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Toss

Fintech super-app for payments and banking

Data Engineer - Data Warehouse/Mart, Data Analytics Engineer

Data Management +1Confirmed live in the last 24 hours
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • Demonstrated expertise in securities-domain concepts and the ability to define them clearly as a data warehouse modeler and lead clear data-structure design.
  • Experience simplifying complex data models or automating repetitive problems.
  • Ability to communicate effectively with diverse stakeholders and propose efficient data-processing approaches while adhering to data standards.
  • Ability and experience to independently perform data warehouse and data mart modeling, pipeline development, and operations.
  • Proficiency in SQL, including writing organized, readable, and efficient queries.
  • Intermediate-or-higher PySpark proficiency may be required depending on the work.

Responsibilities

  • Design clear table structures, apply standards and data-processing logic, manage tables, validate data consistency, monitor data quality, review security, and document data using metadata management systems.
  • Collaborate with data users to design data marts for key business performance analysis and build the associated pipelines.
  • Establish a foundation for effective data-asset use through data catalogs and data-standard management.
  • Discuss and proactively solve data-processing needs required by a rapidly growing service with colleagues.
  • Refactor and optimize existing mart tables through data modeling that considers consistency, reusability, and scalability, improving system efficiency.
  • Design data marts and build pipelines for external and disclosure reporting.

Desired Qualifications

  • Deep understanding of the securities domain or substantial experience trading stocks.
  • Experience defining enterprise-wide data standards and structuring enterprise tables through data-catalog development.
  • Experience developing data pipelines using Hadoop, Airflow, and dbt.
  • Experience using Tableau for business intelligence.

About the Company

Toss

Fintech super-app for payments and banking

Toss is a South Korean financial services platform that started as a peer-to-peer money transfer service and has grown into a digital 'super app' for personal finance. Its products are accessed through one mobile interface that unifies bank accounts, credit cards, loans, investments, and other financial services, including its own Toss Bank and Toss Securities. It differentiates itself by offering a broad, integrated ecosystem—combining digital banking, asset management, and brokerage services under one roof and running its own banking and securities units. Its goal is to become the leading consumer finance platform in South Korea while expanding its user base globally.

Company size
1,001-5,000
Company stage
Series G
Total funding
$1.5B
Headquarters
Seoul, South Korea
Founded
2011

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