Cyber Security L3 Senior Engineer (Hybrid)

Warsaw, PolandWarsawMazowieckiePolandEuropeJune 8, 2024

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 Enterprise 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.

We are opening our doors for talented individuals who are passionate about Cyber Security, want to be part of innovation by implementing and driving cutting edge technologies within a world class organization.

 If you have a strong background in UNIX & Wintel technologies and consider yourself a technology leader with excellent communication skills, have a wide variety of skillset including a firm grasp of operating systems, hands on scripting/programming, networking protocol implementation and various virtualization technologies, then Citi is a place for you to be, as we offer the environment where skills like these can thrive.


  • Manage various franchise critical security application Infrastructure, specifically in secrets/PAM domain.
  • Own and drive the deployment (from scratch), maintenance and L3 support of managed applications.
  • Gather product requirements, deploy solutions mapped to business needs and continuously evaluate to stay current with evolving requirements.
  • Size and procure the required hardware/software for new deployments and collaborate with various teams like system admin, DBA and others to build the required Infra.
  • Facilitate security assessments and remediation to ensure safety and soundness. 
  • Document the product, process, and train L1/2 teams for BAU support.
  • Automation of manual tasks and continuous review/upgrade of stale processes.
  • Provide SME (Subject Matter Expert) support for the managed applications.
  • Capacity, Performance and Stability reporting and Management.
  • Lead Integration projects and facilitate security assessment and remediation for the infrastructure associated the applications in scope.
  • Be responsible to assess the risk and associated impact of all operational issues and change events and react quickly to escalate to technology management in a timely manner when required.
  • Continuously keep the Knowledge Share repository up to date.


  • 3+ Years’ experience
  • Bachelor’s degree or equivalent experience
  • Any trainings/certifications in Cybersecurity will be considered a plus


  • Hands-on experience working with Linux and Windows Servers
  • DevOps/DevSecOps/SRE experience
  • Experience with Web Service/Application deployment
  • Experience interacting with Web APIs using various protocols and framework (E.g. REST)
  • Understanding of how to interface with these databases, analyze & write complex queries/procedures
  • Must have good analytical skills
  • Excellent organizational, interpersonal and project management skills
  • Proficiency in one or more of these scripting languages – Python, Unix Shell, Perl & PowerShell scripting
  • Experience with IAM/PAM/Secrets products will be considered a big plus (e.g. CyberArk, Hashi Corp Vault)


Job Family Group:



Job Family:

Information Security


Time Type:

Full time


Citi is an equal opportunity and affirmative action employer.

Qualified applicants will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Citigroup Inc. and its subsidiaries ("Citi”) invite all qualified interested applicants to apply for career opportunities. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

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