T

Toss

Fintech super-app for payments and banking

Data Manager (Mart)

Data ManagementConfirmed live in the last 24 hours
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • Experience designing data marts and data warehouses, with a deep understanding of mart structures and data modeling.
  • Experience standardizing duplicated data marts in complex business environments and applying criteria to rationalize them.
  • Ability to explore and validate data directly with SQL, and explain data flows from source systems through data marts.
  • Experience communicating with diverse stakeholders, including Data Analysts, Data Engineers, and business departments, and translating requirements into structures.

Responsibilities

  • Design and plan the structure of enterprise-wide data marts (Silver and Gold Layers), and define the mart roadmap.
  • Standardize complex enterprise-wide data marts by diagnosing duplication and gaps, setting rationalization criteria, and applying those criteria.
  • Manage the lifecycle changes of data marts, including creation, modification, integration, and retirement, and define and continuously monitor quality standards.
  • Work closely with Data Analysts and business departments to provide analytical requirements through mart structures.
  • Collaborate with Data Engineers to ensure designed marts are built and operated reliably, bridging technical constraints and business requirements.
  • Define key metrics such as mart usage, consistency, and reusability, and use them to continuously maintain and improve marts.

Desired Qualifications

  • Experience designing and planning what data marts to create or retire, and continuously maintaining and improving them beyond directly building them.
  • A career centered on data marts in a data role; candidates are welcome regardless of their educational or professional background.

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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