Senior Security Engineer (Detection Operations : Email)
Core
Design, operate, and monitor email security infrastructure to detect and respond to phishing, spam, and malware attacks, while developing detection policies and playbooks.
Role type
Senior Security Engineer (Email Detection Operations)
Builds
Email security solutions, detection policies, and incident response playbooks for Coupang's internal ecosystem.
Domain
Cybersecurity, Email Security, Threat Detection
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Email header analysis, Threat analysis and response, Malware and phishing website analysis, Email security policy setting, Email traffic analysis, Email security system operation, Phishing simulation execution, SPF/DKIM/DMARC implementation, Network security basics, System security basics, Analytical problem-solving, Data-driven communication
Preferred skills
Automation and scripting (Python, Go, Linux shell, Powershell), Cybersecurity certifications (CISSP, etc.), SQL queries and data visualization (Splunk, ELK Stack), Cloud platforms (AWS, Azure, GCP), OWASP and MITRE ATT&CK knowledge, On-premise and Cloud environment knowledge
Responsibilities
Design and implement email security infrastructure, Operate and monitor email security solutions, Identify and respond to email-based attacks (phishing, spam, malware), Develop detection policies and playbooks, Conduct email security reviews and maintain guidelines, Respond to security incidents and minimize damage, Execute phishing simulations and report trends, Research and apply latest email security technologies, Perform on-call duties for after-hours incidents
Seniority
Senior, hands-on IC
