Machine Learning Engineer, Discovery Recommendations
Epic Games4 months ago
Cary, NC, USAMid Level / Senior
H1B Sponsor
Responsibilities
- Design and implement retrieval, ranking, and reranking models using deep learning, including two-tower architectures, transformer-based sequence models, and embedding-based retrieval.
- Build user representation systems for personalized discovery.
- Build and optimize multi-stage candidate generation and impression allocation pipelines balancing relevance, diversity, and fair content exposure.
- Design and run A/B experiments, own holistic recommendation evaluation frameworks, and drive improvements from experimentation into production.
- Collaborate with analytics and content quality teams on genre classification, creator credibility, and content quality ranking signals.
- Own machine learning infrastructure decisions across batch, near-real-time, and streaming serving architectures.
Requirements
- 3–5+ years of experience building production recommendation or ranking systems, ideally in UGC, marketplace, or content discovery environments.
- Experience with deep learning for information retrieval and multi-stage recommendation pipelines covering candidate generation, scoring, and reranking.
- Ability to design and analyze A/B experiments while accounting for recommendation-system biases.
- Strong Python engineering skills and experience with PyTorch and large-scale data processing frameworks, preferably Spark.
- Comfort working in a cloud-based machine learning environment.
- Experience with explore/exploit strategies, content cold-start, or counterfactual evaluation methods for recommendation systems.
- Experience using content understanding models involving NLP, vision, or generative AI as ranking features.
- Familiarity with creator economy dynamics and the effects of recommendation design on content quality and creator incentives.
- Experience with PyTorch, TorchRec, Transformers, Ray, Databricks, and AWS.
- Passion for video games and/or experience with gaming analytics.
Benefits
- 100% employer-paid medical, dental, vision HRA, long-term disability, and life insurance premiums for employees and dependents.
- 401k with competitive company match.
- Free therapy and coaching through Modern Health for employees and dependents.
- Company events, company-wide paid breaks, unlimited PTO, and unlimited sick time.
- Paid sabbatical after seven years of employment.
Tech Stack
Categories
About Epic Games
Founded in 1991, Epic Games is a leading interactive entertainment company and provider of 3D engine technology. Epic operates Fortnite, one of the world’s largest games with over 350 million accounts and 2.5 billion friend connections. Epic also develops Unreal Engine, which powers the world’s leading games and is adopted across industries such as film and television, architecture, automotive, manufacturing, and simulation. Through Unreal Engine, Epic Games Store, and Epic Online Services, Epic provides an end-to-end digital ecosystem for developers and creators to build, distribute, and operate games and other content. Epic has over 40 offices worldwide with headquarters in Cary, North Carolina.