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Open nowPosted 21 days ago

26984754 Senior Penetration Tester (Cyber Security)

MyCareersFuture94,028 open roles

Pay
SGD 12,000 – SGD 17,500 a Monthly
Where
East, Singapore
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Your applicationOpen now26984754 Senior Penetration Tester (Cyber Security)MyCareersFuture · East, Singapore

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This job: posted 21 days ago

The posting

Discover your future at Citi

Citi is a preeminent banking partner for institutions with cross-border needs, a global leader in wealth management, and a valued personal bank in its home market of the United States. Citi does business in more than 160 countries and jurisdictions, providing corporations, governments, investors, institutions, and individuals with a broad range of financial products and services.

About the job

Citi is seeking a highly skilled and experienced penetration tester with a specialized focus on vulnerability research, third-party component analysis, and advanced whitebox testing methodologies, including comprehensive source code review. The successful candidate will play a critical role in identifying, exploiting, and providing remediation guidance for complex security vulnerabilities within Citi's diverse technology landscape. This role demands deep technical expertise, a proactive approach to security challenges, and the ability to work collaboratively with development teams to enhance the security posture of our applications and infrastructure.

Who we are

This team specializes in conducting deep-dive penetration testing on a variety of Citi applications (Web, Mobile, Thick Client, and APIs) by manually identifying, researching, validating, and exploiting various known and unknown application security vulnerabilities.

What You’ll Do

As a Senior Penetration Tester on our Offensive Security & Vulnerability Management team, you are responsible for:

  • Vulnerability Research & Exploitation: Conduct in-depth research to discover new attack vectors and zero-day vulnerabilities in enterprise applications, systems, and third-party components. Develop proof-of-concept exploits to effectively demonstrate risk.
  • Whitebox Penetration Testing: Perform comprehensive whitebox penetration tests, leveraging access to source code, design documentation, and internal system knowledge to uncover sophisticated security flaws that blackbox testing might miss.
  • Source Code Review: Conduct manual and automated source code reviews across various programming languages (e.g., Java, C#, Python, JavaScript) to identify security vulnerabilities, misconfigurations, and adherence to secure coding practices.
  • Third-Party Component Analysis: Evaluate the security of third-party libraries, frameworks, and open-source components integrated into Citi's applications. Identify known vulnerabilities (e.g., CVEs) and assess potential risks.
  • Remediation Guidance: Provide clear, concise, and actionable remediation recommendations to development teams, offering expert advice on secure coding, configuration, and architectural solutions.
  • Tooling & Automation: Utilize and contribute to the development of advanced security testing tools, AI-augmented static analysis, and dynamic analysis (DAST) solutions to improve efficiency and coverage.
  • Reporting & Communication: Prepare detailed technical reports outlining findings, risk levels, and recommended mitigations for both technical and non-technical audiences.
  • Stay Current: Continuously research and stay abreast of the latest security threats, vulnerabilities, attack techniques, and industry best practices.

Job Skills/Qualifications:

  • 6+ years of experience in penetration testing, ethical hacking, or application security, with a significant focus on whitebox testing and/or source code review.
  • Proven expertise in vulnerability research, including the ability to identify novel vulnerabilities and develop reliable exploits.
  • Strong proficiency in at least one major programming language (e.g., Java, C#, Python) and familiarity with others.
  • In-depth understanding of common web application vulnerabilities (OWASP Top 10) and API security best practices.
  • Experience with static application security testing (SAST) tools and dynamic application security testing (DAST) tools.
  • Excellent written and verbal communication skills, with the ability to articulate complex security issues to diverse audiences.
  • Ability to work independently and as part of a team in a fast-paced, dynamic environment.
  • Relevant industry certifications such as OSCE, GIAC GWAPT, GPEN, GXPN, or similar.
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