Glean

Glean builds an AI-powered enterprise search platform that indexes and retrieves information across workplace applications including Google Workspace, Slack, Confluence, GitHub, and dozens of other SaaS tools, using LLMs to provide conversational answers grounded in company-specific data. The core engineering challenges involve building connectors that handle the diverse APIs and permission models of enterprise SaaS applications, developing retrieval-augmented generation pipelines that maintain access control while delivering relevant results, and scaling search infrastructure across organizations with millions of documents. Their platform must solve the enterprise-specific problems of permission-aware indexing, real-time synchronization, and generating answers that respect organizational data boundaries. Glean's hiring patterns signal strong demand for engineers experienced in information retrieval, NLP, distributed systems, and enterprise integration, reflecting the rapid growth of AI-powered workplace productivity tools.