Senior Staff Security Engineer

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Senior Staff Security Engineer in Others new

Coupang
Full time
Email

Others
10/01/2026
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Seoul, Korea

Responsibilities

Develop the mobile threat landscape, identify attack paths and control gaps, and define the target security posture and roadmap.
Create practical iOS and Android security standards covering application integrity, device trust, authentication, credential protection, local data, WebViews, deep links, and third-party SDKs.
Build and operate an evidence-based mobile application security assessment and review program with methodology, prioritization, acceptance criteria, and escalation.
Drive platform-level security solutions, automation, engineering self-service, and measurement of security coverage and residual risk.
Influence senior engineering leaders across organizational boundaries on architecture, engineering practices, and investment priorities.
Establish the mobile security operating model and help build and manage a specialist team over time.

Requirements

Deep hands-on mobile security expertise across both iOS and Android, preferably in a large-scale consumer technology environment.
Practical experience with mobile application security, reverse engineering, app integrity, device trust, authentication, secure storage, IPC, WebViews, deep links, networking, and abuse resistance.
Experience building or operating a mobile security assessment or review program rather than only conducting individual reviews.
Strong software engineering experience, ideally including production mobile development or mobile security tooling.
Ability to identify systemic issues across applications and translate them into reusable platform controls, standards, or engineering frameworks.
Experience with product security architecture and threat modeling at significant scale.
Demonstrated ability to influence senior engineers and leaders and drive changes in engineering practice across organizational boundaries.
Prior people management is useful but not required; strong technical leadership and potential to grow into management are emphasized.

Benefits

Full-time regular employment with a 12-week probation period, which may be skipped, shortened, or extended according to business needs.

Coupang

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.

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