Trust & Safety Abuse Investigator - Mercari at Mercari, inc. | JP | Rezi

Trust & Safety Abuse Investigator - Mercari at Mercari, inc.

Trust & Safety Abuse Investigator - Mercari

Mercari, inc. · JP

1 weeks ago

Trust & Safety Abuse Investigator - Mercari

Mercari, inc. · JP

9 days ago
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About the Role

This team is responsible for detecting, investigating, and responding to violations of terms of service, guidelines, fraudulent activities, and harmful content across Mercari's marketplace services. They also design operational procedures and formulate policies. The team prioritizes customer safety and provides feedback to legal and engineering teams to enhance platform security.

Responsibilities

  • Analyze complex data and logs based on user reports and system alerts to identify malicious behavior and organized fraud patterns.
  • Translate manual and AI-driven investigation findings into automated detection and scalable rules, feeding back to product teams for proactive prevention.
  • Perform rapid triage and decision-making for severe policy violations and cases requiring reporting to law enforcement agencies.

Requirements

  • Alignment with the mission and values of the Mercari Group and its companies.
  • Minimum of 3 years of practical experience in Trust & Safety, fraud prevention, or risk operations.
  • Skills in data extraction and analysis using SQL and generative AI.
  • Experience leading projects from data-driven problem identification to improvement implementation.
  • Ability to drive projects involving multiple departments.

Skills

  • SQL
  • Generative AI
  • Data analysis
  • Project management
  • Risk management

Location

  • Roppongi

Work Type

  • Full-time
  • Flextime (with core hours)

Experience Level

  • 3+ years of experience in Trust & Safety, fraud prevention, or risk operations

About the Company

  • Mercari Group aims to circulate all value and expand the possibilities of everyone. Founded in 2013 from a desire to address the scarcity of global resources, Mercari created the flea market app 'Mercari'. They believe that by circulating all forms of value, not just physical goods or money, they can increase opportunities for individuals to achieve their goals and contribute to society. They connect people worldwide through technology to realize a world where everyone's potential can be realized. Learn more about Mercari Group's vision in the Mercari Culture Doc.

Equal Opportunity

  • Mercari Group is committed to creating a society where individuals have the opportunity to create value freely, regardless of their background. Inclusion & Diversity is essential for Mercari to achieve its mission. In recruitment activities, they promise to eliminate all discrimination based on age, gender, sexual orientation, race, religion, physical ability, and other identifiers to welcome individuals with diverse backgrounds who resonate with Mercari's mission and values. Please review the I&D statement for more details. Also, please review the Privacy Policy when applying.