Staff Security Engineer

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Staff Security Engineer in Others new

Coupang
Full time
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Others
10/01/2026
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Seoul, Korea

Responsibilities

Lead proactive threat hunting across enterprise systems using hypotheses based on attacker TTPs, threat intelligence, and defensive data visibility.
Apply advanced analytics, behavioral baselines, and statistical methods to large, multi-domain log datasets to identify anomalies and indicators of compromise.
Use MITRE ATT&CK, the Diamond Model, and the NIST Cybersecurity Framework in threat-hunting activities.
Investigate telemetry from SIEM, EDR, NDR, cloud, IAM, and network platforms, emphasizing cross-domain correlation and advanced behavioral analysis.
Collaborate with SOC, Incident Response, Insider Threat, Detection Engineering, and Threat Intelligence teams to operationalize hunting results.
Develop reusable threat-hunting playbooks and automation with Python, PowerShell, or comparable scripting technologies.
Identify security-control gaps and recommend improvements to detection and response capabilities.
Provide technical mentoring and contribute to continuous improvement across the Security Group.

Requirements

Bachelor’s degree or higher in cybersecurity, information security, computer science, or a related field.
At least 8 years of experience in security operations, threat hunting, or incident response.
Deep understanding of attacker TTPs, attacker behavior, and the MITRE ATT&CK framework, with experience applying them to enterprise threat hunting.
Extensive hands-on experience with SIEM, EDR, cloud security, and log-analysis platforms in large enterprise, multi-tenant, or multi-domain environments.
Strong analytical, investigative, and problem-solving abilities based on experience with complex, multi-stage security investigations.
Experience in e-commerce or large enterprise environments is preferred.
Technical understanding of attacker TTPs, the attack lifecycle, lateral movement, and adversary simulation is preferred.
Experience with Splunk, ELK, UEBA, QRadar, SPL, KQL, SQL, or LogScale is preferred.
Experience conducting hypothesis-driven threat hunting and investigations across complex, multi-domain telemetry is preferred.
Experience automating threat hunting and developing playbooks with Python, PowerShell, or comparable scripting and data-engineering skills is preferred.
Understanding of malware analysis, network forensics, and EDR/XDR platform internals is preferred.
Experience identifying security-control gaps and communicating them effectively to stakeholders and leadership is preferred.
Relevant certifications such as GCTI, GCIH, GCIA, GCED, GCFA, GMLE, CISSP, OffSec SOC-200, OffSec TH-200, or Microsoft SC-200 are preferred.
Fluency in Korean and English is preferred.

Salary: DOE

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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