Linux Production Support Analyst

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 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 Linux Production Support Analyst sits within Citi's Security Infrastructure organization and is responsible for maintaining, certifying, and ensuring that Security Infrastructure and Security Applications remain in consistent adherence to MISP (Malware Information Sharing Platform) requirements as regulated by the OCC.

This position plays a critical operational role in safeguarding enterprise security compliance by supporting production environments through continuous monitoring, troubleshooting, and vulnerability remediation. The analyst will collaborate closely with highly technical internal teams to reduce risk, deliver secure solutions, and drive automation and standardization of information security controls.

This is an opportunity to contribute directly to the resilience and regulatory standing of one of the world's largest financial institutions. Responsibilities Maintain, certify, and ensure Citi's Security Infrastructure and Security Applications adhere consistently to MISP (Malware Information Sharing Platform) requirements as regulated by the OCC.

Support daily operations across existing infrastructure platforms and applications, including troubleshooting, monitoring, and remediation. Resolve infrastructure product and application escalations by collaborating with internal, highly technical teams.

Query and research security logs and data logs using Splunk to support monitoring and incident investigation. Perform scripting in Bash/Shell to support automation and operational tasks. Maintain, track, and complete assigned tickets within the ticketing system queue in a timely manner.

Resolve vulnerabilities and issues detected across applications and infrastructure environments. Analyze source code to identify and mitigate weaknesses and vulnerabilities within the system. Review and validate automated testing results, prioritizing corrective actions based on overall risk ranking.

Scan and analyze applications using automated tools and perform manual testing when required. Apply working knowledge of networking protocols, security strategies, and application management to support troubleshooting efforts. Identify and implement opportunities to automate and standardize information security controls.

Analyze root causes of issues, assess their impact, and implement required corrective actions to reduce risk. Coordinate with business and technical contacts to direct the development and delivery of secure solutions. Qualifications 4+ years of hands-on experience working with Linux systems in a production environment. 3+ years of IT Security Production Support experience, specifically within Security Infrastructure or Security Application support.

Proficiency in Bash/Shell scripting at a minimum; advanced scripting capability is a plus. Experience with Splunk Core or Splunk ES for querying and researching security and data logs. Strong ability to troubleshoot and support multiple applications across a security domain simultaneously.

Good working knowledge of networking protocols, security strategies, and application management practices. Good understanding of Big Data or Data Lake platforms and environments. Experience with ticketing and project management tools such as Jira or ServiceNow.

Excellent written and verbal communication skills, with the ability to clearly articulate issues and escalations to management. Strong process documentation skills and consistent adherence to domain processes and procedures. Ability to work effectively under pressure and manage time independently in alignment with project timelines.

Education Bachelor's degree or equivalent work experience required. Linux certifications (e.g., Linux System Administrator) are a plus. Bilingual proficiency in Spanish is a plus. 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: Technology ------------------------------------------------------ Job Family: Information Security ------------------------------------------------------ Time Type: Full time ------------------------------------------------------ Primary Location: Tampa Florida United States ------------------------------------------------------ Primary Location Full Time Salary Range: $87,280.00 - $130,920.00 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: Jul 02, 2026 ------------------------------------------------------ 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.

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