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Toss

Fintech super-app for payments and banking

Security Engineer Cert

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

About the Job

Requirements

  • At least 3 years of experience configuring and managing security in cloud environments, including AWS and OpenStack.
  • Practical experience with IAM, network security, and log analysis in cloud environments.
  • Experience using security monitoring tools such as CSPM and SIEM.
  • Ability to automate cloud security and program using languages such as Python or Bash.

Responsibilities

  • Review IAM policies and security groups in AWS and OpenStack; establish and apply security policies based on the principle of least privilege; and maintain consistent security through automated policies.
  • Use management tools such as AWS Control Tower to coordinate centralized security policies, monitor cloud security posture with CSPM tools, and respond promptly to security threats or anomalies.
  • Analyze API call and user activity logs using AWS CloudTrail, monitor access and change events in OpenStack infrastructure, and respond to suspicious access or abnormal behavior.
  • Integrate cloud data with a centralized SIEM system, operate real-time dashboards and alerting systems, and verify security audits and regulatory compliance.

Desired Qualifications

  • AWS Certified Security, CCSP, or CISSP certification.

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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