DATA SCIENTIST — everything I build, you can verify the math.
I deliver transparent, auditable data models where every number can be checked. Specializing in quantitative research, statistical modeling, Data insights and automation.
QUANTITATIVE RESEARCH & PORTFOLIO CONSTRUCTION :
I build and backtest equities, with live execution and kill switches on Alpaca where needed. Position sizing, risk allocation, rebalancing logic, all of it grounded in the math, not gut feel.
Quick example of how I think: a momentum strategy covering 145 stocks was delivering 41% CAGR. Expanding to 245 stocks dropped it to 36%. Counterintuitive. The root cause: New stocks were selected on hot recent momentum, so by entry their cycle was already done. Built a 5-filter Monte Carlo system, tested 700+ parameter combinations, to identify which satellites are early-cycle vs peaked. Result: 43%+ CAGR with lower drawdown than the 145-only baseline. The problem wasn't the strategy. It was the timing of entry.
Another example: I built a live MBS (Mortgage-Backed Securities) forecasting and trading system for a fund client, covering 265+ cohort securities across weekly, monthly, and quarterly return horizons. The interesting part wasn't the ML, it was the feature design. Standard technical indicators on bond prices are noise. What actually drives MBS price movements is duration, convexity, prepayment rates, regime variables like curve steepness, VIX, and Fed MBS holdings. Every feature built from first principles, nothing borrowed from a vendor that can't be verified.
This is where I spend most of my time. Systematic backtests, portfolio construction, Monte Carlo optimization. No black boxes, no ML hype every output can be checked in a spreadsheet.
Not "add more data." Find the actual structure driving returns, and build features that reflect it.
DATA SCIENCE & ANALYTICS
I've worked across real estate, e-commerce, and financial analytics, usually called in when a team has data but no clear answer yet. I focus on getting to a decision you can act on, not a 40-slide deck.
Results worth mentioning:
ML automation cut a client's data processing from 286 days to 1 day, after they'd run the same manual process for two years without realizing it was automatable
Ad spend attribution model that improved campaign ROI by 25%
WHAT MAKES ME DIFFERENT
▸ I show my work. Every model, every analysis, every number comes with the method behind it, so you're never trusting a black box
▸ I'd rather tell you a strategy doesn't hold up than build you something that looks good and fails in real world.
▸ I scope real problems fast: send me what you're working with and I'll tell you within 24 hours if and how I can help
Machine Learning
Artificial Intelligence
Data Analysis
Data Science
Python
SQL
Deep Learning
Microsoft Power BI
Time Series Forecasting
Data Visualization
A/B Testing
Generative AI
Natural Language Processing
LangChain
Statistical Analysis
Vipin A.
New Delhi, India
$20/hr
5.0
403 jobs
I am committed to:
☑ Meeting project deadlines with precision
☑ Striving for perfection in every detail
☑ Providing regular progress updates
☑ Adding substantial value to each project
With an impressive 25-year tenure in the corporate sector, complemented by five productive years on Upwork, I bring a wealth of expertise in Sourcing and Procurement, Market Research, Supply Chain and Finance. My career has been marked by deep engagement with certified authorities across diverse industries, including Textiles, Organic Products, and Machinery, ensuring that sourcing meets global standards. Here’s how I can add value to your projects:
📈MARKET RESEARCH:
Proficient in conducting in-depth market analysis, leveraging insights from certified market research data sources to inform strategic business decisions. Skilled in competitive intelligence, trend analysis, and market forecasting to guide product positioning and market entry strategies.
Some of the recent Market Research projects completed,
🏦Banking and Financial Institution
📊Corporate Research and Data Retrieval
🥡Commodity Price Research
🧾Employee Retention Tax Credit
🏛️Capital markets and banking
🔬Market research analysts + Product Research specialist
⌚Brand Research
👩🏫AI Training for Creative Writers
🗝️Research the oldest companies in India
🏭Industry research India
🈺Business development research
👨🔬Research of the global market of online testing platforms
📦SOURCING AND PROCUREMENT:
Extensive experience in collaborating with the suppliers having certification like GOTS (Global Organic Textile Standard), ISO (International Organization for Standardization), and BIS (Bureau of Indian Standards) and others to ensure product compliance and quality.
Some of the Products recently helped clients to source,
🪑Mango Wood Furniture
🛄Leather Bags
🏗️Construction Equipment
👕Cotton Fabric
🚪Aluminum sheets
🛏️Cushion and Pillows
☢️HVAC, Fans, and Dehumidifiers
🌿Indian Herbs
💪Fitness products
🔋Battery Making Machine
🖽Tiles logistic and verification
🛌🏿Blanket
Adept at navigating the complexities of global supply chains, from supplier identification to negotiation and compliance with sustainability standards.
🚢 SUPPLY CHAIN MANAGEMENT:
➡️Vendor Sourcing and Evaluation
➡️Contract Negotiation
➡️Quality Control
➡️Logistics Management
➡️Inventory Management
➡️Cost Optimization
➡️Supply Chain Analysis and Reporting
➡️Risk Management
➡️Sustainable Sourcing
➡️Client Communication and Coordination
🫳DROPSHIPPING:
Managing,
➡️Sourcing
➡️Relationships Building
➡️Inventory
➡️Order Processing
➡️Quality
➡️Shipping
➡️Cost Optimization
➡️Customer Service
➡️Market Analysis
➡️Returns
➡️Listings
➡️E-commerce
➡️Compliance
➡️Private Labeling
➡️Packaging
➡️Manufacturing
➡️Branding
☑Key Achievements:
🔝Top Rated Plus
➡️Successfully managed over 300 projects on Upwork, demonstrating versatility and a commitment to excellence across multiple domains.
➡️Facilitated clients' collaboration with certification authorities, significantly enhancing their product credibility and market acceptance.
➡️Developed and executed market research and recruitment strategies that have tangibly improved client operations and competitive positioning.
☑Why Choose Me:
➡A broad spectrum of experience across critical business functions, backed by a substantial career in the corporate world and successful freelance projects.
➡️Demonstrated capability in ensuring product and service compliance with recognized standards and certifications.
➡️A committed partner in achieving your strategic objectives, offering a blend of analytical prowess, market insight, and operational excellence.
I am keen to leverage my extensive experience and network of certified authorities to support your business objectives. Let's connect to discuss how we can drive your project to success together. I am an experienced professional with more than two decades of experience.
Please have a look at the feedback from clients for my work:
☑ "The best sourcer I have worked with in India. Great work!"(Jul , 2024)
☑"Excellent agent - understood the task perfectly, everything completed in time and keeps the employer updated throughout the process. Thanks Vipin!" (Repeated client, June, 2024)
☑ "Vipin's meticulous preparation and enthusiastic engagement throughout our workshop were pivotal in deepening our understanding the local markets, regulation and logistics in India. Moving forward, we are eager to maintain regular communication with him" (May 30, 2024)
I believe in perfection with a quick turnaround. I never keep the projects on hold and complete them within the deadline. Looking forward to having a great association.
Lead Generation
Research Papers
Presentations
Company Research
Business Presentation
Research Proposals
Startup Consulting
Data Analysis
Sheik S.
Chennai, India
$30/hr
5.0
30 jobs
If you're looking for a Looker Studio (Data Studio) Expert... Please stop scrolling, you've found the right one.
Whether you run an e-commerce business, digital marketing agency, or SEO service, I specialize in helping you bring all your data into one place and make it work for you.
🛠️ Many clients come to me saying:
“We're tracking performance manually in Google Sheets. It takes time, has errors, and doesn't scale well.”
Sound familiar? You're not alone.
That's exactly where I come in.
🧠 I’m not just a dashboard builder, I’m your data partner.
I help you automate reporting, improve data accuracy, and visualize your performance clearly, using tools like:
→ Looker Studio (Google Data Studio)
→ Google Sheets & BigQuery
Data Connectors:
→ Supermetrics, Windsor ai, Power My Analytics, Funnel io, Catchr, Porter Metrics
Data Sources:
→ GA4, Google Ads, Meta Ads, TikTok Ads, LinkedIn Ads, Amazon Ads
→ Shopify, Amazon Seller Central, WooCommerce, Stripe, PayPal
→ HubSpot, Klaviyo, Mailchimp, Zoho CRM, GoHighLevel
→ Google Search Console, Google Trends, and more
✅ How I help businesses like yours
Whether you're an agency juggling multiple clients or a solo founder trying to make sense of your data, I can help:
↳ Design clean, branded, easy-to-read dashboards
↳ Connect and blend data from multiple platforms
↳ Migrate from rigid tools like AgencyAnalytics to more flexible, custom reporting solutions
↳ Automate your current Google Sheets workflows
↳ Build reusable templates to scale across clients
↳ Fix broken connectors, permissions & filter issues
↳ Provide ongoing support, not just a one-time report
📊 My approach to data analytics
My expertise lies in crafting data-rich dashboards that highlight key metrics and trends. Whether you're looking to track business performance, uncover hidden insights, or use data to support strategic decisions, I have the skills to deliver high-quality analyses tailored to your needs.
I have built numerous dashboards that have helped my clients leverage data analysis for better decision-making. My services are perfect for those who believe in the power of data to drive business intelligence and strategic insights. I am dedicated to providing the analytical expertise you need to find the answers and solutions your business seeks.
💡 Use cases I've delivered:
✔️ Looker Studio dashboards for GA4, Meta Ads, Google Ads, Shopify, Klaviyo
✔️ Unified marketing dashboards with true cross-channel ROAS
✔️ SEO dashboards using Google Search Console & Google Trends
✔️ Revenue tracking dashboards for Stripe, PayPal, and WooCommerce
✔️ Blended reports across CRM, email, ads & web traffic
✔️ Custom templates for e-commerce agencies
➕ Custom dashboards for all kinds of industries and data
🤝 Why clients choose me:
• Business-first mindset. I think like a stakeholder, not a freelancer
• Clear communication and delivery without delays
• Design-focused approach to make data easy and beautiful
📊 Tools & Platforms
Visualization: Looker Studio
Warehouse: Google Sheets, BigQuery
Connectors: Supermetrics, Windsor ai, Power My Analytics, Funnel io, Catchr, Porter Metrics
Data Sources I work with:
🛒 Shopify, Amazon, WooCommerce
📣 Meta Ads, Google Ads, LinkedIn, TikTok, Klaviyo
📈 GA4, Google Search Console
💳 Stripe, PayPal
🧩 Hubspot, Mailchimp, GoHighLevel
…and many more. If your data lives somewhere else, we can bring that in too.
No matter the domain, I'm ready to learn and deliver valuable insights that drive results.
"The goal isn’t more data, it’s better decisions."
Ready to automate and scale your reporting?
Let’s build something that saves time, improves decisions, and impresses your clients.
📩 Available for 3 new projects this July 2026.
Looker Studio
Google Sheets
Google Sheets Automation
Google Analytics 4
Google Analytics Report
BigQuery
Supermetrics
Analytics Dashboard
Dashboard
Interactive Data Visualization
Data Visualization
Data Analysis
Data Integration
Data Modeling
SQL
Tejas L.
Pune, India
$15/hr
5.0
34 jobs
As a freelance professional with a Master's in Science in Statistics, I bring a unique blend of academic knowledge and practical expertise to every project I undertake. With a strong foundation in statistical theory, advanced data analysis techniques and the ability to effectively communicate complex statistical concepts, I am equipped to provide valuable insights and solutions to clients across various industries.
My academic journey in pursuing a Master's of Science in Statistics has provided me with a solid understanding of statistical principles and their applications. Through coursework in probability theory, statistical inference, regression analysis, experimental design, and multivariate analysis, I have gained a comprehensive skill set that enables me to tackle diverse data analysis challenges.
One of the key aspects of my academic training has been the emphasis on statistical software and programming languages. I have developed proficiency in utilizing tools such as R and Excel to manipulate, analyze, and visualize large datasets. This technical expertise allows me to efficiently process and extract meaningful information from complex data, facilitating evidence-based decision-making for my clients.
Data Analysis
Microsoft Excel
RStudio
Hypothesis Testing
Regression Analysis
Statistics
R
Data Mining
Probability Theory
Multivariate Statistics
Machine Learning
Data Modeling
Data Analytics & Visualization Software
Biostatistics
R Shiny
Akash K.
Pune, India
$15/hr
5.0
9 jobs
I am a Data Scientist with a Master's degree in Statistics and professional experience delivering data-driven solutions through statistical modeling, machine learning, and advanced analytics. I help businesses, researchers, and organizations transform complex data into actionable insights that support informed decision-making.
My expertise includes statistical analysis, predictive modeling, machine learning, data visualization, and interactive application development. I have worked on projects across business analytics, healthcare, biostatistics, transportation, and academic research, developing solutions that are both technically robust and practically useful.
I specialize in building end-to-end analytical workflows, from data collection and preprocessing to modeling, visualization, and reporting. I also develop interactive applications using R Shiny and other Posit products to help stakeholders explore data and automate decision-making processes.
Areas of Expertise
• Statistical Modeling and Data Analysis
• Machine Learning and Predictive Analytics
• Hypothesis Testing and Experimental Design
• Regression Analysis and Multivariate Methods
• Data Cleaning, Preprocessing, and Feature Engineering
• Exploratory Data Analysis (EDA)
• R Shiny Application Development
• Interactive Dashboards and Data Visualization
• Business Analytics and Decision Support
• Research and Biostatistical Analysis
Technical Skills
• Python (Pandas, NumPy, Scikit-learn, XGBoost)
• R (Shiny, tidyverse, ggplot2, caret)
• SQL
• Posit Products (Shiny, Quarto, R Markdown)
• Excel and Power BI
• Statistical and Machine Learning Techniques
• Master's Degree in Statistics
• Top Rated Freelancer with 100% Job Success
• Experience delivering machine learning, analytics, and statistical solutions
• Strong communication with both technical and non-technical stakeholders
• Commitment to producing accurate, reproducible, and well-documented work
Whether you need advanced statistical analysis, predictive models, interactive R Shiny applications, or comprehensive data solutions, I am committed to delivering high-quality results that create measurable value.
Analytical Presentation
Machine Learning Model
Data Analysis
Machine Learning
Artificial Intelligence
Data Mining
Mining
R
RStudio
Image Segmentation
Statistical Analysis
Ashutosh J.
Ranchi, India
$25/hr
5.0
9 jobs
Quantitative Economist. I build forecasting and econometric models, and I evaluate LLMs and AI agents for enterprise clients. Top Rated, 100% JSS, 5.0 on every reviewed contract.
The forecasting side covers ARIMA, ARIMAX, SARIMA, VAR, GARCH, Prophet, LSTM, and XGBoost, for sales, demand, inventory, and financial data. I backtest and report error ranges honestly.
The econometrics side is regression, panel data, VAR/SVAR, cointegration, difference-in-differences, propensity score matching, and event studies. I built a Blanchard-Perotti fiscal SVAR for a research project. Available for applied work, paper reviews, and model audits.
For ML and DL work, I use Scikit-Learn, XGBoost, and TensorFlow. I check for data leakage, do proper cross-validation, and flag where a model is likely to fail before you deploy it.
For general data analysis, I do EDA, hypothesis testing, A/B testing, and dashboards in Tableau, Power BI, and Streamlit. If your stakeholders need p-values explained in plain English, that's fine too.
The AI evaluation work started with enterprise clients on Upwork: RLHF, response rating, DeepResearch review, hallucination detection, red-teaming. Now I do the same for AI agents: rubrics, benchmarks, inter-rater reliability, evaluation pipelines. Not many people do both the statistics and the AI evaluation side. I do.
Stack: Python, R, SQL, SAS, Statsmodels, Scikit-Learn, XGBoost, Prophet, TensorFlow, Pandas, Tableau, Power BI, Streamlit, LabelBox, Scale.
I think like an economist, which means I look for causation, not just correlation. I tell clients when the data doesn't support what they were hoping to find. And I explain things clearly, whether you're a CEO or a PhD supervisor.
Time Series Analysis
Data Annotation
Data Labeling
Artificial Intelligence
Machine Learning
Data Science
Python
Data Preprocessing
Quantitative Analysis
Data Cleaning
Computer Vision
Statistics
Predictive Analytics
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