Sr. Security Engineer

Company Introduction  We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce.  We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.  Role Overview We are seeking a highly skilled Senior Security Engineer with 5+ years of hands-on experience in Identity and Access Management (IAM) to design, build, and optimize our enterprise identity infrastructure. In this role, you will lead the implementation and daily administration of key IAM, IGA, and continuous authorization frameworks using Okta, Saviynt, and SGNL. The ideal candidate thrives in a technical, execution-heavy environment, bridges traditional IAM with modern Zero Trust / Continuous Adaptive Trust models, and brings deep technical proficiency in automation, API integrations, and access governance. What You Will Do As a Senior Security Engineer, you will serve as a subject matter expert in securing identities across our cloud and hybrid environments. You will be directly responsible for architecting, deploying, and maintaining our IAM ecosystem—focusing on Identity Governance and Administration (IGA) via Saviynt, Workforce Identity/SSO/MFA via Okta, and Just-In-Time/Continuous Authorization policies via SGNL. This is a heavily hands-on position requiring technical leadership, API-driven integration work, and practical engineering expertise. Identity Infrastructure Engineering: Architect, deploy, and maintain robust enterprise identity solutions across Okta (Workforce Identity Cloud), Saviynt (IGA), and SGNL (CA / Dynamic Access). Identity Governance & Lifecycle Management: Configure and optimize Saviynt for access requests, dynamic role-based access control (RBAC/ABAC), access certification campaigns, and automated provisioning/deprovisioning workflows.