Application Security Expert

1 week ago


Singapore SINGAPORE TELECOMMUNICATIONS LIMITED Full time
Cyber Security Assurance Specialist Position

SINGAPORE TELECOMMUNICATIONS LIMITED is seeking a highly skilled Cyber Security Assurance Specialist to join our team. The successful candidate will be responsible for conducting security assessments on applications and systems, and recommending mitigations to ensure that systems are secure.

Key Accountabilities:

  • Conduct security architecture reviews to evaluate the design and implementation of security controls within systems and networks.
  • Perform security testing on web applications and APIs.
  • Recommend mitigations and required implementations to ensure that systems are secure.
  • Review and track remediations and security deviations to their closure.
  • Collaborate with tech and product teams to ensure security controls are reviewed and implemented throughout the SDLC.
  • Manage security issues identified from third party services and vendor assessments.
  • Manage security findings from bug bounty program with businesses, and external hunters.
  • Manage security issues identified from attack surface assessment tools.
  • Be the AppSec subject matter expert and collaborate with business, infrastructure, application teams to continuously enhance the security posturing of applications and systems.
  • Work with and manage the engagements with internal & external pen testers, red teaming exercise.

Desirable Skills:

  • Degree/Diploma or higher in Computer Science, Information Systems or equivalent.
  • Minimum 5+ years of experience in application security, penetration testing, security architecture or related field.
  • Security certification such as OSCP, CISSP, SANS GIAC Security Certifications or others is a plus.
  • Ability to correlate enterprise risk with suitable administrative, or technical security controls.
  • Experience in pen test, and vulnerability assessment tools (e.g., Burp, ZAP, Nessus, ) and secure coding.
  • Experience managing bug bounty programs and attack surface management tools.


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