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Linux L3 Systems Engineer – Infrastructure Security, VP

Job in New Castle, New Castle County, Delaware, 19720, USA
Listing for: Citigroup
Full Time position
Listed on 2026-01-01
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below

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.

Responsibilities
  • Provide Technical support for the Security Infrastructure and Applications Capacity, Performance and Stability reporting and support
  • Help innovate and bring process and technical enhancements
  • Lead initiative to develop/improve scripts and other programs for system monitoring and maintenance
  • Facilitate infrastructure projects and security assessment for the infrastructure with the associated applications in scope
  • Be responsible to assess the risk and associated impact of all operational issues and change events, while reacting quickly to elevate to technology management in a timely manner when required
  • Work closely with the development team to ensure the operational requirements are met during the project transition
  • Work across all levels of the organization with both technical and non-technical stakeholders
  • Proven ability to work with high priority global stakeholders within critical timelines
  • Deploy and design large scale complex security ecosystems
Qualifications
  • 5 years’ relevant data security experience as it relates to the responsibilities and qualifications
  • Proficiency in one or more of these scripting languages — Python, Unix Shell, Perl & Power Shell scripting
  • Strong proficiency with Linux and Windows
  • Hands-on experience working with various flavors of server operating systems
  • Experience with any No

    SQL databases will also be considered
  • Must have experience with production server support, application upgrades and project life cycle and SDLC process
  • Deep understanding of TCP/IP technologies and internet routing protocols
  • Experience with RDBMS from application programmer’s perspective
  • Firm knowledge of how to interface with these databases, analyze & write complex queries & procedures
  • Experience with Data Protection Technologies like Physical or Virtual Hardware Security Modules, Public key Infrastructure (PKI), Encryption and Tokenization will be considered a plus
  • Consistently clear and concise written and verbal communication
  • Strong interpersonal and communication skills
  • Strong analytical skills and attention to detail
Education
  • Bachelor’s degree/University degree or equivalent experience
  • Relevant Certifications are a plus (e.g., Linux , RHCSA, LFCS, LPIC, MCSE, etc.)

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:
Technolo…

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