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Jai Kattimani

Jai Kattimani

Data Analyst | Data Scientist

Mumbai, Maharashtra, India 2+ yrs exp 91 · Outstanding

About

Data Analyst and Data Scientist with 2+ years of experience building production ML pipelines, optimising large-scale ETL systems, and shipping analytics-driven features for live platforms. At SEBI, led the overhaul of a Hive-based ETL pipeline processing 10+ TB of daily trading data, cutting ETL runtime by ~35% and storage by ~60% through a CSV-to-Parquet migration and Spark tuning. As a freelance at CloudsAvenue, built and deployed ML models and LLM-driven recommendation features used by three live consumer platforms, and engineered the backend data architecture powering a large-scale wildlife knowledge repository. Strong foundation in Python, SQL, statistical modeling, and BI tooling (Power BI, Tableau, Excel).

Skills & Expertise (30)

Machine Learning Advanced
8.5/10
2
Years Exp
Python Advanced
8.0/10
2
Years Exp
Predictive Modeling Advanced
8.0/10
2
Years Exp
NLP Advanced
8.0/10
2
Years Exp
AutoML Advanced
8.0/10
2
Years Exp
Apache Spark Advanced
8.0/10
2
Years Exp
scikit-learn Advanced
8.0/10
2
Years Exp
Pandas Advanced
8.0/10
2
Years Exp
NumPy Advanced
8.0/10
2
Years Exp
SQL Intermediate
7.5/10
2
Years Exp
AWS Intermediate
7.5/10
2
Years Exp
PySpark Intermediate
7.5/10
2
Years Exp
Tableau Intermediate
7.0/10
2
Years Exp
Postman Intermediate
7.0/10
2
Years Exp
Git Intermediate
7.0/10
2
Years Exp
Express.js Intermediate
7.0/10
2
Years Exp
Next.js Intermediate
7.0/10
2
Years Exp
Node.js Intermediate
7.0/10
2
Years Exp
React Intermediate
7.0/10
2
Years Exp
Django Intermediate
7.0/10
2
Years Exp
Dashboarding Intermediate
7.0/10
2
Years Exp
Microsoft Excel Intermediate
7.0/10
2
Years Exp
Power BI Intermediate
7.0/10
2
Years Exp
MySql Intermediate
7.0/10
2
Years Exp
Statistical Analysis Intermediate
7.0/10
2
Years Exp
Hadoop Intermediate
7.0/10
2
Years Exp
Generative AI Intermediate
7.0/10
2
Years Exp
Seaborn Intermediate
7.0/10
2
Years Exp
Plotly Intermediate
7.0/10
2
Years Exp
Matplotlib Intermediate
7.0/10
2
Years Exp

Work Experience

Freelance Analytics Manager (Data & Ops)

CloudsAvenue TechSolutions LLP

Oct 2024 - Apr 2026

Developed and integrated custom ML models for wildlife sighting prediction and LLM-driven recommendation features, connecting Python-based model outputs to live, user-facing interfaces across three production platforms. Implemented end-to-end data pipelines linking ML backends to interactive frontend dashboards, ensuring reliable, low-latency model serving in production. Engineered the backend data architecture for a large-scale wildlife knowledge repository (Explore Jungles), supporting complex querying across a multi-category species and location dataset. Built and deployed three client-facing platforms (Junglore, A9i Innovations, Grand Festival Mumbai) end-to-end, owning the full stack from database architecture to production deployment using the MERN stack and Next.js. Optimised server-side API performance across all platforms, reducing inter-service latency through async processing and endpoint caching strategies.

Data Analytics Intern

Securities and Exchange Board of India (SEBI)

Dec 2022 - Dec 2023

Led the overhaul of a Hive-based ETL pipeline processing 10+ TB of daily trading data — migrated storage from CSV to Parquet (~60% storage reduction), rewrote Spark scripts, and reduced ETL runtime by ~35%, ensuring SLA-compliant data delivery. Built an NLP-based address similarity engine using Sentence Transformers (all-mpnet-base-v2) via Hugging Face, generating 768-dimensional embeddings for semantic matching across customer demographic data; deployed as a production Django web app with a real-time CSV upload interface. Implemented an AutoML pipeline using H2O.ai with automated data cleaning and hyperparameter optimisation, improving predictive model accuracy by ~15% over the previous baseline. Built a real-time stock ticker extraction pipeline (PINAKA) using OCR and YOLO object detection on Zee Business livestreams, automating extraction of stock names, symbols, and recommendations — eliminating an estimated 3+ hours of daily manual analyst effort.

Sports Analyst

Hudl India Pvt. Ltd.

Aug 2021 - Nov 2021

Used video analytics to evaluate player skill levels and identify areas for improvement, streamlining the film evaluation process and improving the efficiency and accuracy of performance assessments.

Education

M.Sc Data Science - SIES College of Arts, Science and Commerce

2021 - 2023 · Afghanistan

B.Sc Computer Science - SIES College of Arts, Science and Commerce

2018 - 2021 · Afghanistan

Certifications

Microsoft Power BI for Beginners

· 2024

Applied Data Science with Python

· 2022

Tableau Training

· 2022

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Profile Score Breakdown

📷 Photo 10/10
📄 Resume 10/10
💼 Job Title 10/10
✍️ Bio 10/10
🛠️ Skills 20/20
🎓 Education 10/10
⏱️ Experience 11/15
💰 Rate 0/5
🏆 Certs 5/5
Verified 5/5
Total Score 91/100

Profile Overview

Member sinceAug 2026