Senior Backend Engineer, Search

The role

You will design, optimize, and scale search infrastructure using Postgres and OpenSearch. You will work on real-time search ingestion, serving, and vector search capabilities.

What you will do

• Design and implement robust search solutions that scale
• Improve search relevance, accuracy, and speed
• Improve real-time indexing pipelines
• Create measurement frameworks to evaluate and improve search quality
• Build and enhance vector search capabilities
• Collaborate with AI, backend, and product teams
• Troubleshoot complex search-related issues at scale

Required qualifications

• Bachelor's degree in Computer Science or related field
• 5+ years of experience as a search engineer or in a directly related role
• Hands-on production experience with OpenSearch or ElasticSearch
• Experience with high-scale, real-time data ingestion and search serving in a backend services context
• Proven ability to optimize query parsing, indexing, and relevance tuning for search systems
• Experience measuring and optimizing search quality

Nice to have

• Background in search ranking, relevance algorithms, and information retrieval
• Hands-on experience with vector embeddings and semantic search implementations
• Experience with TypeScript in backend systems
• Track record of architecting search solutions that maintain performance under heavy load
• Experience applying machine learning and NLP to enhance search relevance

Before you apply

• AI fluency is evaluated as part of the hiring process
• Sponsorship for engineering and product roles is not guaranteed and is based on business needs

About the company

ClickUp is an AI-native company building a converged AI workspace unifying tasks, docs, chat, calendar, and enterprise search.