Sein Jang

Sein Jang currently serves as a Manager at Viva Republica (Toss), where he plays a pivotal role in strengthening the company's security posture amidst the rapidly evolving fintech landscape. His expertise lies in security architecture, threat analysis, and proactive defense strategies, ensuring that Toss remains resilient against sophisticated cyber threats. Sein’s responsibilities encompass comprehensive security threat analysis and response, leveraging advanced SIEM (Security Information and Event Management) systems to monitor, detect, and respond to potential security incidents in real-time. His work on threat modeling and forensic analysis enables the team to identify vulnerabilities and mitigate risks effectively, safeguarding sensitive financial data and user information.

In his role, Sein also leads efforts in designing and implementing robust security architectures tailored to the unique needs of a digital payments platform. This includes integrating cloud security best practices, ensuring compliance with public regulatory standards, and managing security governance frameworks. His expertise in security on big data environments and cloud security allows Toss to maintain high levels of data integrity and operational continuity.

Sein Jang’s strategic approach combines technical proficiency with a deep understanding of regulatory requirements, facilitating seamless communication with public authorities and oversight agencies. His key projects often involve developing innovative security solutions that balance user convenience with stringent security measures, fostering trust among millions of users. With a focus on governance, IT security, and security intelligence, Sein continues to enhance Toss’s security infrastructure, enabling the company to innovate confidently while maintaining a secure environment for its users.