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Senior Infrastructure Penetration Tester (Vulnerability Assessments), VP (C13)

Job Req ID 23704278 Location(s) Irving, Texas; Fort Lauderdale, Florida Job Type Hybrid Job Category Technology
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About Citi:

Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management.

As a bank with a brain and a soul, Citi creates economic value that is systemically responsible and in our clients’ best interests. As a financial institution that touches every region of the world and every sector that shapes your daily life, our Enterprise Operations & Technology teams are charged with a mission that rivals any large tech company. Our technology solutions are the foundations of everything we do from keeping the bank safe, managing global resources, and providing the technical tools our workers need to be successful to designing our digital architecture and ensuring our platforms provide a first-class customer experience. We reimagine client and partner experiences to deliver excellence through secure, reliable, and efficient services.

Our commitment to diversity includes a workforce that represents the clients we serve from all walks of life, backgrounds, and origins. We foster an environment where the best people want to work. We value and demand respect for others, promote individuals based on merit, and ensure opportunities for personal development are widely available to all. Ideal candidates are innovators with well-rounded backgrounds who bring their authentic selves to work and complement our culture of delivering results with pride. If you are a problem solver who seeks passion in your work, come join us. We’ll enable growth and progress together.

The Role:

The Senior Infrastructure Penetration Tester plays a vital role in Citi's Vulnerability Assessments (VA) team and is responsible for providing VA services to all Citi businesses and technology teams globally. The position will be identifying weaknesses and vulnerabilities within the Citi infrastructure and is part of a larger, global team that collectively provide VA support to all of Citi's business groups. Commercial and open source Vulnerability Assessment tools and utilities are leveraged during these assessments.


  • Provide Vulnerability Assessment/Penetration Testing services to Citi businesses globally through a comprehensive testing process
  • Participate in special projects ranging from rush testing of critical components to architecture reviews with sister teams to “shift-left“
  • Serve as an SME for Infrastructure Penetration Testing in cross-functional efforts/projects
  • Participate in the enhancement of testing processes and methodologies
  • Identify weaknesses and vulnerabilities within the system, exploit them and propose countermeasures
  • Validation of the overall security of critical infrastructure components and applications to ensure they comply with internal policies, security architecture best practices, and industry standards
  • Scan systems and applications, leverage initial results to build a subsequent attack methodology and execute effectively
  • Report Information Security vulnerabilities to businesses in an actionable manner


  • 3-5 years' of relevant experience required in Offensive Security with a history of gradually expanding experience prior
  • Strong hands-on experience with Vulnerability Assessment/Enumeration tools, e.g., Tenable Nessus, Qualys VM, OSS enumeration tools
  • Demonstrate hands on experience with penetration testing tools i.e. Kali suite, open-source tooling, Living Off The Land(OS)
  • Deep understanding of TCP/IP, Infrastructure stacks(i.e. 3 tier, segmented environments)
  • Demonstrable experience working effectively in Enterprise environments
  • Understanding of defensive security principles with an ability to demonstrate offensive opportunities
  • OS and Network Security Experience, e.g. Unix, Linux, Windows, Cisco, etc.
  • Understanding of common protocols, e.g. DNS, SMTP, SNMP, LDAP, Routing Protocols
  • Hands-on experience with MITRE ATT&CK Framework or similar
  • Experience with TTP’s, IOC’s and advanced threat analysis
  • Threat Mapping experience
  • Scripting (Bash, Python, etc.)
  • Reverse Engineering / Exploit Development
  • Design experience/understanding on infrastructure/systems (enterprise a big plus)
  • Exceptional interpersonal skills and a proven track record of working effectively with globally diverse teams
  • Ability to understand new and emerging technologies rapidly to keep up with an ever changing threat landscape  
  • Ability to effectively document and explain exploits/vulnerabilities to technical and non-technical audiences including to senior leadership
  • Demonstrable proficiency in producing comprehensive penetration testing reports with actionable recommendations


  • Bachelor's Degree or equivalent work experience
  • OSCP, OSCE, GXPN, CREST preferred or similar demonstrable experience
  • Nice to have: CCNP, CISSP, TOGAF/SABSA, Microsoft/Linux Certifications

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.


Job Family Group:



Job Family:

Information Security


Time Type:

Full time


Primary Location:

Irving Texas United States


Primary Location Salary Range:

$125,760.00 - $188,640.00


Citi is an equal opportunity and affirmative action employer.

Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Citigroup Inc. and its subsidiaries ("Citi”) invite all qualified interested applicants to apply for career opportunities. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View the "EEO is the Law" poster. View the EEO is the Law Supplement.

View the EEO Policy Statement.

View the Pay Transparency Posting

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