Software Engineer, Product Growth - LegalOn

LegalOn Technologies Shibuya-ku, Tokyo July 6 2026
  • 💴 ¥8.2M ~ ¥15M annually
  • 🏡
    Partially remote
  • 🌏
    Apply from abroad
    Relocate to Japan
  • 💬
    Business Japanese
    Business English
  • 🧪
    Intermediate to senior levels
    5+ years experience required
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About LegalOn Technologies

LegalOn Technologies Shibuya-ku, Tokyo

LegalOn Technologies is a global legal AI company that combines advanced expertise in artificial intelligence with deep knowledge of law and contracts. Since our founding in 2017, we’ve been focused on building AI-powered legal services that help legal and business teams work faster and more confidently.

Key benefits

  • Collaborative, Respect-Driven Culture
  • Comfortable and Supportive Work Environment
  • Cutting-Edge Technology and Expert Colleagues

About the position

As a Software Engineer for our global product, “LegalOn”, you will build the “Legal Success Platform” to support a wide range of corporate legal operations (contracts, governance, research, internal Q&A, etc.) through new feature development and ongoing maintenance. You will actively engage in solving challenges that arise while shaping “LegalOn” - an unprecedented product -, going beyond technical domains to drive customer value creation.

Development Environment / Tools

  • Backend: Go, Python, TypeScript, Java
  • Frontend: TypeScript, React

Responsibilities

  • Evolve the “Legal Success Platform” by developing new features and continuously improving “LegalOn”
  • Construct and refine development workflows centered on AI
  • Identify peripheral challenges necessary for creating customer value and address issues beyond your assigned domain
  • Drive continuous improvements to enhance quality, maintainability, operability, and productivity

Requirements

  • 5+ years of experience in web application development
  • 3+ years of experience in either web frontend or backend development
  • 6+ months of experience in development using AI Agents
  • Experience in development premised on the operation of automated testing
  • Experience in asynchronous team development using distributed platforms such as Git and GitHub
  • N2-level equivalent Japanese proficiency and fluent English communication skills (both online and offline)

Nice to haves

While not specifically required, tell us if you have any of the following.

  • Practical experience with Harness / Prompt Engineering
  • Experience in building workflows centered on AI
  • Experience in operating and maintaining a single product for 3+ years as a Lead Engineer or Architect
  • Experience in roles specializing in infrastructure, such as Platform Engineering or SRE
  • Experience in product development roles other than software engineering, such as PdM, UI Design, or EM
  • Experience in developing multi-region products
  • Experience in development within multinational teams

Compensation

¥8,200,000 ~ ¥15,000,000 annually.

Hiring Process

  1. 1

    Resume Screening

  2. 2

    Casual Interview

    We offer the option to start with a casual interview, depending on your preference.

  3. 3

    Interviews/Aptitude Test

    We will conduct a technical interview, a behavioral interview, and an executive interview. The number of interviews may vary depending on the position and may change during the selection process. We use external aptitude tests, such as SPI and reference checks.

  4. 4

    Offer Meeting

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