Poorbayan Das
Kolkata (open to relocation)
Summary
Data-driven techno-functional analyst with hands-on experience in supply chain optimization, data analytics and AI tools. Proven track record of driving process improvements in an agile environment, building data reporting dashboards, and collaborating with global cross-functional teams. Skilled in SQL, Python, Power BI, Tableau, and ML/AI techniques.
Overview
1
1
Certification
7
7
years of professional experience
Work History
Business System Analyst | Business Analyst
Aristocrat Technologies Inc
Las Vegas, NV
11.2021 - 06.2023
- Coordinated with global Supply Chain, Finance, and IT teams to elicit, document, and validate requirements for system enhancements in MS D365, SAP Concur, and Salesforce CRM, ensuring alignment across departments.
- Collaborated with global stakeholders to define and refine requirements, conduct root cause analysis, and implemented scalable process improvements that enhanced system functionality.
- Built and optimized SQL queries for data extraction, cleansing, and transformation, enabling end-to-end visibility in trade compliance and logistics analytics.
- Automated data extraction workflows via SQL and Excel Macros and standardized data-validation checks, reducing manual effort and increasing reporting accuracy.
- Created Power Bi dashboards to track and communicate key actionable insights, identify operational bottlenecks, and support data-driven decision-making.
Mechanical Design Analyst
IDECA (Pro EPICS)
Tempe, AZ
06.2021 - 11.2021
- Developed dynamic Tableau dashboards and SQL reports to evaluate product sales and customer behavior trends for newly launched product lines and selected historical catalogues, facilitating weekly reviews to identify discrepancies and enhance dashboard reliability.
- Automated report generation using SQL scripts and Excel macros, streamlining data preparation and ensuring accuracy through dataset cleaning and validation in Excel (queries, Pivot Tables, VLOOKUP).
- Coordinated design validation and testing processes using ANSYS and DFMEA frameworks, utilizing structured data to predict failure points and reduce defects.
Research Analyst | Lab Volunteer
Arizona State University
Tempe, AZ
06.2021 - 01.2022
- Built a Python-based machine learning pipeline for predictive insights and pivot research focus on newly surfaced trends.
- Implemented SQL queries in BigQuery and R scripts to extract and transform spatiotemporal research data and apply statistical techniques to identify patterns that informed experimental priorities.
- Developed interactive MATLAB visualizations to present model results and flow-regime classifications, driving data-backed decisions on experimental design.
System Analyst Trainee
Hindustan Aeronautics Limited (HAL)
12.2016 - 01.2017
- Automated data processing with Excel macros, queries, and Pivot Tables, producing SQL drill-down reports for improved data analysis. (Accessories Division, Barrackpore, WB | 12/2016 - 01/2017)
- Conducted SolidWorks part and assembly modeling alongside ANSYS FEA simulations, generating SQL drill-down queries and structuring results in Excel templates for enhanced reporting. (R&D Division, Lucknow, UP | 06/2017 - 07/2017)
- Analyzed system requirements to support aircraft maintenance processes.
- Collaborated with engineers to optimize design specifications for aviation systems.
- Assisted in testing and validating software applications for operational efficiency.
Education
M.Sc. - Aerospace Engineering (Minor: Industrial Engineering)
Arizona State University
Tempe, AZ, USA05-2021
B.Tech - Aerospace Engineering & Applied Mechanics
IEST (formerly, Bengal Engineering and Science University)
Howrah, WB, India04-2018
Skills
- Languages: SQL Python R MATLAB
- Tools: PowerBI (DAX) Tableau Advanced Excel (Power Query, Pivot, Macros)
- Business & Technical acumen: Requirement gathering BPMN Business & Functional requirement documentation Agile Project management Root cause analysis Data modeling & Analytics GDPR & Data Governance Business Intelligence Statistical analytics
- Project management & Process mapping tools: JIRA, Sharepoint, MS Visio, Lucidchart
- ML: Lin Regression Log Regression GBM Decision Trees Random Forest Neural Net SVM K Means PCA NLP
- Design & Modeling: SolidWorks AutoCAD ANSYS
Certification
- 2025-2026 - IIT Delhi Advanced Certification programme in AI/ML and DL | PWSkills Data Analytics with AI | Generative AI Mastermind (Outskill & Growthschool) - Coursera | Generative AI with OpenAI LLM (Deeplearning.AI) - Great Learning , LinkedIn Learning
- Statistics for Data Science using Python - Coursera | Google Data Analytics Professional Certification
- Operational Excellence Foundations (Dr. Richard Chua) - LinkedIn Learning | Six Sigma Foundations (Dr. Richard Chua) - DataCamp | R - Introduction to the Tidyverse
Languages
English, Hindi, Bengali, German
Personal Projects
- Built a robust GBM model using historical sales to forecast demand trends and inform strategic planning. Integrated feature engineering techniques and evaluated performance using MAE/RMSE metrics.
- Developed a logistic regression and ensemble ML model (Random Forest) to predict clinical risk of heart failure. Implemented in Python with clear model interpretation and ROC/AUC evaluation.
- Designed and deployed personalized chatbots for customer service, product inquiry, and document-based Q&A using NLP and OpenAI APIs. Demonstrated advanced use of prompt engineering, vector databases, and RAG pipelines with LangChain integration for scalable solutions.
- Experience in building a full-scale enterprise data warehouse - defining schemas, creating fact and dimension tables, developing robust ETL pipelines to centralize data from multiple sources, performing advanced SQL-based end-to-end exploratory data analysis, implementing performance optimization techniques (e.g., indexing, partitioning, and query refactoring) on large, high-volume datasets to ensure efficient, production-grade data operations.
Timeline
Business System Analyst | Business Analyst
Aristocrat Technologies Inc
11.2021 - 06.2023
Mechanical Design Analyst
IDECA (Pro EPICS)
06.2021 - 11.2021
Research Analyst | Lab Volunteer
Arizona State University
06.2021 - 01.2022
System Analyst Trainee
Hindustan Aeronautics Limited (HAL)
12.2016 - 01.2017
M.Sc. - Aerospace Engineering (Minor: Industrial Engineering)
Arizona State University
B.Tech - Aerospace Engineering & Applied Mechanics
IEST (formerly, Bengal Engineering and Science University)