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Aditya Vardhan Sivalanka

Data Scientist & Machine Learning Engineer

๐ŸŽ“ MSc Data Science @ University of Roehampton, London

๐Ÿš€ Building intelligent systems with Python, ML & Big Data

๐Ÿ’ผ 2+ years experience | 87.3% model accuracy | 500K+ data points

aditya@portfolio:~$ cat stats.json
87.3%
Model Accuracy
500K+
Data Points
2+
Years Exp
15+
Certifications

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GitHub Activity

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๐Ÿ”ฅ Recent Activity

Latest Commit Today
Active Projects 6+
Primary Language Python
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๐Ÿ† Achievements

Terminal Explorer โœ“ Unlocked
ML Enthusiast โœ“ Unlocked
Code Wizard โœ“ Unlocked
Data Explorer โœ“ Unlocked

Professional Journey

Building data-driven solutions across cybersecurity, IoT, and community leadership

Sep 2023 - May 2024

Security Data Analyst

NullClass & AACS

Engineered advanced statistical anomaly detection pipelines for 1M+ daily security events using Splunk and SIEM, achieving 68% improvement in threat identification. Developed predictive risk-scoring models reducing MTTD by 30%.

Oct 2022 - Jan 2023

Data Analytics & IoT Optimization Specialist

CSL India

Redesigned IoT data pipeline processing 50,000+ daily sensor events with 35% performance improvement. Built time-series forecasting model with 82% accuracy for parking occupancy prediction.

2021 - 2024

Technical Lead

Google Developer Club

Organized 12+ data science hackathons and technical workshops on Deep Learning, NLP, and MLOps. Drove 45% increase in community engagement through mentorship and event programming.

Technical Arsenal

End-to-end data science and machine learning expertise

๐Ÿ’ป Programming

Python R SQL Java C++

๐Ÿค– Machine Learning

Scikit-learn TensorFlow PyTorch XGBoost Neural Networks NLP Computer Vision Time Series

๐Ÿ“Š Data Science

Pandas NumPy SciPy Feature Engineering EDA A/B Testing Statistical Analysis

โ˜๏ธ Big Data & Cloud

Apache Spark PySpark AWS Docker MLOps Databricks

๐Ÿ“ˆ Visualization

Tableau Power BI Matplotlib Seaborn Plotly

๐Ÿ—„๏ธ Databases

PostgreSQL MySQL MongoDB Redis

Featured Projects

Production-grade ML solutions with measurable business impact

๐Ÿ›’

E-Commerce Analytics

PySpark โ€ข Spark SQL โ€ข K-Means โ€ข MLlib

Distributed big data pipeline processing 500,000+ customer transactions with 70% faster processing. Customer segmentation identifying high-value segments.

โšก 70% faster
๐Ÿ“Š 500K+ data
๐Ÿ“ˆ 18% retention

Tech Stack

  • โœ“ Apache Spark for distributed processing
  • โœ“ K-Means clustering for segmentation
  • โœ“ RFM analysis for customer value
  • โœ“ Multi-node cluster deployment
๐Ÿ‘ฅ

Employee Retention ML

XGBoost โ€ข Random Forest โ€ข SMOTE โ€ข GridSearchCV

Binary classification system predicting attrition with 87.3% accuracy and 0.89 ROC-AUC. Ensemble modeling with hyperparameter optimization.

๐ŸŽฏ 87.3% acc
๐Ÿ’ฐ $250K savings
๐Ÿ“Š 0.89 ROC-AUC

Key Features

  • โœ“ Handled class imbalance with SMOTE
  • โœ“ Ensemble: XGBoost + Random Forest
  • โœ“ 20+ engineered features
  • โœ“ 5-fold cross-validation
๐Ÿš—

Automotive Price Prediction

Ridge โ€ข Lasso โ€ข RFE โ€ข Tableau

Multivariate regression on 25,000+ vehicle listings achieving Rยฒ = 0.91. Interactive Tableau dashboard for pricing intelligence.

๐Ÿ“ˆ Rยฒ = 0.91
๐Ÿ“‰ 23% RMSEโ†“
๐ŸŽจ Tableau viz

Methodology

  • โœ“ RFE for feature selection
  • โœ“ Lasso regularization
  • โœ“ 7 critical price determinants
  • โœ“ Interactive dashboard
๐ŸŒธ

Flower Image Classifier

TensorFlow โ€ข EfficientNet โ€ข Transfer Learning

Deep learning image classifier using EfficientNetB0 on Oxford Flowers dataset. Achieved 88.82% accuracy with data augmentation.

๐ŸŽฏ 88.82% acc
๐Ÿง  Transfer Learning
๐Ÿ–ผ๏ธ Computer Vision

Techniques

  • โœ“ EfficientNetB0 architecture
  • โœ“ Data augmentation pipeline
  • โœ“ Fine-tuning layers
  • โœ“ Oxford 102 Flowers dataset
โš–๏ธ

AI Fairness Research

ML Ethics โ€ข Bias Detection โ€ข Research

Research on algorithmic bias in hiring, healthcare, and facial recognition. Presented fairness-aware ML techniques and mitigation strategies.

๐Ÿ“š Research
๐ŸŽ“ Academic
โš–๏ธ Ethics

Research Areas

  • โœ“ Hiring algorithms fairness
  • โœ“ Healthcare ML bias
  • โœ“ Facial recognition equity
  • โœ“ Mitigation techniques
๐Ÿ“Š

Statistical Analysis Engine

Python โ€ข Statistics โ€ข Hypothesis Testing

Statistical testing framework for Gender Pay Gap and HR analytics. Implemented hypothesis testing and confidence intervals.

๐Ÿ“‰ Statistics
๐Ÿ”ฌ Analytics
๐Ÿ“Š Testing

Statistical Methods

  • โœ“ Hypothesis testing
  • โœ“ Confidence intervals
  • โœ“ Pay gap analysis
  • โœ“ HR analytics

Live ML Demo

Try my sentiment analysis model in real-time

๐Ÿค– Sentiment Analyzer

This is a simple rule-based sentiment analyzer. Type any text and see how it's classified!

๐Ÿ˜Š
Positive
Confidence: 95%

Academic Journey

Building expertise through formal education and continuous learning

Jan 2026 - Sep 2027

MSc Data Science (Professional Experience Year)

University of Roehampton, London ๐Ÿ‡ฌ๐Ÿ‡ง

Strong academic performance in Term 1. Core modules: Machine Learning, Big Data Analytics, Statistical Modelling, Deep Learning. Focus on predictive modelling and MLOps.

Nov 2024 - Jul 2025

Advanced Certificate in Data Science

IIIT Bangalore ๐Ÿ‡ฎ๐Ÿ‡ณ

GPA: 3.70/4.00. Specialization in Business Intelligence & Data Analytics. Achieved up to 15% model performance improvement through advanced techniques.

Apr 2020 - Jul 2024

BE Information Science Engineering

KLS Gogte Institute of Technology ๐Ÿ‡ฎ๐Ÿ‡ณ

CGPA: 9.1/10 (First Class with Distinction). Coursework: Data Structures, DBMS, OOP, Computer Networks.

Certifications

Industry-validated expertise across data science, ML, and cybersecurity

๐Ÿ’ผ

Data Science Job Simulation

Commonwealth Bank
Dec 2025
๐Ÿ“ˆ

Quantitative Research

J.P. Morgan
Dec 2025
๐Ÿ“Š

Markets Quantitative Analysis

Citi
Dec 2025
๐ŸŽฏ

Data for Decision Makers

BCG X
Dec 2025
๐Ÿ”

Global Cyber with Data Privacy

DLA Piper
Dec 2025
๐Ÿ›ก๏ธ

CISSP

ISCยฒ
Certified
๐Ÿ”ง

CCST Cybersecurity

Cisco
Certified
๐Ÿ“ก

Splunk Core Certified User

Splunk
Certified
๐Ÿค–

Claude API Development

Anthropic
2025
๐Ÿ”—

Model Context Protocol

Anthropic
2025
๐ŸŒ

NSE 1 Network Security

Fortinet
Certified
โšก

Network Defence Essentials

EC-Council
Certified

Let's Connect

Available for data science opportunities in the UK | Response within 24 hours

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