DBE-12-Software Engineer, Product Growth - LegalOn

DBE-12-Software Engineer, Product Growth - LegalOn

Description

We are a global leading company providing Professional AI — products that combine deep domain expertise with advanced AI.
Since our founding in 2017, we have focused on developing AI-powered legal technology, raising a total of approximately JPY 28.6 billion to date. In 2022, we established our U.S. entity, and in 2025, we accelerated our global expansion further through our first M&A, welcoming Germany-based Fides Technology into our group.
Our flagship product, LegalOn, is currently available in Japan, the United States, and the United Kingdom. In September 2025, just six and a half years after launch, LegalOn surpassed JPY 10 billion in ARR. Beyond legal, we are expanding into other highly specialized domains with products such as WorkOn, DealOn, and GovernOn, leveraging AI to support complex professional work.
Through our strategic partnership with OpenAI, we incorporate cutting-edge technologies such as AI agents into our product development. By delivering solutions that address a wide range of business challenges, we empower our customers to achieve better outcomes.

For more details about our company, products, and development organization:
https://legalforce-recruit.notion.site/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95

Mission and Challenges

• 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.

What You’ll Do

• 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

Development Environment / Tools

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

For additional details, please refer to this notion page:
https://legalforce-recruit.notion.site/LegalOn-Technologies-f5ebe38a6009428ab0fb1714efd3c90a

Requirements

We are a global leading company providing Professional AI — products that combine deep domain expertise with advanced AI.
Since our founding in 2017, we have focused on developing AI-powered legal technology, raising a total of approximately JPY 28.6 billion to date. In 2022, we established our U.S. entity, and in 2025, we accelerated our global expansion further through our first M&A, welcoming Germany-based Fides Technology into our group.
Our flagship product, LegalOn, is currently available in Japan, the United States, and the United Kingdom. In September 2025, just six and a half years after launch, LegalOn surpassed JPY 10 billion in ARR. Beyond legal, we are expanding into other highly specialized domains with products such as WorkOn, DealOn, and GovernOn, leveraging AI to support complex professional work.
Through our strategic partnership with OpenAI, we incorporate cutting-edge technologies such as AI agents into our product development. By delivering solutions that address a wide range of business challenges, we empower our customers to achieve better outcomes.

For more details about our company, products, and development organization:
https://legalforce-recruit.notion.site/LegalOn-Technologies-Candidate-Handbook-17d82a58637480d2836ae138e5b5ee95

Mission and Challenges

• 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.

What You’ll Do

• 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

Development Environment / Tools

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

For additional details, please refer to this notion page:
https://legalforce-recruit.notion.site/LegalOn-Technologies-f5ebe38a6009428ab0fb1714efd3c90a

Preferred Experiences

Preferred Skills / Qualifications

• 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

We are looking for

Working Conditions

Salary

8.2million to 15 million yen per year

Location

19F, Shibuya Sakura Stage SHIBUYA TOWER, 1-1 Sakuragaoka-cho, Shibuya-ku, Tokyo 150-6219, Japan This is not a fully remote position for overseas candidates. You will be required to work in Japan, and visa support is available.

Job Type

Full-time

Work hours

• Working hours: Full flex system without core hours
• It may be required to work overtime
• Break time: 1 hour

Probation period

3 months

Benefits

Work Environment & Tools

• Choice of laptop: Mac or Windows (Mac with US keyboard available)
• Access to generative AI tools:
  Notion AI, Gemini for Google Workspace, Slack AI
• Access to developer tools:
  Claude Code, Cursor, GitHub Copilot, Devin, Codex, Figma AI, and more
• Side jobs permitted with prior approval

Professional Development

• Self-development support available for books, online courses, certifications, and more
• Language learning support

Time Off

• Weekends and national holidays off
• Paid leave and year-end/New Year holidays
• Special leave: sick leave, work-life balance leave, birthday leave
• Maternity leave, childcare leave, and nursing care leave

Health & Welfare

• Social insurance coverage: Health insurance, employee pension insurance, unemployment insurance, and worker’s compensation insurance
• Influenza vaccination support
• No indoor smoking (a designated smoking room is available in the building)
• Employee stock ownership program
• Certified as an “Eruboshi” company (recognized for promoting women’s participation and advancement in the workplace)