and cost tradeoffs in distributed systems (optional)
  • Sufficient knowledge of English for professional verbal and written exchanges

Benefits

Comp & perks
  • Equity awards
  • Participation in company incentive plans, such as annual discretionary bonuses or sales commissions
  • 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