Hiring: Senior Machine Learning Engineer, Discovery Recommendations Company: Epic Games Location: Cary, NC Job Posted Time: 2026-09-14 12:31:15 Target Skills & Keywords : AWS, Databricks, Deep Learning, Epic Systems, NLP, PyTorch, Python, Spark, Transformers About the job Experience: •5+ years of experience building production recommendation or ranking systems, ideally in a UGC, marketplace, or content discovery context •7 years of employment with a paid sabbatical. Required Skills: •Design, build, and optimize the recommendation systems that power Fortnite's Discover experience, serving personalized recommendations to one of the largest player bases in gaming across a massive catalog of creator-built experiences. •You'll work across the full recommendation stack: candidate generation, content ranking, impression allocation, and real-time reranking. •Unlike recommendation systems that operate over a stable catalog, you're working with a massive, rapidly changing content library where new experiences are published daily, quality signals are sparse, and the system's own outputs shape the data it learns from. •In this role, you will •Design and implement retrieval, ranking, and reranking models for creator content using deep learning approaches (two-tower architectures, transformer-based sequence models, embedding-based retrieval) and build the user representation systems that power personalized discovery •Build and optimize multi-stage candidate generation and impression allocation pipelines that balance relevance, diversity, and fair content exposure across a large and rapidly evolving catalog •Design and run A/B experiments to validate model improvements, own evaluation frameworks that capture recommendation quality holistically, and drive the path from experiment to production deployment •Partner cross-functionally with analytics and content quality teams on ranking signals including genre classification, creator credibility, and content quality metrics Compensation: •Our coverage includes Medical, Dental, a Vision HRA, Long Term Disability, Life Insurance & a 401k with competitive match Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!