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Toss

Fintech super-app for payments and banking

Network Engineer

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • At least 5 years of network deployment and operations experience.
  • Experience directly designing and building data-center networks based on BGP and EVPN (VXLAN).
  • Experience building and operating hybrid environments connecting public and private clouds.

Responsibilities

  • Directly design, build, and operate the networks of Toss data centers that provide a range of services.
  • Build and operate monitoring systems to ensure uninterrupted network service.
  • Optimize networks for service quality and troubleshoot a range of issues.
  • Design, build, and operate all network layers in environments where data centers and public clouds coexist, including internal data-center fabrics and DCI.
  • Design networks suitable for Toss's uninterrupted services, regularly validate Active-Active center redundancy, analyze issues, conduct technical validation, and implement structural improvements.
  • Automate recurring operational tasks and improve monitoring systems to continuously raise network operations standards.

Desired Qualifications

  • Experience designing and building EVPN Multisite or multi-data-center DCI using equipment from multiple vendors.
  • Experience operating public cloud platforms such as AWS, GCP, or Azure.
  • Experience handling large volumes of traffic in Active-Active data centers.
  • Experience solving problems based on an understanding of TCP/IP and TLS (HTTPS) communications.
  • Experience operating L4/L7 switches and IPsec VPNs.
  • Experience improving monitoring or operations using open-source or AI tools.
  • Experience taking on new challenges to improve networks and expand one's area of expertise.

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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