ARAFAT ALAM

Data Scientist | GenAI Practitioner

Kolkata, West Bengal, India

Profile summary

Strategic Data Scientist and GenAI Practitioner with 4 years shaping technology and analytics outcomes. Known for expertise in Python, data processing workflows, and Power BI dashboard development. Committed to delivering structured insights and scalable solutions across direct-to-consumer and enterprise operations.

Career highlights

Apparel Brand Operations: Founded a direct-to-consumer apparel enterprise and directed end-to-end operations spanning product ideation, sourcing, branding, online sales channels, and customer experience.

Data Workflows and Dashboards: Developed scalable data processing workflows using Python and designed interactive Power BI dashboards for healthcare insights to enable real-time tracking across clinical and operational metrics.

Professional Certifications: Earned the Databricks Certified Data Engineer Associate credential along with professional certificates in machine learning and SAP technology consulting.

Key skills

TechnicalPython SQL OpenAI API
ProfessionalExploratory Data Analysis (EDA) A/B Testing Statistical Analysis Forecasting KPI Design Retrieval-Augmented Generation (RAG) Prompt Engineering Embeddings Function Calling Agentic Workflows Vector Databases Power BI (DAX, Power Query/M, Power BI Service) Data Modeling Dashboard Development Scikit-learn TensorFlow Streamlit OpenCV Hugging Face LangChain VectorDB (Chroma) Gradio

Professional experience

Founder & CEOJan 2024 - Present
QuasarelKolkata

Defines business strategy and steers overall operations, guiding brand positioning and market expansion across youth fashion segments. Directs the full product lifecycle from initial design to digital sales channels and customer experience.

  • Built and launched a direct-to-consumer apparel brand from the ground up, overseeing product ideation, sourcing, branding, online sales, and customer experience.
  • Conducted trend research and design conceptualization for graphic tee collections priced at INR 2 to INR 799.
  • Built and maintained a structured orders and customer database using Python and Pandas, tracking SKU-level sales, repeat purchase rates, and customer acquisition sources, and visualized insights via Matplotlib and Power BI.
  • Designed and analyzed A/B tests on Instagram ad creatives and landing page layouts to diagnose conversion drop-offs, iterating on funnels based on bounce rate and session data.
  • Drove digital marketing campaigns and social media engagement, including paid Instagram ads and organic content strategy, monitoring campaign-level return on investment and customer acquisition cost metrics.
Systems EngineerJan 2022 - Sep 2023
Infosys

Managed system engineering tasks, overseeing data processing and reporting operations. Coordinated technical projects for e-commerce datasets and healthcare tracking systems, delivering structured outputs and maintaining clinical metrics.

  • Developed scalable data processing workflows for e-commerce datasets using Python, Pandas, and NumPy, performing data preprocessing to handle missing values, remove duplicates, and standardize formats.
  • Conducted exploratory data analysis to uncover trends, anomalies, and insights, preparing structured datasets for visualization and business reporting.
  • Designed and deployed interactive Power BI dashboards for healthcare insights, enabling real-time KPI tracking across clinical and operational metrics and publishing reports via Power BI Service with role-based access control.
Systems Engineer (Data Focus) / InfosysJan 2022 - Sep 2023
— handling missing values, removing duplicatesand standardizing formats — to ensure high-quality datasets for analysis.

Managed data workflows using Python, Pandas, and NumPy, overseeing data preprocessing tasks including missing value treatment, duplicate removal, and format standardization to ensure dataset quality.

  • Conducted exploratory data analysis to uncover trends, anomalies, and insights, preparing structured datasets for visualization and business reporting.
  • Designed and deployed interactive Power BI dashboards for healthcare insights, enabling real-time KPI tracking across clinical and operational metrics for doctors, patients, and internal teams.
  • Published reports via Power BI Service with role-based access control.

Projects

Contextual Chatbot with Callback Function

Built a conversational chatbot using the OpenAI API that maintains chat history and triggers callback functions to generate context-aware replies.

OpenAI API
Airline Customer Support Agent

Developed a multi-modal customer support agent with a Gradio UI and OpenAI function-calling to handle airline queries and callback requests.

Gradio OpenAI
Enterprise RAG Knowledge Worker

Built a Retrieval-Augmented Generation system to answer company-specific questions, using OpenAI APIs, ChromaDB for vector storage, Hugging Face embeddings, and LangChain for orchestration.

OpenAI API ChromaDB Hugging Face LangChain
Walmart Sales Forecasting

Built a time-series forecasting model using Facebook Prophet and Plotly, deployed as an interactive Streamlit web application to support business demand-planning decisions.

Prophet Plotly Streamlit
Digit Recognition & Object Detection

Developed a real-time digit recognition system using OpenCV and webcam integration, and built a custom object detection pipeline on a self-curated dataset.

OpenCV
House Price Prediction

Built a regression model using Scikit-learn with a Streamlit front-end for real-time price estimation and visualization.

Scikit-learn Streamlit

Education

B.TechJan 2016 - Jan 2020
Guru Nanak Institute of Technology (MAKAUT)

Electrical Engineering

  • GPA: 7.85
SchoolingJan 2004 - Jan 2016
Kendriya Vidyalaya No.1, Salt Lake, Kolkata
• B.Tech, Electrical Engineering — Guru Nanak Institute of Technology (MAKAUT) | GPAJan 2016 - Jan 2020
7.85 |

Certifications

Databricks Certified Data Engineer AssociateDatabricks
SAP Technology ConsultantCoursera
Machine LearningCoursera
SAP Technology Consultant — Coursera(Professional)Professional
Machine Learning – Coursera(Professional)Professional