About the job
Have you ever wondered when you can truly engage in hands-on work? Join us now.
- As a Security Engineer, you'll have the chance to work with real infrastructure from the start, going beyond operations to consider structural design and automation.
- Even if you lack practical experience, if you have a solid foundation, you can achieve rapid growth and success alongside the best teammates!
# Please Confirm Before Applying
- It's completely fine if you don't have hands-on experience. If you have a willingness to learn and a desire to grow your career, we encourage you to apply.
- Be sure to include the three mandatory items listed in your resume.
- The candidates who succeed in this hiring process will be working within the Security Infrastructure team.
# About the Team You'll Join
- The Security Infrastructure team designs security architecture to ensure that Toss’s business can expand safely, applying and automating it in real environments.
- We handle a broad spectrum including cloud, network, and endpoint, designing and implementing security policies and control frameworks based on key infrastructures.
- We select technology stacks and create log architectures and access control models, building a structure that defends against real threats rather than just 'security for the sake of security'.
- Our team members come from diverse backgrounds, most having experience in corporate information security roles and specialized information security firms.
- We're looking for individuals who start with the question “why?” to improve security structures and design safer, more efficient methods while balancing technology and business.
# Your Responsibilities Upon Joining
- Operate security solutions across networks, endpoints, and systems while gaining hands-on experience in real infrastructure environments.
- Engage directly with issues by conducting security configuration checks, log analysis, and responding to incidents.
- Improve repetitive tasks and enhance operational efficiency by utilizing automation tools and AI.
- Collaborate with seasoned colleagues, gaining practical experience and creating a rapid learning curve together.
# We Want to Work with Someone Who
- Has a relevant major such as Information Security or Computer Engineering, or has a solid foundation through equivalent learning.
- Can explain the operating principles of infrastructure components like networks, servers, and operating systems.
- Has experience in automation or small development projects through API integration and scripting.
- Goes beyond mere task execution to understand structures and attempts improvements for personal growth.
- Has invested time in activities such as security projects, challenges, or community engagement to grow as a security engineer.
# Required Information for Your Resume
- Detail your experiences where you’ve actively engaged in security or infrastructure. If you have links such as Notion or GitHub that showcase your work, please include those.
- Write about experiences where you learned and applied specific technologies. Focus on what sparked your curiosity, what challenges you faced, what actions you took, and what you learned.
- It's fine if the results weren't perfect; it's sufficient to highlight difficulties you encountered, points you felt were failures, and what you would change if you were to try again.
# The Journey to Joining Toss
- Document submission > Technical interview > Cultural fit interview > Reference check > Compensation negotiation > Final offer and onboarding.
# A Message for Future Colleagues
> "You can enjoy working as a Security Engineer in an environment where innovative technologies are applied, and grow together!"
- The Security Infrastructure Team is dedicated to identifying security threats to our assets, reducing risks, and designing control structures based on threat levels. Throughout this process, we strive to balance security and productivity. We implement controls using technology while making rational decisions.
- Our team is filled with colleagues who ponder difficult problems together and seek solutions. The supportive environment where we acknowledge and encourage each other's efforts is truly wonderful. If you join our team, I am confident we can help each other create better security solutions!

