Senior Staff security engineer

The role

You will define and govern security architecture for internal business systems, infrastructure, and enterprise platforms. This role involves owning security strategy across identity, authentication, authorization, cryptography, and data protection domains through architectural leadership and hands-on software development.

What you will do

• Architect and scale enterprise security foundations.
• Design and implement security architecture for large-scale distributed systems.
• Define and govern security policies, authorization models, and frameworks.
• Build security automation solutions and platforms using software engineering practices.
• Partner with engineering and platform teams to embed security requirements into design.
• Drive the evolution of identity and access management ecosystems.
• Review complex system designs and provide architectural guidance.
• Establish best practices for applied cryptography, key management, and PKI.
• Contribute hands-on technical solutions through coding, prototyping, and automation.
• Improve security posture by identifying gaps and driving strategic initiatives.

Required qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Cybersecurity, or a related technical field.
• 8+ years of experience or 10+ years of experience in security engineering, security architecture, platform engineering, or related technical disciplines.
• Deep expertise in at least one of the following: Identity and Access Management (IAM), Authentication and Authorization (OIDC, OAuth 2.0, Federation), Applied Cryptography and Key Management, Credenti
• Strong understanding of secure system design principles in large-scale distributed environments.
• Hands-on software development experience with Python.
• Ability to design, develop, and automate security solutions.
• Experience driving architecture decisions across complex infrastructure and platform environments.
• Ability to solve ambiguous, high-impact technical challenges through systems thinking and strong engineering judgment.
• Strong communication and stakeholder management skills.

Nice to have

• Experience designing and securing large-scale enterprise environments comparable in complexity to major financial institutions, global technology companies, large cloud providers, or highly regulated
• Deep expertise in OIDC, OAuth 2.0, Federation, and Access Governance.
• Deep expertise in Applied Cryptography and Enterprise Key Management.
• Deep expertise in Credential Lifecycle Management.
• Deep expertise in PKI Design and Operations.
• Deep expertise in Policy Languages and Authorization Frameworks.
• Experience building or operating enterprise-scale IAM, Zero Trust, or Access Management platforms.
• Understanding of intrusion detection, threat detection, or security monitoring concepts.
• Experience designing infrastructure platforms and distributed systems at significant scale.
• Demonstrated ability to balance architectural leadership with hands-on implementation and technical execution.

Before you apply

• Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
• This job posting may be closed prior to the stated end date for application if all openings are filled.
• Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information.

About the company

Coupang is a global team with employees from various countries. The company provides equal opportunities to everyone.