Penetration Tester

Astek; Singapore; On-site; SGD 60,000 - 120,000; Full time

Job summary

Astek is seeking an experienced penetration tester to join our security team in Singapore. You will conduct internal vulnerability assessments, perform penetration testing, and help remediate findings with clear, actionable guidance.

You will analyse vulnerability reports from researchers and tools, participate in red-team activities, and stay ahead of threats with current threat intelligence to advise technical teams on effective remediation strategies.

Qualifications

• Minimum 2 years of hands-on experience in penetration testing.
• Strong knowledge of common vulnerabilities and remediation techniques (e.g., OWASP Top 10).
• Experience in attack simulation, red teaming, or other offensive security testing.
• Skilled in root cause analysis of vulnerabilities and developing appropriate technical solutions.
• Proficient in handling large datasets and performing detailed vulnerability analysis.
• Detail‑oriented with excellent analytical and written communication skills.

Responsibilities

• Conduct internal vulnerability assessments and penetration testing, ensuring timely remediation of identified issues.
• Analyse vulnerability reports from researchers, vendors, and tools to evaluate their impact on the environment.
• Provide expert advice and actionable recommendations to technical teams on effective remediation strategies.
• Support ongoing penetration testing initiatives and offensive security exercises.
• Stay current with emerging cyber threats, vulnerabilities, attack methods, and threat intelligence; assess their relevance and initiate mitigation actions or advisories.

Skills

Penetration testing

Vulnerability analysis

Red teaming

Threat intelligence

Root cause analysis

Data analysis

Written communication

Education

OSCP

OSCE

GPEN

GWAPT

GXPN

Job description

• Conduct internal vulnerability assessments and penetration testing, ensuring timely remediation of identified issues.
• Analyse vulnerability reports from researchers, vendors, and tools to evaluate their impact on the environment.
• Provide expert advice and actionable recommendations to technical teams on effective remediation strategies.
• Support ongoing penetration testing initiatives and offensive security exercises.
• Stay current with emerging cyber threats, vulnerabilities, attack methods, and threat intelligence; assess their relevance and initiate mitigation actions or advisories.

Requirements

• Minimum 2 years of hands‑on experience in penetration testing.
• Strong knowledge of common vulnerabilities and remediation techniques (e.g., OWASP Top 10).
• Experience in attack simulation, red teaming, or other offensive security testing.
• Skilled in root cause analysis of vulnerabilities and developing appropriate technical solutions.
• Proficient in handling large datasets and performing detailed vulnerability analysis.
• Detail‑oriented with excellent analytical and written communication skills.
• Preferred certifications: OSCP, OSCE, GPEN, GWAPT, GXPN, or equivalen