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Mercari

Peer-to-peer mobile marketplace for secondhand goods

Engineering Manager - Data Ingestion

Engineering LeadershipConfirmed live in the last 24 hours
Full-timeMinato City, Tokyo, JapanNo salary listed

About the Job

Requirements

  • The candidate should share Mercari’s mission and values.
  • The candidate should have at least 2 years of people-management experience.
  • The candidate should have experience writing design documents or technical proposals and reaching agreement with stakeholders.
  • The candidate should have experience designing, developing, and operating large-scale services, distributed systems, or data pipelines using programming languages such as Go, Python, Java, or Scala.
  • The candidate should be able to collaborate with stakeholders and explain complex technical risks to non-technical leadership.

Responsibilities

  • Lead, mentor, and grow a team of Data Ingestion Engineers.
  • Foster a team culture that emphasizes psychological safety, operational excellence, ownership, and continuous improvement.
  • Support engineers through coaching, performance management, career development, and technical mentorship.
  • Hire and onboard engineers to strengthen team capability and diversity.
  • Manage execution planning, prioritization, and delivery of roadmap initiatives.
  • Define and drive the long-term technical vision and roadmap for Mercari’s data ingestion.
  • Lead architectural discussions and technical decision-making for large-scale distributed data systems.
  • Drive improvements in scalability, reliability, maintainability, and developer productivity.
  • Partner with stakeholders to align platform investments with company-wide data strategy and business goals.
  • Establish engineering standards and operational practices, and enable teams to own and manage pipelines through self-service.
  • Oversee the reliability and operational health of mission-critical ingestion pipelines and event-processing systems.
  • Lead incident management and post-incident reviews for high-severity production issues.
  • Drive continuous improvements in observability, service-level indicators and objectives, monitoring, and operational readiness.
  • Partner with FinOps and infrastructure teams to optimize platform costs while maintaining performance and reliability.
  • Improve resource efficiency through partitioning, clustering, right-sizing, storage lifecycle management, and pipeline optimization.
  • Maintain the resilience and reliability of the self-service platform for backend teams while working with a lean team and partnering with FinOps on major platform contracts, including BigQuery Enterprise Edition and Confluent Cloud.
  • Expand ingestion coverage to third-party, unstructured, and company-wide data sources, including HR and Finance, and help drive JB Data’s Data × AI direction.

Desired Qualifications

  • Experience with streaming data processing frameworks such as Apache Beam, Spark, or Flink.
  • Experience with data warehouse technologies such as Google BigQuery, Amazon Redshift, Hive/Hadoop, or Snowflake.
  • Familiarity with monitoring and alerting tools.
  • Experience with Google Cloud Platform services including Dataflow, Pub/Sub, Kubernetes Engine, or Compute Engine.
  • Experience with Confluent Cloud or Apache Kafka.
  • Experience with workflow engines such as Argo Workflow or Apache Airflow.
  • Experience publishing and contributing to open-source software.

About the Company

Mercari

Peer-to-peer mobile marketplace for secondhand goods

Mercari operates a mobile peer-to-peer marketplace for buying and selling secondhand goods. Users list items by taking photos in the app, and buyers complete purchases there, with payments held in escrow until receipt is confirmed. Revenue comes from seller fees (10% in Japan; 10% plus 3.6% buyer protection in the US), plus Merpay payments and promoted listings, plus shipping partnerships for integrated delivery. The platform differentiates itself through a simple mobile experience, escrow and buyer protection, shipping integration, and a broader marketplace including Mercari Shops for sellers, with a goal of extending product life and supporting a circular economy.

Company size
1,001-5,000
Company stage
IPO
Headquarters
Tokyo, Japan
Founded
2013

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