Position: Senior Product Manager
Company: Confidential Legal AI SaaS Company
Location: Tokyo, Japan (remote-friendly within Japan, no full remote)
Employment Type: Full-time
Overview
A high-growth legal technology company is seeking a Senior Product Manager to lead the development of a new AI-driven product. Founded in Japan and now operating globally, the organization has achieved strong revenue traction and continues to expand across international markets.
This role offers the opportunity to own a 0-to-1 product within a stable, revenue-backed AI SaaS environment. The product domain involves complex workflows such as contracts, document management, permissions, and search, requiring a strong focus on reliability and user experience.
Position Summary
The Senior Product Manager will be responsible for defining and executing product vision, strategy, and roadmap for a new product initiative. This role works closely with engineering, design, and business teams while contributing to the overall product management function.
Key Responsibilities
Product Strategy & Vision
Define product vision, strategy, and roadmap
Identify opportunities through user research and market analysis
Set and track product success metrics
Product Development
Create PRDs, feature specifications, and documentation
Translate business needs into clear product requirements
Collaborate with engineering and design teams to deliver features
Stakeholder Management
Partner with cross-functional teams across product, tech, and business
Communicate product direction and updates to stakeholders
Present product capabilities, including AI-related features
Data & Insights
Conduct user research, market research, and data analysis
Use insights to guide prioritization and decision-making
Qualifications
Required
Product management experience or relevant system development background
Ability to define product vision and roadmap
Experience in user research and data analysis
Strong stakeholder management skills
Strong Japanese documentation and communication ability
Preferred
Experience in 0-to-1 product development
SaaS product management experience at a senior level
Interest in AI / generative AI
Familiarity with Agile methodologies
Data analysis or visualization experience
Domain knowledge in complex business workflows
Business-level English
Technical Environment
Product Scope
Product vision, roadmap, PRD creation, metrics, go-to-market
Focus Areas
AI-driven product development
Complex enterprise workflows
Working Style & Benefits
Flexible working hours (no core time / discretionary system)
Hybrid work style (no full remote)
120+ annual holidays (weekends, national holidays, additional leave)
Full social insurance
Sick leave, family care leave, parental leave, and additional benefits
AI tools and modern development tools provided
Learning budget and language support
Employee stock ownership plan
Side work allowed with approval
Non-smoking office (designated smoking areas available)
Compensation
10.5M – 20M JPY (depending on experience)
Career Path
Ownership of new product initiatives
Progression to senior or leadership product roles
Exposure to global product expansion and strategy