Senior Backend Engineer (Gateway/IAM)

The role

The Senior Backend Engineer develops and operates the API Gateway and Identity & Access Management (IAM) for the 42dot platform. This role involves designing authentication, authorization, and access control systems to ensure secure and scalable backend architecture.

What you will do

• Design and operate API Gateway and service integration architecture.
• Design and develop authentication and authorization systems for users, services, and APIs.
• Design backend architecture considering stability, security, and scalability and lead technical decision-making.
• Build and operate API security policies, access control, and traffic management systems.
• Improve technical quality through code and design reviews.
• Collaborate with various organizations to solve technical problems.
• Continuously improve platform stability and operational efficiency.

Required qualifications

• 7+ years of practical experience in backend system design, development, and operation.
• Experience building and operating API Gateway (Tyk or similar solutions).
• Understanding and practical experience in IAM (Identity & Access Management), authentication, authorization, and permission management.
• Understanding of authentication and authorization standard protocols such as OAuth 2.0 and OpenID Connect.
• Experience in API security, access control, and traffic management.
• Experience leading technical decision-making while collaborating with various stakeholders.

Nice to have

• Experience designing high-performance, high-availability authentication systems or API platforms.
• Experience designing and operating permission models such as RBAC and ABAC.
• Experience in platform development in Cloud Native environments such as Kubernetes, Istio, and Envoy.
• Experience in performance optimization and fault response in large-scale traffic environments.
• Experience leading from new technology review (PoC) to service application and operation.

Before you apply

• Interview process includes document screening, coding test, 1st interview (video, approx. 1 hour), and 2nd interview (in-person or video, approx. 3 hours).
• Do not include prohibited information such as resident registration number, family relations, marital status, salary, photo, physical conditions, or hometown in the application.
• Employment may be canceled if false information is discovered in the application.
• Reference checks may be conducted after the interview process with the applicant's consent.
• A 3-month probationary period may apply.

About the company

The Open Platform Engineering team develops the API Gateway and Identity & Access Management (IAM) for the 42dot platform to build a core platform that connects various services safely and stably.