Security Penetration Tester

3 weeks ago

Singapore OPENSOURCE TECHNOLOGIES PTE. LTD. Full time
Roles & Responsibilities

We are seeking a highly skilled Security Pentester with proven expertise in identifying, exploiting, and documenting vulnerabilities across networks, applications, and systems. The ideal candidate will hold an OSCP certification and possess strong hands-on experience with penetration testing tools, methodologies, and reporting.

Key Responsibilities
  • Perform penetration testing on applications, networks, cloud, APIs, and systems to identify vulnerabilities.
  • Conduct vulnerability assessments and exploit proof-of-concepts (PoCs).
  • Develop and execute threat models and attack simulations.
  • Collaborate with development, infrastructure, and security teams to remediate identified vulnerabilities.
  • Prepare and deliver detailed reports including risk ratings, technical findings, and mitigation strategies.
  • Stay updated on the latest security threats, exploits, and industry trends.
  • Ensure compliance with industry standards (e.g., OWASP, NIST, ISO 27001, PCI DSS).
Required Qualifications
  • Bachelor's degree in Computer Science, Information Security, or related field, or equivalent experience.
  • OSCP certification (mandatory).
  • 3–5 years of hands-on penetration testing experience.
  • Proficiency with penetration testing tools (Burp Suite, Metasploit, Nmap, Wireshark, Nessus, etc.).
  • Strong understanding of web application security, network protocols, operating systems, and cloud environments.
  • Knowledge of scripting languages (Python, Bash, PowerShell, etc.) for custom exploit development.
  • Excellent problem-solving and report writing skills.
Preferred Qualifications
  • Additional certifications: OSWE, OSEP, GPEN, CEH, CREST CRT, or similar.
  • Experience with Red Team engagements.
  • Familiarity with DevSecOps and CI/CD security testing.
  • Understanding of threat intelligence and adversary simulation frameworks (MITRE ATT&CK).
Soft Skills
  • Strong communication and presentation skills.
  • Ability to work independently and in a team.
  • Analytical and detail-oriented mindset.
  • Passionate about ethical hacking and continuous learning.
Tell employers what skills you have

Information Security
Report Writing
CEH
Wireshark
Scripting
Soft Skills
PCI DSS
Penetration Testing
Python
Operating Systems
Threat Intelligence
Presentation Skills
Web Application Security
Burp Suite

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