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Lead Cyber Security Specialist (Penetration Tester)

CrimsonLogic · Singapore

Singapore · On-siteFull-TimePosted Jun 19, 2026

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Job description

Our Employee Value Proposition

Advancing our People.

Advancing our World.

At CrimsonLogic, we put your Career and Well-being first

.We are committed to advancing your career through a full spectrum of professional Development programs with the support of a strong Total Rewards philosophy that focus on your well-being

.We believe that by investing in each and every one of our employees’ professional and personal growth, we can collectively make a positive impact on the world as we strive for greatness together in a nurturing and inclusive workplace

**.

Role Purpose(**

s)The Penetration Tester is responsible for executing full-scope offensive security assessments across networks, applications, cloud environments, and operational technology(OT). This role involves simulating advanced cyberattacks, bypassing modern defenses, and delivering actionable remediation strategies to strengthen the organization’s security postur

**e.

Key Accountabilit**

  • iesConduct comprehensive penetration tests on applications, systems, and networ
  • ks.Simulate real-world cyberattacks to evaluate and improve defensive measur
  • es.Provide detailed remediation recommendations and track resolution progre
  • ss.Support risk assessments and control gap analys
  • is.Maintain and enhance cybersecurity policies, standards, and procedur
  • es.Ensure compliance with relevant security frameworks and regulatory requiremen
  • ts.Collaborate with stakeholders to clarify findings and close repor

**ts.

Job Responsibilities & Du**

  • tiesConduct comprehensive penetration tests on applications, systems, and netwo
  • rks.Simulate real-world cyberattacks to assess security post
  • ure.Provide detailed remediation strategies and follow up with users for clarification and resolution until report clos
  • ure.Perform system commissioning security clearance revi
  • ews.Review and validate false positives from web penetration tests and secure code sc
  • ans.Conduct security baseline hardening reviews across infrastructure and applicati
  • ons.Perform firewall rule reviews and application security configuration assessme
  • nts.Assist in risk assessments, control gap analysis, and security plan developm
  • ent.Document security risks in the enterprise risk regis
  • ter.Evaluate compliance with security frameworks and regulatory requireme

**nts.

Key Job Competen**

  • cies Deep understanding of cyber threats, vulnerabilities, and attack methodolo
  • gies.Familiarity with security frameworks (e.g., NIST, ISO 27
  • 001).Excellent verbal and written communication sk
  • ills.Strong analytical and problem-solving abili
  • ties.Ability to manage multiple projects in a dynamic environ

**ment.

Education Requir**

  • ementsBachelor’s degree in Cybersecurity, Information Technology, Computer Science, or a related
  • field.Equivalent experience may be considered in lieu of formal educ

**ation.

Working Experience Requ**

irementsAt least 3 years of hands-on experience in penetration

**testing.

Skills**

RequiredMust-ha

  • ve skillsCREST or OSCP certification (Ma
  • ndatory).Advanced knowledge of penetration testing methodologies a
  • nd tools.Strong exploit development and vulnerability researc
  • h skills.Proficiency in penetration testing tools (e.g., Metasploit, Burp Suite, Kali Linu
  • x, Nmap).Experience with exploit development and bypassing advanced security
  • defenses.Strong understanding of system/application security risks and mitigation st

rategies.

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