Demo

Big Data Scientist

POSTED ON 4/25/2025 AVAILABLE BEFORE 6/9/2025
Citi Warszawa, MZ Full Time

Post location: Warsaw, Prosta 36, Citi Solutions Center

Team/role overview:

The Big Data Scientist will be responsible for conducting analysis of financial monitoring system within Anti Money Laundering program in Citi. The Incumbent will work in a team of statisticians with global team across the globe and execute complex statistical analysis to discover and classify patterns of money flows. This is an opportunity to work in a Big Data environment, have a chance to create and implement a new project in Citi, and practice your English on everyday basis. This is a position for those who know how to apply quantitative methods, know programming language (SQL and Python or R or SAS), want to develop their competencies and grow their careers in a global company in a team of experts.

This position requires ability to execute complex statistical analyses, data visualizations and algorithm simulations. A background in advanced statistical techniques and statistical programming will be an advantage. Requirements include programming experience with data analysis, data processing and statistical tools (SQL, Python/R/SAS). Fluency in English and very good written and verbal communication skills are necessary.

What you'll do:

  • Conduct data-driven analyses and reports; apply qualitative and quantitative data analysis methods; prepare statistical and non-statistical data exploration within Anti Money Laundering (AML) program in Citi.

  • Apply statistical methods to organize, analyze, and interpret data related to AML monitoring scenarios and thresholds.

  • Provide data pulls and reports directly from Oracle database and big data environment. Write SQL queries in large database environment.

  • Detect data anomalies and conduct deep dives to identify source of those anomalies. Recommend data driven solutions to address those anomalies.

  • Use visualization techniques to display data and the results of analysis in clear presentations that can be understood by non-technical readers.

  • Provide technical support to the team by implementing automation tools on Oracle Database and Python, R or SAS.

  • Design technical solutions supporting complex data reporting and analytical tasks. Generate graphical data reports, including data cross-tables, scatter plots and statistical measures.

What we'll need from you:

  • Master's or Bachelor's degree in technical science/mathematics/statistics/quantitative methods (degree in economics/banking may be considered if strong analytical skills are demonstrated)

  • 3-5 years’ experience in analyzing large datasets and in data mining

  • Programming and statistical/data analytical experience using SQL and Python/R/SAS

  • Initiative, creativity and attention to details

  • Consistently demonstrates clear and concise written and verbal communication skills

  • Self-motivated and detail oriented

  • Comfortable interfacing with business clients

What we can offer you:

By joining Citi Poland, you will not only be part of a business casual workplace with a hybrid working model (2 days working at home per week), but also receive a competitive compensation package and enjoy a whole host of additional benefits that support you (and your family) to be well, live well and save well:

  • Paid Parental Leave Program (maternity and paternity leave); A supportive workplace for professionals returning to the office from childcare leave

  • Award-winning pension plan, multisport, holiday allowance

  • Private Medical Care Program, Group Life Insurance

  • Consideration for annual discretionary bonus

  • Employee Assistance Program

  • Access to a wide variety of learning and development programs, online course libraries and upskilling platforms, such as Udemy and Degreed

  • Flexible work arrangements to support you in managing work - life balance

  • Career progression opportunities across geographies and business lines; Mentoring Programs

  • Socially active employee communities with diverse networking opportunities

#LI-KS3

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Job Family Group:

Technology

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Job Family:

Data Science

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Time Type:

Full time

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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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