1. Responsible for overseas actual combat offensive and defensive projects, to promote defense with offense; 2. Carry out technical research and defensive breakthroughs in actual combat projects.

1. Good learning ability, communication skills and teamwork spirit; 2. More than five years of red team experience, at least one of the following technical fields with in-depth research: cloud environment penetration, internal domain environment penetration, code audit, no-killing, mobile security; 3. Familiar with web attack and defense and red team dotting technology, have rich experience or original methods for asset collection, web vulnerability exploitation, and protection bypass; 4. Have experience in covert infiltration, be able to complete the acquisition of permissions or data of core systems under more complete protection conditions, and have good anti-traceability capabilities; 5. Have certain programming skills, including but not limited to Golang, Python, Shell, Java, etc. Preferred: 1. Have successful experience in the penetration of medium and large projects 2. Have in-depth research and understanding of real APT attacks 3. Have high-quality original vulnerabilities or technical outputs