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Linux Production Support Analyst - Application & Infrastructure Security

Citigroup

$87,280 - $130,920
Aug 21, 2025
Jacksonville, FL, USA
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Citi is looking to prevent, monitor and respond to information/data breaches and cyber-attacks by ensuring the execution of Information Security directives and activities in alignment with Citi's data security policy.

Requirements

  • Linux in general (SA Skills is desired/plus)
  • Scripting
  • Troubleshooting (must)
  • Monitoring (must)
  • Previous or current IT Operations experience
  • Understand Big data platforms and previous experience with Splunk Core or Splunk ES is a plus.
  • Bash/Shell Scripting at minimum

Responsibilities

  • Identify opportunities to automate and standardize information security controls.
  • Resolve any vulnerabilities or issues detected in an application or infrastructure.
  • Analyze source code to mitigate identified weaknesses and vulnerabilities within the system.
  • Review and validate automated testing results and prioritize actions that resolve issues based on overall risk.
  • Scan and analyze applications with automated tools and perform manual testing if necessary.
  • Working knowledge of Linux, networking, and application management on as big data tools for troubleshooting, and security strategies.
  • Reduce risk by analyzing the root cause of issues, their impact, and required corrective actions.

Other

  • 3-5 years of relevant experience
  • Bachelor’s degree/University degree or equivalent experience
  • Consistently demonstrates clear and concise written and verbal communication.
  • Proven analytical skills.
  • Ability to work well under pressure and clearly articulate to management regarding any arising problems, escalations, etc.