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Linux L3 Systems Engineer - Infrastructure Security, VP

Job Description

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. ResponsibilitiesProvide Technical support for the Security Infrastructure and Applications Capacity, Performance and Stability reporting and supportHelp innovate and bring process and technical enhancementsLead initiative to develop/improve scripts and other programs for system monitoring and maintenanceFacilitate infrastructure projects and security assessment for the infrastructure with the associated applications in scopeBe responsible to assess the risk and associated impact of all operational issues and change events, while reacting quickly to escalate to technology management in a timely manner when requiredWork closely with the development team to ensure the operational requirements are met during the project transitionWork across all levels of the organization with both technical and non-technical stakeholdersProven ability to work with high priority global stakeholders within critical timelinesDeploy and design large scale complex security ecosystems 

Responsibilities + Skills

Education

Deep understanding of TCP/IP technologies and internet routing protocolsExperience with RDBMS from application programmers perspectiveFirm knowledge of how to interface with these databases, analyze & write complex queries & proceduresExperience with Data Protection Technologies like Physical or Virtual Hardware Security Modules, Public key Infrastructure (PKI), Encryption and Tokenization will be considered a plus

Experience

5+ years' relevant data security experience as it relates to the responsibilities and qualificationsProficiency in one or more of these scripting languages Python, Unix Shell, Perl & PowerShell scriptingStrong proficiency with Linux and WindowsHands-on experience working with various flavors of server operating systemsExperience with any NoSQL databases will also be considered

Job Summary

  • Published on: Wednesday, 12th November 2025
  • Designation: Linux L3 Systems Engineer -
  • industry: Accounting & Finance Jobs
  • Vacancy: 1
  • Employment Status: Full-time
  • Job Location: Saint Louis, MO
  • Salary: 0
  • Gender:
  • Application Deadline: Wednesday, 12th November 2025

About the Company

  • Company Name: Citi.
  • Address: The Citi Private Bank Citigroup Center 153 East 53rd Street 16/ F, Zone 19 New York, NY 10022 U.S.A.
  • Website: https://www.citigroup.com/
  • Company Profile:
  • Citi is more than a global financial services company. It’s an engine for progress. Join us, and you’ll have the chance to get involved in progress in all its shapes and forms, right across the world. From the micro to the macro, from Australia to Zambia, the ... Read moreMission: Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients. We are Citi, the global bank – an institution connecting millions of people across hundreds of countries and cities.

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