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Software Engineer, Search Quality and Ranking

United States, New York 160000.00 - 220000.00 USD / Year · Job Posted February 21, 2026
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Job Description

We are looking for a engineer to join our small but nimble Search team whose mission is to find the best documents users (or AI tools!) are looking for, as quickly as possible. As a Search Engineer, you will work on using state-of-the-art models to improve Notion search ranking. You’ll be exploring the boundaries of what’s possible with the latest and greatest Search technologies and finding innovative ways to apply new industry learnings to Notion.

Job Responsibility

  • Build and maintain core search APIs
  • Build new ranking models that bring meaningful quality improvements while keeping latency low
  • Build out core ML infra (using Anyscale / Dynamo)
  • Improve ranking across all sorts of different recall sources, like Elasticsearch and vector databases

Requirements

  • Experience in a technically challenging domain (latency sensitive systems
  • recommender systems
  • etc)
  • Energized by learning new technologies
  • Holistic problem solver with clear understanding of context
  • Communicate nuanced ideas clearly
  • Impact driven and prioritize projects accordingly
  • Curious and willing to adopt AI tools

Nice to have

  • 3+ years of experience in machine learning, recommendation or ranking systems, natural language understanding/generation or artificial intelligence
  • Experience building products using LLMs, embeddings or other ML natural language technologies
  • Understanding how parts of a system fit together
  • Familiar with relational database systems like Postgres or MySQL
  • Experience building products from ground up
  • Elasticsearch experience in knowledge-search domains
  • Proficient with data pipeline technologies: Spark, DBT, etc
  • Proficient with any part of our technology stack: React, TypeScript, Node.js, and Postgres
  • Experience driving teams toward shared goals
  • Knowledge of computing pioneers like Ada Lovelace, Douglas Engelbart, Alan Kay

What we offer

Highly competitive cash compensation, equity, and benefits

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