Coupang

Principal, Security Engineer

Coupang
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3 hours ago
Seoul, Korea, SouthStaff+
H1B Sponsor

Responsibilities

  • Lead the engineering design and build-out of enterprise directory services and identity platform modernization.
  • Design, build, and operate large-scale Active Directory environments across multiple domains and geographies.
  • Improve reliability, resiliency, security, and operational excellence across identity infrastructure.
  • Partner with security, infrastructure, and platform teams to develop IAM capabilities.
  • Engineer authentication, directory services, access management, and identity lifecycle solutions.
  • Resolve complex directory service, authentication, and integration issues as the highest level of technical escalation.
  • Develop automation and tooling to improve scalability and reduce manual operations.
  • Evaluate and integrate identity technologies across Active Directory, cloud identity providers, and internally developed solutions.
  • Contribute to custom IAM capabilities, services, and user experiences.
  • Establish architectural direction and technical standards for enterprise identity platforms.

Requirements

  • 12+ years of hands-on experience in Identity and Access Management, Directory Services, or Infrastructure Security engineering.
  • Deep expertise administering, engineering, and troubleshooting Microsoft Active Directory and Entra in large enterprise environments.
  • Experience designing, migrating, or modernizing complex multi-domain Active Directory environments.
  • Strong understanding of LDAP, Kerberos, Group Policy, DNS, authentication protocols, and directory service architecture.
  • Experience supporting highly available, mission-critical identity infrastructure at scale.
  • Experience building continuous controls around AD, Entra, and IAM platforms.
  • Strong scripting or software development skills in Python, Java, or similar languages.
  • Experience automating operational processes and building engineering solutions rather than relying solely on commercial products.
  • Proven ability to diagnose and resolve complex identity, authentication, and infrastructure reliability challenges.
  • Bachelor’s degree in computer science, information security, or a related field, or equivalent practical experience.
  • Preferred experience leading enterprise-scale Active Directory transformation programs and operating identity services in global, multi-region environments.
  • Preferred experience with Entra ID, Azure AD, Okta, cloud and hybrid IAM integrations, identity governance, privileged access management, access lifecycle management, open-source technologies, custom platform development, security architecture, zero trust principles, and modern authentication technologies.

Tech Stack

Categories

Coupang

About Coupang

10,000+ employees

Coupang is a technology and Fortune 150 company listed on the New York Stock Exchange (NYSE: CPNG) that provides retail, restaurant delivery, video streaming, and fintech services to customers around the world under brands that include Coupang, Eats, Play, Rocket Now, and Farfetch.