Data Scientist · Freelancer

Ship a production data system in weeks,
not quarters.

Dashboards, ML services, and RAG chatbots for seed-stage SaaS founders. Lean stack defaults. Code your team owns from day one.

Atharva Badhe
Available for Projects Response within 24h
70% Faster Analysis
LIFO AI
Built ML services at LIFO AI
Wavess.io
Built fintech competitive intelligence dashboards at Wavess.io
Stack
Python, FastAPI, PostgreSQL, LangChain, Streamlit
4
Public projects on GitHub

RECENT WORK

Recent results from real engagements

01
70% faster competitor research

A fintech SaaS sales team cut per-prospect research from 3 hours to under 1, using a Streamlit dashboard plus ETL I built at Wavess.io.

See the Dashboards service
02
Production ML for perishable inventory

A food-tech startup runs demand forecasting and shelf-life prediction on a FastAPI ML service I built at LIFO AI. Multiple retail locations, automated reorder logic.

See the Predictive ML service
03
84% of fraud caught at 0.28% alert volume

A public LightGBM project on the Credit Card Fraud dataset. 284,807 transactions, severe imbalance. Code, model, and dashboard live on GitHub.

See on GitHub

SERVICES

Three things I take on. Nothing else.

01
Analytics Dashboards

Stop exporting CSVs by hand.
A dashboard sitting on top of your real product data, shipped in 2 to 4 weeks. Streamlit or Metabase, your call. Built on Postgres so your team isn't paying per-seat fees forever.

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02
Predictive ML

Automate the decision someone makes 100 times a week.
Forecasting, scoring, anomaly detection. Deployed as a FastAPI service with monitoring and a retraining script your engineers can run themselves.

Learn More
03
AI Automation

Let your team query your docs in plain English.
A RAG chatbot over your internal docs, tickets, or playbooks. Vector RAG on Postgres pgvector for most cases. GraphRAG with Neo4j when your data has relationships worth following. Pilot pricing on the first three engagements.

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How It Works

Five weeks from scoping call to handoff.

01
Week 0. Scoping call.

A 30-minute call. We go through your data setup and the decision you want the data to inform. I tell you straight whether the project is a fit for me. No deck. No pitch.

02
Week 1. Paid discovery.

I write up a discovery document covering the build plan, the stack, milestones, and your fixed price. If at the end of the week it isn't the right fit, you keep the document and we part ways. No contract trap.

03
Weeks 2 to 4. Build and ship.

I work in your repo. I push to staging. We have one weekly video call. You see progress every week, not at the end.

04
Week 5. Handoff.

Code review with your engineers. Runbook for retraining, redeployment, and monitoring. After this week, your team owns the system.

Case Study

How a fintech SaaS sales team cut competitor research from 3 hours to under 1.

The setup: A fintech SaaS startup's sales team was spending 3 to 4 hours per prospect, stitching Trustpilot reviews, hiring data, and industry news together by hand. Some pitches got prepped poorly. Some got skipped.

What got built: An ETL pipeline that pulled 520+ data points (154 hiring records, 366 customer reviews) from Trustpilot API and industry news scrapers. Multilingual sentiment analysis with text normalization for regional languages. A Streamlit dashboard with filters by competitor, market segment, and time period.

What changed: Per-prospect research time dropped 70%, from 3 hours to under 1. Reps walked into pitches with named competitor weaknesses to position against. The team ran more pitches per week with better prep on each one.

Stack: Python, n8n, BeautifulSoup, Trustpilot API, Streamlit.

Work done as Data Science Intern at Wavess.io between July and October 2025.

Learn more about my service
Project timeline
Day 1
Discovery call
Diagnosed real problem — internal search, not customer chatbot
Day 3
Data audit
Mapped 4 Notion workspaces, 2 Confluence spaces, 1 Postgres DB
Day 6
RAG pipeline built
Ingestion, chunking, embedding, retrieval — all tested against real queries
Day 9
Slack integration live
Team starts using in beta — 40 queries on day one
Day 14
Full deployment + monitoring
91% resolution rate. Logging + eval dashboard live. Team trained.

WHO YOU'RE HIRING

I'm Atharva Badhe.

Atharva Badhe

A full-time freelance data scientist based in Mumbai, India. Bachelor's in AI and Data Science from Mumbai University. Two startup engagements behind me: a fintech competitive-intelligence dashboard at Wavess.io and an inventory ML service at LIFO AI.

The case studies on this site are anonymized but real. The GitHub link in the nav has the public-data versions if you want to read the code first.

Learn more

From the Blog

Honest lessons from real projects

All Posts

Before you book

Common Questions about me

Specific to my services

Ask me directly

One of three projects: a dashboard on top of your scattered product data, a forecasting or scoring model deployed inside your product, or a RAG chatbot that answers questions over your internal docs. The Services pages have specifics.

I quote per project. You get one fixed number after a 20-minute scoping call. Pricing is calibrated to seed-stage budgets and well below typical agency or senior-freelancer rates. If scope changes mid-project, we agree to a written change order before anything extra gets built.

Lead time is one to two weeks. Engagements run 4 to 12 weeks. I take a maximum of two clients at a time so each project gets focus.

Yes, fully remote. I worked async with German product and sales teams at Wavess.io and the rhythm worked. Slack, Notion, GitHub, plus a weekly video call covers most needs.

Yes. That's what the scoping call is for. Most founders come in asking for one and leave with a different recommendation. The first call is free and there's no obligation after.

Python, FastAPI, PostgreSQL on the backend. Streamlit and Metabase for dashboards. LangChain, LlamaIndex, and pgvector for RAG. Neo4j and Ollama for graph-based RAG. n8n for workflow automation. Power BI or Tableau if you have an existing license.

Yes. About half of my work is translating between business questions and technical implementation. The Wavess.io dashboard was used by a sales team that didn't write SQL. The output was a one-click dashboard, not a query tool.

Me. There's no junior to hand the work to and no offshore team behind the scenes. I take a maximum of two engagements at a time so each one gets full attention.

Ready to start?

Your data is already telling you something.
Let's find out what.

Book a free 30-minute scoping call. We go through your data setup, what you're trying to figure out, and whether the project is a fit for me. No deck. No obligation.