Freelance Data Scientists in DelhiFreelance Data Scientists in Delhi
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Ajay Bidyarthy's avatar
Ajay Bidyarthy
Delhi, India
Data Science AI ML Expert with Python Full Stack & Backend
12
Followers
Data Science AI ML Expert with Python Full Stack & Backend
Cover image for I specialize in transforming complex
I specialize in transforming complex datasets into intuitive, visually compelling dashboards that drive strategic decision-making. With deep expertise in BI tools and data analytics, I design interactive, real-time reporting systems that help businesses uncover trends, monitor KPIs, and optimize performance. My approach combines data storytelling, clean UI/UX, and scalable architecture to deliver impactful insights. 🔹 My Project Portfolio: 📊 1. Executive Business Intelligence Dashboard Built a dynamic KPI dashboard for C-level executives Integrated multiple data sources (CRM, ERP, marketing platforms) Delivered real-time insights on revenue, growth, and performance Tools: Power BI, SQL, Azure 📈 2. E-commerce Analytics Dashboard Designed a dashboard tracking sales, customer behavior, and conversion rates Implemented cohort analysis and funnel visualization Improved marketing ROI tracking by 40% Tools: Tableau, Python, Google Analytics 📉 3. Financial Performance & Forecasting Dashboard Developed financial models and forecasting dashboards Visualized cash flow, P&L, and budget vs actuals Enabled data-driven financial planning Tools: Power BI, Excel, DAX 📍 4. Operations & Supply Chain Dashboard Created logistics tracking and inventory monitoring system Real-time alerts for stock levels and delays Reduced operational inefficiencies Tools: Looker Studio, BigQuery 📊 5. AI-Powered Analytics Dashboard Integrated machine learning predictions into dashboards Automated anomaly detection and trend analysis Delivered predictive insights for decision-making Tools: Python, TensorFlow, Streamlit
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Cover image for I’ve worked on building graph
I’ve worked on building graph database solutions to handle complex, highly connected data that traditional relational databases struggle with. The main goal was to model relationships more intuitively and enable faster, more meaningful queries—especially for use cases like recommendations, fraud detection, and network analysis. Tech Stack ✔Graph Databases: Neo4j ✔Query Language: Cypher ✔Backend: Python (FastAPI / Flask) ✔Data Processing: Pandas ✔Visualization: Neo4j Bloom / D3.js ✔Cloud & Deployment: AWS / Docker
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Cover image for Businesses today generate a lot
Businesses today generate a lot of data, but most of it goes unused. Teams often rely on manual analysis or basic tools that can’t uncover deeper patterns. This leads to missed opportunities—whether it’s predicting customer behavior, detecting anomalies, or automating repetitive tasks. Another challenge is that even when machine learning models are built, they are rarely integrated into real workflows. So instead of driving impact, they stay as isolated experiments.
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Cover image for I design and manage database
I design and manage database systems using Elasticsearch, Neo4j, and Supabase to enable high-speed search, rich data relationships, and scalable backend architectures. My work includes building efficient data models, optimizing performance, and ensuring secure, reliable access. I oversee the full lifecycle—from setup and integration to deployment and continuous optimization.
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241
Data Scientist(7)
Chhavi Verma's avatar
Chhavi Verma
Delhi, India
Data Science and Visualization Expert
1x
Hired
5.0
Rating
10
Followers
Data Science and Visualization Expert
Cover image for Books Data Analysis
Books Data Analysis
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10
Cover image for Books Data Analysis
Books Data Analysis
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18
Cover image for Red Wine Analysis
Red Wine Analysis
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14
Cover image for Hi Contra community! Just wrapped a
Hi Contra community! Just wrapped a rewarding project for Nauvyashree—delivered deep-dive EDA, custom visualizations, and rich survey sentiment analysis across four datasets. Each milestone included well-designed PDFs packed with clear charts and approachable explanations—making insights accessible for all audiences. I went the extra mile with collaborative Google Meet sessions to walk the client through every analysis, helping connect the findings to big-picture goals. Feedback was fantastic, and milestone-based payments made the process smooth and transparent. This project really strengthened my ability to turn complex results into stories that empower client decision-making. If you want visually engaging, client-focused analytics—or need easy-to-follow reports and hands-on walkthroughs for your next project—let’s connect!
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Data Scientist(3)
Pratik Bhambri's avatar
Pratik Bhambri
Dadri, India
Data Scientist: Python, RStudio, ML, BI, NLP, DL, LLM
Data Scientist: Python, RStudio, ML, BI, NLP, DL, LLM
Cover image for Portfolio Optimization Project
Portfolio Optimization Project
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5
Cover image for Stock Prediction from Time Series
Stock Prediction from Time Series
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3
Cover image for Customer Segmentation Project
Customer Segmentation Project
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6
Cover image for "AI-Powered Fraud Detection System | 99.96% AUC"
"AI-Powered Fraud Detection System | 99.96% AUC"
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5
Data Scientist(4)
Sparsh Gupta's avatar
Sparsh Gupta
Noida, India
Full-Stack & AI Developer building scalable SaaS products
New to Contra
Full-Stack & AI Developer building scalable SaaS products
Cover image for Grantiv – AI-Powered Grant Discovery Platform
Grantiv – AI-Powered Grant Discovery Platform
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5
Cover image for CaratIQ — Modern Jewelry Management
CaratIQ — Modern Jewelry Management & Catalog Platform Managing dynamic jewelry inventories across multiple sales channels often breaks under traditional database models due to real-time pricing recalculations and complex SKU variations. What I Built: • Dynamic Catalog & Multi-Attribute Filtering: Architected sub-150ms catalog searches handling live metal spot pricing, carat grades, and stone certification tiers without client-side lag. • Server-Rendered Architecture: Leveraged Next.js Server Components to offload bulk queries, significantly reducing initial client bundle size. • Automated Inventory & Invoicing Sync: Integrated custom webhooks and payment flows for instant stock reservation and order processing. • Role-Based Access Control: Built multi-tenant admin dashboards for floor staff, store managers, and suppliers. Tech Stack: Next.js, React, Node.js, PostgreSQL, Tailwind CSS, REST APIs & Webhooks Results: • Sub-150ms Query Speeds: Cut search and filtering latency by over 40% across extensive catalog datasets. • Zero Sync Collisions: Automated live price updates and inventory locks, eliminating overselling across peak sales windows. The Outcome: Transformed a traditionally fragmented retail inventory system into a unified, high-speed SaaS platform that bridges in-store sales and digital catalog operations.
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Cover image for Skej — Conversational AI Scheduling Platform
Skej — Conversational AI Scheduling Platform
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Cover image for CaratIQ — Jewelry Retail Cloud Platform
CaratIQ — Jewelry Retail Cloud Platform
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4
Data Scientist(1)
Vikas Kashyap's avatar
Vikas Kashyap
Delhi, India
Data visualization engineer, Data Analyst, BI Expert
13
Followers
Data visualization engineer, Data Analyst, BI Expert
Cover image for Power BI Dashboard for Paris Olympics 2024
Power BI Dashboard for Paris Olympics 2024
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4
Cover image for Executive Summary Dashboard for Google Merchandise Store
Executive Summary Dashboard for Google Merchandise Store
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Cover image for National Accident Statistics Dashboard in Google Looker Stud...
National Accident Statistics Dashboard in Google Looker Studio: I built an interactive Looker Studio dashboard using Google Sheets as the data source to visualize national accident statistics. The report analyzes accidents by region, time, severity, and demographics. A scheduled data re:fresh every 15 minutes keeps the dashboard updated in real time. As a Data Visualization Expert, I combined automation and design to deliver a clean, insightful, and dynamic Looker Studio dashboard for data-driven decision-making. 🎉 💯 🎉
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Cover image for Ecommerce Analytics Dashboard in Looker Studio
Ecommerce Analytics Dashboard in Looker Studio
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6
Data Scientist(1)