Cybersecurity Engineer: Hands-on Pen Testing & Response

iSystems Security Limited; Hong Kong; On-site; HKD 300,000 - 600,000; Full time

Job summary

iSystems Security Limited is seeking a Cybersecurity Engineer to lead hands-on security assessments, incident response, and remediation strategy development for clients across Asia Pacific. You will perform penetration testing, red team/blue team exercises, digital forensics, and deliver clear reports.

A degree in IT/CS/AI/Data Science and certifications such as CISA/CISM/CISSP/OSCP are preferred. Strong communication and ethical standards are essential.

Qualifications

• A university degree in IT, Computer Science, AI, Data Science, or a related field.
• Hands-on experience in Penetration Testing, Red Teaming, Cyber Incident Response, or Digital Forensics.
• Active certifications such as CISA, CISM, CISSP, CISP, OSCP, or equivalent preferred.
• Strong analytical and problem-solving skills with a self-initiated mindset.
• Excellent communication and interpersonal skills to collaborate with team members and clients.

Responsibilities

• Executing penetration tests and vulnerability assessments across network, web, and mobile applications.
• Participating in and simulating red team/blue team exercises to strengthen client defenses.
• Assisting in cyber incident response and digital forensic investigations.
• Preparing clear, actionable technical reports for clients, detailing findings and remediation strategies.
• Taking ownership of project tasks and contributing to continuous improvement of methodologies.

Skills

Penetration Testing

Red Teaming

Cyber Incident Response

Digital Forensics

Analytical Skills

Communication Skills

Education

Degree in IT/CS/AI/Data Science

Job description

iSystems Security Limited is seeking a Cybersecurity Engineer to lead hands-on security assessments, incident response, and remediation strategy development for clients across Asia Pacific. You will perform penetration testing, red team/blue team exercises, digital forensics, and deliver clear reports.

A degree in IT/CS/AI/Data Science and certifications such as CISA/CISM/CISSP/OSCP are preferred. Strong communication and ethical standards are essential.