Full-time

Build the AI Search Engine Powering Enterprise SaaS | Senior Software Engineer | Up to ¥19M

Posted by Specialized Group • Japan, Japan, Japan

📍 Japan, Japan 🕒 February 27, 2026

About the Role

About the CompanyA rapidly growing B2B AI SaaS company transforming how enterprises leverage AI in mission-critical workflows.
Its products are already widely adopted by large corporations and continue to expand into new global markets.
Now scaling its AI Search capabilities, the company is investing heavily in top-tier engineering talent.
Role Overview As a Senior Software Engineer focused on AI Search, you will design and build large-scale search and retrieval systems powering AI-native applications.
This is not a maintenance role! You’ll help define architecture, improve relevance, and shape how enterprise users interact with AI-driven search.What You’ll Do
  • Design and develop scalable backend systems for AI-powered search
  • Improve search relevance and ranking
  • Work with LLM-based systems and retrieval pipelines
  • Optimize performance, reliability, and scalability
  • Collaborate closely with product and AI teams from desig...
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