CS is a leading technology services firm that operates across the Asia Pacific region in over 20 cities, providing consulting, digital services, technology solutions, and more. We believe in harnessing the power of technology to achieve extraordinary things, creating lasting value and impact for our communities, partners, and people. Our diverse workforce of 13,000 has delivered large-scale, mission-critical, and multi-platform projects for governments and enterprises in Singapore and the APAC region.

Own end-to-end vulnerability assessment and penetration testing across diverse mission critical client environments, from scoping and methodology through exploit, validation, and closure. You’ll translate findings into clear, risk-based reports with practical remediation guidance, collaborate closely with client teams to prioritise patch deployment. You’ll be supported with mentorship and certifications to level up across architecture, implementation, and operations.

Responsibilities

• Deliver end-to-end vulnerability assessment and penetration testing for client environments 
• Produce clear, risk-based reports and remediation guidance; collaborate with client teams to validate fixes.
• Contribute to patch/prioritization conversations and validate fixes post-deployment
• Create client-ready artifacts: methodology, evidence, executive summary, and risk based reporting.
• Provide remediation guidance and assist in OS hardening / Host configuration review.
• Operate strictly within legal/contractual scopes and ethical testing standards; escalate critical exposures promptly.

Essential Qualifications

• Good understanding of TCP/IP, TLS, DNS, HTTP, and common enterprise stacks (Windows/Linux)
• Hands on with Pentest tooling: Nmap, Burp Suite Pro, OWASP ZAP, Cobalt Strike/Sliver (or equivalent)
• Practical knowledge of OS hardening techniques and methodologies.
• Ability to manage support teams, engage stakeholders, handle escalations, and meet service commitments.
• Strong written/oral communication; stakeholder/vendor management; ability to coach junior engineers
• Analytical thinking with solid problem-solving and decision-making skills.
• Possesses OSCP / CRTP / eCPPT / GWAPT/CISSP/ CREST CRT or similar certification

We are driven by our AEIOU beliefs—Adventure, Excellence, Integrity, Ownership, and Unity—and we seek individuals who embody these values in both their professional and personal lives. We are committed to our Impact: Valuing our clients, Growing our people, and Creating our future.  

Together, we make the extraordinary happen.   

Learn more about us at ncs.co and visit our LinkedIn career site.