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Toss

Fintech super-app for payments and banking

Node.js Developer

Backend EngineeringConfirmed live in the last 24 hours
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • Experience using TypeScript, Nest.js, MikroORM, MySQL, Redis, and React.js in work.
  • Experience collecting and loading data reliably using REST APIs or Open APIs, and transforming it into usable formats.
  • Ability to write flexible, readable, and maintainable code.
  • Interest in logistics, operations, customer support, and broader business workflows, and motivation to solve frontline problems.

Responsibilities

  • Observe teams across Toss Place and automate or systematize repetitive or inefficient manual work with technology.
  • Integrate data with external logistics systems and develop servers, batch processes, and internal products using TypeScript, Node.js, and Nest.js.
  • Identify patterns in recurring problems and build reusable modules and systems to improve platform efficiency.
  • Develop lifecycle-management and logistics-management platforms for payment terminals.
  • Develop work-automation tools and systems to help Toss Place members work more effectively.
  • Lead work across the process from problem definition through measuring outcomes.

Desired Qualifications

  • Pursue continuous learning and growth, and contribute through collaboration and data-driven thinking.
  • Experience operating web services using Node.js, Nest.js, React.js, or other technologies.
  • Experience developing automation to improve internal work efficiency.

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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