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株式会社LegalOn Technologies Tech Stack

AI-powered legal document analysis and contract intelligence platform

IT Services and IT Consulting 渋谷区, 東京都 501–1,000 employees Founded 2017 Privately Held

LegalOn Technologies builds AI legal tech for enterprise document workflows, running a multi-cloud stack (AWS, GCP, Azure) with LLM tooling (LangChain, Ragas, LlamaIndex, Claude, Gemini) and a strong search infrastructure (Elasticsearch, Solr, Lucene). The company is actively adopting security infrastructure (XDR, SIEM, CSPM, AWS WAF) while scaling large enterprise implementations and regional sales expansion—engineering-heavy hiring mix focused on search features, document processing, and LLM performance optimization.

Tech Stack 46 technologies

Core StackAWS Elasticsearch LangChain Python Java Figma Terraform CloudFormation Ansible Kubernetes Slack Cursor GitHub Copilot React Next.js GCP Azure Apache Lucene Solr Ragas LlamaIndex AWS ECS MITRE ATT&CK ChatGPT Notion Gemini NotebookLM Claude Devin Codex+12 more

AdoptingXDR SIEM CSPM AWS WAF

What 株式会社LegalOn Technologies Is Building

◆Challenges

Streamlining data ingestion workflow
Optimizing information extraction process
Improving knowledge processing performance
Improving product quality
Structuring unorganized data into reusable knowledge
Increasing product awareness
Performance and accuracy bottlenecks in llm applications
Overall productivity improvement
Product quality stabilization
Automated test infrastructure

▲Active Projects

Search recommendation feature development
Legalon cloud platform
Automating system operations and monitoring
Information extraction web app development
Web application feature expansion
Large-scale enterprise implementation projects
Internal web applications for document processing
Ai-native transformation
Enterprise sales in kansai
Sales team expansion in osaka

Hiring Activity

Decelerating30 roles · 7 in 30d

Department

Engineering

17

Sales

3

Data

2

Legal

2

Marketing

2

Product

1

Security

1

Seniority

Senior

13

Mid

10

Manager

4

Lead

1

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About 株式会社LegalOn Technologies

LegalOn Technologies operates as a global AI legal tech company headquartered in Tokyo, founded in 2017. The platform centers on automated legal document analysis and contract intelligence, with active development across search recommendation features, information extraction, and a cloud-based SaaS offering. Current work includes large-scale enterprise deployments, internal document processing applications, and regional sales expansion in the Kansai and Osaka regions. The company serves mid-market and enterprise legal teams across Japan and beyond.

Headquarters渋谷区, 東京都

Company Size501–1,000 employees

Founded2017

Hiring MarketsJapan

Frequently Asked Questions

What technology stack does LegalOn Technologies use?

LegalOn runs AWS, GCP, and Azure for cloud infrastructure, with Elasticsearch, Solr, and Apache Lucene for search; LangChain, Ragas, and LlamaIndex for LLM orchestration; Python and Java for backend; React and Next.js for frontend; and Kubernetes for orchestration.

What is LegalOn Technologies working on?

Current projects include search recommendation features, cloud platform development, AI-native transformation, large-scale enterprise implementations, information extraction tools, and regional sales expansion in Kansai and Osaka.