Data Scientist · AI/ML Engineer · Data Analyst

Divya
Gunjan

Data is more than numbers and dashboards,
I build real solutions that drive real impact.

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// 01 — About

Namaste — I'm Gunjan

I hold a Master's in Data Analytics from UIS and bring a full-stack data skillset — from building ETL pipelines and predictive models to fine-tuning LLMs and delivering insights at scale. I don't just analyze; I architect, engineer, and deliver.

Professionally, I've built predictive models, automated pipelines, and driven data strategy for Fortune 500 e-commerce clients. I'm now looking to go deeper — building scalable ML systems, deep learning models, and AI products that solve real problems.

I bring a strong computer science foundation from NIT Hamirpur, hands-on industry experience, and a design sensibility from years of UX/UI and graphic design work. I also pushed data visualisation beyond 2D — building interactive 3D experiences on Meta Quest 3. I speak English, Hindi, Maithili, Urdu, and some Arabic.

2+
Years Industry Experience
$4M
Monthly Revenue Uplift
~60%
Reporting Time Reduction
~53%
Forecasting Accuracy Gain
Awards & Certifications
🏆 Fresh Off the Block — Tredence 🏆 Pat on the Back — Tredence 📜 Power BI Essentials — LinkedIn Learning 📜 Design Thinking — IDF 📜 UX/UI Design from Scratch — IDF

// 02 — Experience

Where I've Worked

University of Illinois at Springfield
Graduate Research Assistant
Jun 2025 – Aug 2025 · Springfield (IL), USA
  • Collaborated with faculty on VR as a tool for data accessibility, contributing to the design of an immersive U.S. Census data visualization system on Meta Quest 3.
  • Developed interactive prototypes demonstrating how VR supports teaching and improved interpretation of socioeconomic metrics.
Tredence Analytics Pvt. Ltd.
Data Analyst
Jun 2022 – Jun 2024 · Bangalore, India
  • Key member of the offshore Mobile App Marketing Analytics Team for a leading Fortune 500 US e-commerce client; delivered daily insights through statistical analysis, app performance reviews, and predictive modeling.
  • Built a churn model that increased Android active users by 0.37%, resulting in an estimated $4M monthly revenue boost.
  • Automated weekly reporting using Apache Airflow, Dashboard APIs, Python and MS Office, cutting completion time by over 60%.
  • Performed advanced forecasting with Meta Prophet for installs, MAU/WAU, revenue, and retention for FY25 — achieving 6% improvement in forecast accuracy and boosting projected ROI by 2%.

// 03 — Projects

Things I've Built

VR · Data Visualization · Unity
Immersive US Census Data Visualization
A VR app on Meta Quest 3 that renders 3,100+ interactive 3D data points of US Census data (income, population, poverty) with dynamic labeling and gradient coloring by county.
Unity Meta Quest 3 C# OpenXR XR Toolkit
NLP · LLM · Fine-tuning
Formal Speech → Gen Z Meme Language
Fine-tuned FLAN-T5-Base with QLoRA (4-bit) on 28k formal-to-slang pairs. Injected 210 custom emoji/slang tokens, slashing OOV rate from 18% to 5% and outperforming LSTM seq2seq baselines on BLEU & ROUGE-L.
FLAN-T5 QLoRA HuggingFace WandB Google Colab
⚡ Google Colab · GPU T4
Time Series · Deep Learning
Time Series Forecasting (ETTh Dataset)
End-to-end oil temperature prediction system. Trained and compared LSTM, 1D CNN, and N-BEATS models — achieving a best test MAE of 0.76°C vs 1.63°C baseline, a 53% accuracy improvement.
N-BEATS LSTM 1D CNN PyTorch Python
⚡ Google Colab
Computer Vision · Segmentation
Image Segmentation with U-Net
U-Net model with transfer learning (VGG16 encoder), data augmentation, and increased depth. Optimized MeanIoU via systematic ablation study comparing architectures.
U-Net VGG16 TensorFlow Keras
⚡ Google Colab
CNN · Classification · Transfer Learning
RPS Image Classification (CNN)
CNN classifier for Rock/Paper/Scissors images achieving ~99% validation accuracy using DenseNet121 transfer learning and extensive data augmentation.
DenseNet121 TensorFlow Keras Data Augmentation
⚡ Google Colab
ML · Game Design · Decision Trees
Guess the Animal (ML Game)
ML-based 20-questions-style game using the AWA2 dataset. Compared SVM, Neural Networks, and Random Forests — ultimately deploying a decision tree classifier for optimal interactive game performance.
Scikit-Learn AWA2 Dataset Decision Trees Python
Web App · NLP · Audio Synthesis
Text-Based Video Synthesis
Web app converting text scripts into videos by integrating TTS, automated image retrieval, and Gentle forced aligner for word-level audio-visual synchronization. Output via FFmpeg pipeline.
Python FFmpeg TTS Gentle Aligner Web

NOTE ON COLAB PROJECTS

Several projects were developed in Google Colab notebooks. Screenshots and experiment reports (tracked via Weights & Biases) are available on request — feel free to reach out.

// 04 — Skills

What I Know

Data & Visualization
Tableau Power BI Pandas NumPy Matplotlib Plotly ggplot2 MATLAB
ML & AI
Scikit-Learn TensorFlow Keras PyTorch HuggingFace WandB Meta Prophet
Data Engineering
Apache Airflow ETL Pipelines SQL / SparkSQL MySQL Hadoop
Programming
Python R C++ C# SQL Bash Git / GitHub
Marketing Analytics
AppsFlyer Omniture Data.AI Amplitude
Design & Tooling
Unity Figma Adobe Suite Jira Confluence Slack

// 05 — Education

Where I Studied

UIS Campus aerial
University of Illinois at Springfield
Master of Science in Data Analytics
Aug 2024 – Dec 2025 · Illinois, USA
NIT Hamirpur gate
National Institute of Technology, Hamirpur
Bachelor of Technology in Computer Science & Engineering
Aug 2018 – May 2022 · Himachal Pradesh, India

Let's Connect

I'm actively looking for full-time roles in Data Science, Data Analytics, and AI/ML Engineering. If you're building something interesting or have an opportunity to discuss, I'd love to hear from you.

📍 Springfield, IL · Open to Remote & Relocation