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Senior ~ Staff, Security Engineer (Email Security)

Seoul💼 Full-time🗓 2026-10-02 → 2026-10-07

Core

Designing and operating email security infrastructure to detect and block phishing, spam, and malware attacks while establishing prevention systems.

Role type

Senior Security Engineer (Email Security)

Builds

Email security appliances, SaaS-based security services, and detection policies

Domain

Cybersecurity, Email Security

Required skills

Email security operations, Phishing analysis, SPF/DKIM/DMARC implementation, Email header analysis, Threat analysis, Malware analysis, Network security basics, Incident response

Preferred skills

Python/Go/Linux shell scripting, SQL/Data visualization (Splunk/ELK), Cloud platforms (AWS/Azure/GCP), OWASP/MITRE ATT&CK knowledge

Technologies

SPF, DKIM, DMARC, Splunk, ELK Stack, AWS, Azure, GCP

Responsibilities

Design and implement email security infrastructure, Operate and monitor email security solutions, Develop detection policies and playbooks, Conduct phishing simulations and trend analysis, Perform incident response and damage mitigation, Research and apply latest email security technologies (via careerplan.io/jobs/8206704-senior-staff-security-engineer-email-security-at-coupang)

Seniority

Senior, hands-on IC