Barnali Chakrabarty
Warsaw,Poland
Summary
Detail-oriented Data Analyst specializing in reporting tools, SQL, and data visualization. Creates Activity Diagrams, Use Cases, and Sequence Diagrams to optimize workflows. Utilizes Snowflake, Power BI, and Python for data analysis and visualization. Maintains data quality and executes data mapping to support informed decision-making across business functions.
Overview
13
13
years of professional experience
Work History
Business Intelligence Developer
Citibank
Warsaw, Poland
05.2025 - 09.2026
- Designed and implemented robust ETL processes and reporting systems to transform business requirements into actionable insights and visualizations.
- Designed and implemented ETL processes and reporting systems to convert business requirements into actionable insights and visualisations.
- Configured and optimised data flows for dashboard applications, using MS Visual Studio to connect source systems to SQL Server, improving data accessibility.
- Executed workflow creation to enable migration of manual processes to Hadoop data lake, enhancing operational efficiency.
Senior change and process specialist
Nordea Bank
Warsaw
10.2023 - 02.2025
- Conducted data quality assessments, pinpointed discrepancies, and refined framework to enhance data reliability.
- Coordinated with IT support to identify and resolve inconsistencies in customer data records, ensuring data accuracy.
- Conducted daily analysis using Snowflake, Power BI, and Excel to support data-driven decision-making.
- Optimised SQL queries to efficiently retrieve data for various business applications.
- Analyzed data sets and created visual representations in accordance with customer specifications.
Data Analyst
Emami Ltd
12.2015 - 01.2023
- Analyzed data and developed visually appealing reports to improve clarity and accessibility of information.
- Created impactful visual representations of data using Tableau and Power BI to facilitate informed decision-making.
- Designed and implemented advanced dashboards and reporting tools to monitor and evaluate key business performance indicators.
- Sourced and examined complex data trends to generate insights that informed operational improvements.
- Developed and implemented ETL procedures for efficient data collection, cleansing, and mapping through advanced Python libraries.
- Analyzed stakeholder input to clarify business needs and identify essential data sources.
- Mentored summer trainees on various visualisation tools, enhancing their learning and application skills.
- Oversaw vendor evaluation and management activities, ensuring alignment with organizational standards within the SAP ERP system.
ACTIVE VOS DEVELOPER
ADROIX CORP (DBA) CODEFORCE 360
10.2013 - 07.2015
- Executed development and manipulation of WSDL, XPath, and XQuery functions, enabling seamless data transformation between diverse teams and systems.
- Analysed and resolved issues in BPEL processes, improving process reliability through systematic troubleshooting and testing methodologies.
- Collaborated with multiple teams to enhance data flow and integration across systems.
Education
Master of Science - Computer Information Systems
Georgia State University
Atlanta, Georgia, United States Of America12-2012
Master of Science - Computer Science
Georgia State University
Atlanta, Georgia, United States Of America08-2012
Bachelor of Science - B.TECH IN INFORMATION TECHNOLOGY
WBUT
INDIA08-2007
Skills
- ETL processes
- SQL querying
- Data integration
- Data analysis
- Power BI expertise
- Data visualisation
- Data quality assurance
- Business intelligence
- Python programming
- Project management
- Stakeholder collaboration
- Activity diagrams
Accomplishments
- PUBLICATIONS & TECHNICAL WRITING, X. Cao, B. Chakrabarty, Y. Wang and F. Hu, "An Energy-efficient Disjoint Path Routing Approach for Wireless Ad-hoc Networks", ISCA 22nd Parallel and Distributed Computing and Communication Systems (PDCCS), Louisville, Kentucky, Sep. 2009
- Conducted research, Prepared groundwork to assist Dr Xiaojun Cao in writing the book, Wireless Sensor Networks: Principles and Practice
- GRADUATE ADMINISTRATIVE ASSISTANT, ANDREW YOUNG SCHOOL OF POLICY STUDIES, GEORGIA STATE UNIVERSITY, 2011 to 2012, Technician in the system support department. Responsibilities were support, maintenance, troubleshooting of systems and recording inventory.
- GRADUATE RESEARCH ASSISTANT, COLLEGE OF ARTS & SCIENCES, GEORGIA STATE UNIVERSITY, 2007 to 2010, Member in the research group of Dr. Xiaojun Cao (Associate Professor in the Computer Science Department of Georgia State University), taking part in technical discussions held within the group
- GRADUATE TEACHING ASSISTANT, COLLEGE OF ARTS & SCIENCES, GEORGIA STATE UNIVERSITY, 2007 to 2010, Instructed classes, varying in size from 15-30 graduate students, in the absence of the instructor. Actively involved in grading assignments and helping students to resolve doubts
Timeline
Business Intelligence Developer
Citibank
05.2025 - 09.2026
Senior change and process specialist
Nordea Bank
10.2023 - 02.2025
Data Analyst
Emami Ltd
12.2015 - 01.2023
ACTIVE VOS DEVELOPER
ADROIX CORP (DBA) CODEFORCE 360
10.2013 - 07.2015
Master of Science - Computer Information Systems
Georgia State University
Master of Science - Computer Science
Georgia State University
Bachelor of Science - B.TECH IN INFORMATION TECHNOLOGY
WBUT