Lead Cloud Security Threat Modeler

Overview of the Company:

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.

Overview of Chief Information Security Office (CISO):

The Chief Information Security Office (CISO) is home to deeply talented colleagues that work to ensure the safety of Citi's clients', our revenue, our employees and our proprietary data. We manage information security as one end-to end program - one with a clear mandate and accountability. Our mission is a program that is fully anchored to modern control and architectural frameworks, is fully aligned with the enterprise architecture of the firm and is deeply integrated into the sectors and functions.

Overview of the Role:

Citi is looking for a security focused person with a good understanding of cybersecurity principles to work in the Cloud Threat Modeling team. Using threat modeling you will identify threats and specify mitigating controls which will directly reduce the risk of Citi operating in the public cloud.

Responsibilities:

• Perform Threat Modeling using a documented process
• Development of automation tools as required
• Maintain a high standard of work in identifying threats and specifying mitigating controls
• Attending to the lifecycle of identified threats and controls
• Delivery of threat models and supporting tasks within existing timeframes
• Provide feedback, support, and improvements to the existing threat modeling process
• Present work to seniors, the team, and other technical teams

Qualifications:

• 6+ years of experience in a Cybersecurity role.
• Proven experience with Jira or other similar ticketing systems.
• Strong understanding of security best practices related to Authentication, Authorization, Logging/Monitoring, Encryption, Infrastructure Security, and Network Segmentation.
• Experience with scripting languages (e.g., Python, Bash, PowerShell) or Infrastructure as Code tools (e.g., Terraform, CloudFormation).
• Familiarity with threat modeling methodologies like STRIDE, PASTA, Attack Trees, and the MITRE ATT&CK framework, as well as threat modeling tools (e.g., IriusRisk, ThreatModeler, Microsoft Threat Modeling Tool).
• Ability to identify vulnerabilities using CWE or OWASP frameworks.
• Working knowledge of Operating Systems (e.g., Windows, Linux) and their hardening best practices.
• Familiarity with Development Concepts such as CI/CD pipelines, and SDLC.
• Working knowledge of Cloud Platforms (e.g., AWS, Azure, Google Cloud Platform).
• Ability to design and review technical architectures.
• Strong analytical skills, diligence, and attention to detail.
• Excellent skills in creating and maintaining high-quality documentation.
• Demonstrated ability to work effectively with diverse individuals and teams.
• Excellent written and verbal communication skills.
• A passion for continuous learning and staying up-to-date with new technologies and methodologies.
• Proven ability to build relationships across multiple cross-functional teams.

Preferred Qualifications:

• 3+ years experience specifically focused on Threat Modeling.
• Experience with Docker, Kubernetes, Serverless Technologies (e.g., AWS Lambda, Azure Functions, Google Cloud Functions), and Helm.
• Familiarity with Cloud Development Kit (CDK) and GitOps principles.
• Experience supporting or performing Penetration Testing activities (e.g., vulnerability scanning, network penetration testing, web application testing, mobile application testing).
• Experience with Snowflake, MongoDB, Terraform Cloud, GitHub, or Databricks.
• Experience working in a regulated environment (e.g., financial services).
• Ability to think like an attacker and anticipate potential threats.

Preferred Certifications:

While certifications are not strictly required, possessing one or more of the following certifications is highly desirable:

Cloud Certifications (Foundational or Practitioner Level):

• AWS Certified Cloud Practitioner
• AWS Certified Solutions Architect - Associate
• Google Cloud Certified Professional Cloud Architect
• Microsoft Certified: Azure Solutions Architect Expert
• Microsoft Certified: Azure Administrator Associate
• CompTIA Cloud+

Cybersecurity Certifications (Foundational Level):

• CompTIA Security+
• (ISC) Certified in Cybersecurity
• GIAC Security Essentials Certification (GSEC)
• ISACA CSX Cybersecurity Fundamentals Certificate

Education

Bachelor's degree in Computer Science, related field or equivalent work experience

Job Family Group:
Technology

Job Family:
Information Security

Time Type:
Full time

Primary Location:
Irving Texas United States

Primary Location Full Time Salary Range:
$125,760.00 - $188,640.00

In addition to salary, Citi's offerings may also include, for eligible employees, discretionary and formulaic incentive and retention awards. Citi offers competitive employee benefits, including: medical, dental & vision coverage; 401(k); life, accident, and disability insurance; and wellness programs. Citi also offers paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays. For additional information regarding Citi employee benefits, please visit citibenefits.com. Available offerings may vary by jurisdiction, job level, and date of hire.

Most Relevant Skills
Please see the requirements listed above.

Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.

Anticipated Posting Close Date:
Oct 01, 2025

Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.

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 Citi's EEO Policy Statement and the Know Your Rights poster.