Citi UNIX Expert in Warsaw, Poland

  • Primary Location: Poland,Mazowieckie,Warsaw

  • Education: Bachelor's Degree

  • Job Function: Technology

  • Schedule: Full-time

  • Shift: Day Job

  • Employee Status: Regular

  • Travel Time: Yes, 10 % of the Time

  • Job ID: 17045479


ICG Markets UNIX System Administrator

Production and build support of MSST and Low Latency (STI) UNIX environments consist of over 4000 devices for the ICG Business.


  • Provide technical tier-3 Production Support Management for large complex infrastructure;

  • Proactively monitor overall production support, resolving risks and issues and initiating corrective action plans as appropriate;

  • Ensure processes are clearly documented;

  • Provide regular communication to management and stakeholders of production support status for your infrastructure, including risks, issues and mitigations;

  • Work across multiple time zones and infrastructure areas support teams to ensure high level of support service;

  • Analyze complex problems/situations and to propose simple solutions;

  • Communicate complex technical issues to business users in a language they understand;

  • Manage a workload which is subject to changing priorities and demands;

  • Create and maintain a knowledge base to ensure that knowledge transfer takes place within the team;

  • Engineering solutions and participation in projects implementation in low-latency Linux area;

  • Operating system components tuning for low-latency;

  • Implementation of Enterprise infrastructure tools in low-latency area;

  • Installation and configuration of system/application software;

  • Monitoring of the server environment and its capacity planning;

  • Trouble-shooting and problem solving of complex issues;

  • Reduction of faults, root cause analysis;

  • External data center services vendor management;

  • Daily on-call duties.

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. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients.

Citi’s Mission and Value Proposition at explains what we do and Citi Leadership Standards at explain how we do it. Our mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. We strive to earn and maintain our clients’ and the public’s trust by constantly adhering to the highest ethical standards and making a positive impact on the communities we serve. Our Leadership Standards is a common set of skills and expected behaviors that illustrate how our employees should work every day to be successful and strengthens our ability to execute against our strategic priorities.

Diversity is a key business imperative and a source of strength at Citi. We serve clients from every walk of life, every background and every origin. Our goal is to have our workforce reflect this same diversity at all levels. Citi has made it a priority to foster a culture where the best people want to work, where individuals are promoted based on merit, where we value and demand respect for others and where opportunities to develop to are widely available to all.


  • Knowledge and understanding of naming services such as Active Directory/LDAP/CentrifyDC;

  • TCP/IP and networking experience;

  • Knowledge of HP, IBM hardware up to enterprise level;

  • Standard office automation products (Word, Excel, Outlook);

  • Prior experience in large scale enterprise infrastructure support, re-engineering, performance fine tuning and cost

  • Experience in Infrastructure Support Group in a high availability/mission critical environment;

  • Experience in managing communications across business and technology stakeholders at varying levels across a medium to large scale enterprise;

  • Experience of Linux Systems Administration to a certifiable level;

  • Analytic and methodical approach to problem solving;

  • Ability to remain calm and objective in a high-pressure environment;

  • Must have strong self-management and be ready to use own initiative;

  • Perfect communication, influencing and organizational skills are a must;

  • Vendor management;

  • Demonstrate accountability, leadership, independent initiatives and willingness to lead and work with teams across multiple locations and time zones;

  • Strong team player skills;

  • Flexible and being able to manage time effectively;

  • Able to work with sense of urgency under multiple deadlines and successfully organize and complete tasks with minimal supervision;

  • Fluent English.