Senior Staff Backend Engineer - IAM

Overview

Lead backend engineering for identity and access management (IAM) on Coupang’s next-generation AI cloud platform. The role focuses on secure, scalable identity services, authentication, authorization, and service-to-service communication.

What you'll do

• Lead and grow a backend engineering team focused on IAM.
• Develop authentication, authorization, and identity lifecycle capabilities.
• Design scalable user and machine identity management systems.
• Implement OAuth2, OIDC, SAML, and service-to-service authentication.
• Build authorization frameworks using RBAC, ABAC, and policy engines such as OPA.
• Drive technical design and delivery of complex distributed systems.
• Mentor engineers and ensure identity-system reliability, scalability, and security.

What you'll need

• 13–17 years of backend software engineering experience.
• Backend development experience with Java or Python and REST API design.
• Hands-on experience with OAuth2, OIDC, and SAML.
• Understanding of user and machine or workload identity systems.
• Experience with service-to-service authentication and distributed-system security.
• Experience working in cloud environments, with AWS preferred.
• Strong stakeholder management, communication, problem-solving, and execution skills.

Nice to have

• Experience building IAM systems on AWS, Azure, or GCP.
• Familiarity with PKI, certificate lifecycle management, and secure identity frameworks.
• Experience with RBAC, ABAC, or OPA.
• Exposure to Kubernetes and cloud-native architectures.
• Experience with large-scale distributed systems and high request volumes.
• Background in platform engineering or infrastructure teams.

Details

• Location: Bengaluru.
• Work model: Hybrid, onsite, or remote; the hybrid model requires at least 3 office days per week and allows 2 work-from-home days depending on role requirements.