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Founding Engineer - Machine Learning / Search

Plush

Salary not specified
Sep 16, 2025
San Francisco, CA, US
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Plush is looking to improve its core search functionality, build personalized discovery systems, and enable a real-time, chat-based personal stylist that understands user intent and returns highly curated, shoppable results to reshape how people discover fashion online.

Requirements

  • 3+ years of experience working on machine learning, search, and recommendation systems.
  • Comfortable designing both quick prototypes and scalable infrastructure.
  • Strong product intuition and care about what users experience.
  • Built LLM agents or RAG pipelines in production.

Responsibilities

  • Improving our hybrid search systems: Combine keyword and semantic search to surface the most relevant fashion results—balancing relevance, diversity, personalization, and business priorities (e.g., store boosting).
  • Building ML systems that learn user preferences: Tailor search results—surface brands they love, styles that match their event or mood, and pieces that complete an outfit based on their browsing and purchase history.
  • Exploring social discovery features: Power community-driven recommendations and enhance product discovery (e.g., “people with similar taste loved this” or “you and your friend share a love for minimalist tailoring”).
  • Establishing evaluation pipelines: Measure and improve search and LLM performance—tracking relevance, coverage, latency, and output quality.

Other

  • High ownership, clear communication, and thrive in fast-moving environments.
  • Genuine interest in fashion and how people discover what to wear.
  • Authorized to work in the U.S. or Canada and can work within U.S. time zones (remote-friendly within that constraint).