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Linux Production Support Analyst

United States, Tampa Employment contract 87280.00 - 130920.00 USD / Year · Job Posted June 28, 2026
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Job Description

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.

Job Responsibility

  • 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

Requirements

  • 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
  • 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

Nice to have

  • Advanced scripting capability
  • Linux certifications (e.g., Linux System Administrator)
  • Bilingual proficiency in Spanish

What we offer

  • medical, dental & vision coverage
  • 401(k)
  • life, accident, and disability insurance
  • wellness programs
  • planned time off (vacation)
  • unplanned time off (sick leave)
  • paid holidays
  • discretionary and formulaic incentive and retention awards

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