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Job ID : 1594690 Date Updated : June 1st, 2026

Junior Project/Product Manager

Hiring Company SThree K.K.
Location Tokyo - 23 Wards
Job Type Permanent Full-time
Salary 2.5 million yen ~ 6 million yen

Work Style

Remote Work and WFH Casual Clothing Flex Time

Job Description

As a Junior Project Manager you will play a pivotal role in supporting one of Japan’s most widely used loyalty programs. You will lead client onboarding, manage inquiries, and act as a trusted partner for clients to ensure smooth adoption and ongoing success on the Coupon Platform.
 
This role combines customer engagement, technical understanding, and cross-functional 
collaboration, offering an excellent opportunity to grow within a dynamic and technology-driven environment. 

Key Responsibilities 
• Define business requirements and understand client needs to ensure smooth and timely onboarding onto the Coupon Platform. 
• Manage technical client inquiries in compliance with established Service Level Objectives (SLOs). 
• Act as the primary liaison between clients and internal product/development teams during incidents, issues, and escalations, owning all client communications. 
• Conduct a wide range of client support activities, including onboarding assistance, configuration guidance, and issue resolution. 
• Maintain deep knowledge of the Coupon Platform’s features and specifications to effectively advise and support clients. 
• Improve and standardize internal client support processes to increase operational efficiency. 
• Create, maintain, and enhance client-facing and internal support documentation. 
• Contribute to team KPIs and provide regular updates on project and operational progress. 
• Collect and relay client feedback to product and development teams to drive continuous improvement. 
• Expand knowledge of other ecosystem products and identify cross-selling opportunities.

General Requirements

Minimum Experience Level Over 1 year
Career Level Entry Level
Minimum English Level Daily Conversation (Amount Used: English usage about 50%)
Minimum Japanese Level Business Level
Minimum Education Level Associate Degree/Diploma
Visa Status Permission to work in Japan required

Required Skills

• Bachelor’s degree in Computer Science, Engineering, or a related field (preferred but not mandatory). 
• 2+ years of experience in Product Management or Project Management within the technology industry (preferred but not mandatory). 
• Experience working with, or the ability to quickly learn, complex technical platforms 
and product specifications. 
• Hands-on experience managing customer support or Client Support activities such as onboarding, inquiry handling, system configuration, and troubleshooting. 
• Strong product- and customer-focused mindset with a proactive approach to problem-solving. 
• Engish is necessary but not mandatory (日本語だけも大丈夫です!)

Job Location

  • Tokyo - 23 Wards

Work Conditions

Job Type Permanent Full-time
Salary 2.5 million yen ~ 6 million yen
Industry Internet, Web Services

Job Category

Company Details

Company Type Large Company (more than 300 employees) - International Company
Non-Japanese Ratio About half Japanese