Junior Product Manager AI

Date PostedJune 17, 2026LocationShinjuku, Tokyo, JapanCompanyDejimal IncSalaryJPY 5000K - JPY 8000KTypeit (pc, web, unix) - product manager

Job Summary

As an assistant to the Senior Product Manager, you will support the end-to-end development of AI products and agents. You will work on market analysis, product roadmaps, and cross-functional team coordination to drive product-market fit. This role offers an opportunity to gain hands-on experience in generative AI development within a fast-growing startup environment.

Responsibilities

  • Support product strategy and roadmap development
  • Assist in requirements definition and specifications
  • Conduct market research and competitive analysis
  • Coordinate communication across multinational teams
  • Analyze user data for product improvements

Required Skills

  • Product Management interest
  • Basic IT literacy
  • Logical thinking and problem-solving
  • Fluent Japanese (N1)
  • Business level English

Job Details

Job Description [Role] As an assistant to the Senior Product Manager, you will be responsible for the following tasks to ensure the success of our rapidly growing AI product project: - Formulating and executing product strategies: Supporting the development of mid- to long-term product roadmaps based on the company's vision and business strategy. - Supporting the development of differentiation strategies through market research and competitive analysis. - Prioritizing product development through data-driven decision-making. - Assisting with product development. - Supporting requirements definition and specification development in collaboration with the engineering team. - Promoting product improvements based on user interviews and data analysis. - Catch up on the latest AI technologies and exploring practical applications. - Understanding customer needs through cross-functional sales collaboration and collaboration with the customer success team. - Supporting the creation of reports for management. - Facilitating smooth communication within multinational and multidisciplinary teams. [PM Team] - In-house AI SaaS PdM: Focusing on expanding the functionality of products that have achieved PMF and expanding the customer base. - AI Agent PMF: Planning and executing strategies to achieve PMF for innovative AI agents. - PjM: Develop and deliver our own SaaS and Agent solutions to customers. Job Requirements [Required Requirements] - Strong interest in and eagerness to learn about product management or related to product management (product planning, project management, etc.) - Basic IT literacy (basic knowledge of software development processes, web technology, etc.) - Logical thinking, problem-solving skills, and strong communication skills (ability to work smoothly with internal and external stakeholders) - Japanese: N1 or native-speaker equivalent [Preferred Requirements] - Some practical experience in software or systems development (including internships) - Experience in market research or data analysis - Interest and knowledge in AI technology and SaaS products - Experience working at or a strong interest in a startup - English: Business level