Staff Security Engineer (Penetration Tester)
Core
Conduct offensive security operations including penetration testing, Red Team campaigns, and threat simulation across web, mobile, API, and network targets.
Role type
Staff Security Engineer (Offensive Security / Penetration Testing)
Builds
Security assessments, remediation guidance, and simulated threat actor campaigns
Domain
Cybersecurity / Offensive Security
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Penetration testing, Red Team operations, Web security, Mobile security, API security, Network security, Linux administration, TCP/IP networking, Command-line tools, Python or Java programming
Preferred skills
E-commerce domain knowledge, AWS and cloud environment experience, Cyber Kill Chain methodology, MITRE ATT&CK framework, OSCP/OSCE/OSED/CREST/SANS certifications, Korean language fluency
Technologies
Burp Suite, Metasploit, Kali Linux, Nmap
Responsibilities
Conduct penetration testing of web, mobile, API, and network targets; Provide remediation recommendations and response guidance for discovered security issues; Operate Red Team campaigns and simulate threat actors
Seniority
Staff, hands-on IC with strategic impact