Ananya Joshi

Ananya Joshi

Business Analyst Intern
India
Internship On-site

About Me

I'm a B.Tech. Data Science student at Mukesh Patel School of Technology Management & Engineering, NMIMS, with experience in data analytics and machine learning internships. I've worked on fraud detection, credential stuf…

Experience

Business Analyst Intern

Amazon · Bengaluru , Karnataka , India
Jan 2026 - Jun 2026 · 5 months

<p>Automated and deployed an ML-driven fraud detection framework using unsupervised anomaly detection, AWS Lambda, and S3.</p><p> Leveraged behavioral analytics, anomaly scoring, and alerting to uncover fraud patterns across large-scale authentication events.</p><p> Achieved 100% detection precision and less than 4.5% false positives on validated fraud cases.</p><p> Implemented a credential stuffing detection model using multi-temporal features, weighted velocity modeling, and ensemble machine learning techniques.</p><p> Achieved 90.54% precision and 97.27% recall against sophisticated automated attacks.</p>

Machine Learning Intern

PolyMinds Labs · Ale , Västra Götaland County , Sweden
May 2025 - Jul 2025 · 2 months

<p>Built AI-powered microservices for a skills-first hiring platform using Azure OpenAI and FastAPI.</p><p> Developed a resume intelligence module.</p><p> Developed a labor market analytics pipeline.</p><p> Developed an NLP-based skills extraction engine.</p><p> Developed an adaptive assessment engine pairing LLM-generated questions with a custom ML-driven model calibration for personalized candidate evaluation.</p>

Data Analytics Intern

InCred Financial Services Ltd · Mumbai , Maharashtra , India
Jul 2024 - Sep 2024 · 2 months

<p>Designed a credit risk modeling framework across multiple financial customer segments.</p><p> Applied statistical feature selection and model benchmarking to reduce feature space from 200+ variables to 10 key predictors.</p><p> Enhanced domain-specific credit risk models through feature engineering, ensemble methods, algorithm evaluation, and hyperparameter optimization.</p><p> Increased the Gini coefficient by 21%.</p><p> Improved predictive risk discrimination.</p>

Data Analytics Intern

NullClass · Mumbai , Maharashtra , India
Jun 2024 - Aug 2024 · 2 months

<p>Improved sentiment analytics pipelines for social media data.</p><p> Leveraged text preprocessing, feature extraction, and Power BI visualizations to uncover engagement trends.</p><p> Enabled real-time insight generation and performance monitoring.</p>

PROJECTS

Credential stuffing

amazon
Duration : 31-Dec-2025 - 11-Jun-2026

<p>Automated and deployed an ML-driven fraud detection framework using unsupervised anomaly detection, AWS Lambda, </p><p>and S3, leveraging behavioral analytics, anomaly scoring, and alerting to uncover fraud patterns across large-scale </p><p>authentication events, achieving 100% detection precision and

Certifications

Google Data Analytics Capstone: Complete a Case Study

google · Mumbai , Maharashtra , India · 2024

Skills

Python SQL PyTorch TensorFlow Keras Scikit-learn OpenCV LangChain NLP Computer Vision Deep Learning RAG Transformer Models Reinforcement Learning Time Series Analysis AWS Azure Spark FastAPI Pandas NumPy Power BI Tableau Git MLflow Docker
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