
Mainframe Junior Analyst
- Job Req Id:
- 25893965
- Location(s):
- Warsaw, Poland
- Job Type:
- Hybrid
- Posted:
- Aug. 05, 2025
Discover your future at Citi
Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.
Job Overview
In this role you will be responsible for providing technical support for Citibank’s global z/OS infrastructure, including diagnosing and solving incidents and problems related to the functioning of Citi infrastructure.
We will work together with the multiple functions to ensure proper performance of the processes running within one of the biggest IT environments all over the world. This will include direct engagement into operations including immediate notifications for critical issues and acting as the service owner.
You will have the opportunity to develop in the field of communication thanks to cooperation with employees at various levels, in different regions of the world and from a wide range of global IT and business.
Key to your success will be impeccable process fulfillment and continuous service delivery as this is our highest priority
Responsibilities:
Diagnose and resolve problems through troubleshooting and basic analysis, escalate issues as appropriate
Participate in testing activities, including the creation and execution of basic test scripts
Apply comprehension of how the team interacts with others in accomplishing objectives
Assess the applicability of previous or similar experiences and evaluate options under circumstances not covered by procedures
Exchange ideas and information in a concise and clear manner
Qualifications:
Previous Mainframe Operating Systems experience preferred
Ability to develop projects required for design of metrics, analytical tools, benchmarking activities and best practices
Effective written and verbal communication skills
Effective analytic/diagnostic skills
Ability to work with virtual and in-person teams, and work under pressure or to a deadline
Demonstrated knowledge of operational process changes and improvement
Ability to work: 6am - 6pm, weekends, bank holidays
Hybrid model of work: 2 days in the office, 3 at home
By joining Citi Solutions Center Poland, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed) and enjoy a whole host of additional benefits such as:
Private Medical Care Program
Life Insurance Program
Pension Plan contribution (PPE Program)
Employee Assistance Program
Paid Parental Leave Program (maternity and paternity leave)
Sport Card
Holidays Allowance
Sport and team recreation activities
Special offers and discounts for employees
Access to an array of learning and development resources
A discretional annual performance related bonus
A chance to make a difference with various affinity networks and charity initiatives
Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day. We want the best talent around the world to be energized to join us, motivated to stay, and empowered to thrive.
Sounds like Citi has everything you need? Then apply to discover the true extent of your capabilities.
#LI-KK1
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Job Family Group:
Technology------------------------------------------------------
Job Family:
Infrastructure------------------------------------------------------
Time Type:
Full time------------------------------------------------------
Most Relevant Skills
Please see the requirements listed above.------------------------------------------------------
Other Relevant Skills
For complementary skills, please see above and/or contact the recruiter.------------------------------------------------------
Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.
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.
View Citi’s EEO Policy Statement and the Know Your Rights poster.

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