Linux Production Support Analyst - Application & Infrastructure Security , AVP

Linux Production Support Analyst - Application & Infrastructure Security, AVP (C12)

Citi is seeking a Linux Production Support Analyst for Application & Infrastructure Security, AVP (C12). This role is responsible for helping maintain, certify, and ensure that Citi's Security Infrastructure and Security Applications remain in consistent adherence to MISP (Malware Information Sharing Platform) as regulated and required by the OCC. This is a production support role and will require close collaboration with internal, highly technical teams.

Responsibilities:

• Support operations around the existing infrastructure platforms and/or applications including troubleshooting, monitoring, and remediation.
• Resolve infrastructure product/application escalations by collaborating with internal, highly technical teams.
• Splunk basic skills including research, querying data (e.g., security logs, data logs, etc.).
• Perform scripting in Bash/Shell.
• Maintain, track, and complete assigned tickets in the ticketing system queue.
• 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 to resolve issues based on overall risk in ranked order.
• Scan and analyze applications with automated tools and perform manual testing if necessary.
• Good working knowledge of networking protocols, security strategies, and application management for troubleshooting.
• Identify opportunities to automate and standardize information security controls when possible.
• Reduce risk by analyzing the root cause of issues, their impact, and required corrective actions.
• Direct the development and delivery of secure solutions by coordinating with business and technical contacts.

Qualifications:

• 4+ years' experience working hands-on with Linux.
• 3+ years' IT Security Production Support experience in Security Infrastructure or Security Application support.
• Basic Bash/Shell Scripting at minimum.
• Prior experience with Splunk Core or Splunk ES is a big plus.
• Must be a self-starter able to effectively manage time in alignment to timelines.
• Ability to work well under pressure and clearly articulate to management regarding any arising problems, escalations, etc.
• Consistent adherence to domain process and procedures.
• Good understanding of Big Data/Data Lake platforms or environments.
• Ability to troubleshoot and support multiple applications within the domain.
• Experience with Jira or ServiceNow is a plus.
• Excellent communication and process documentation skills.
• Bilingual Spanish is a plus.

Education:

• Bachelor's degree/University degree or equivalent experience.
• Linux certifications (e.g., Linux SA) are 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.