T

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

  • Have a deep understanding of Node.js, TypeScript, and Nest.js, or sufficient practical experience in another server-side environment such as Spring and the ability to transition to the Node.js ecosystem.
  • Have experience designing and operating applications in distributed environments, and independently identifying and resolving issues related to concurrency, atomicity, and parallel processing.
  • Have experience with log collection and monitoring for reliable service operation.
  • Be able to write flexible, readable, and maintainable code.
  • Be able to identify repetitive or inefficient processes and propose better alternatives.
  • Have at least two years of experience as a backend, frontend, or full-stack developer.

Responsibilities

  • Build Node.js-based applications that operate across diverse environments, including servers and clients.
  • Write libraries and test code to build stable and observable services.
  • Design and implement automation platforms in various forms to help employees and customers reduce unnecessary repetitive work and focus on higher-value activities.
  • Develop and operate customer-facing services and internal services that support them.

Desired Qualifications

  • The résumé should describe project challenges and how they were resolved.
  • The résumé may include a brief statement of the candidate's perspective on good code or design principles.

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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