Chandrima Das Home

Hi, I'm

ChandrimaDas

A data scientist with a background in electronics and communication engineering. I work across Python, data analytics, machine learning and signal processing, and I design interfaces that make the results clear and easy to use.

  • Robotics & AI at IIT Guwahati
  • Junior Data Scientist at Calsoft
  • ML research with SINP
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Projects

Five things I built and shipped, each running live. Hover a preview to scroll through the real site.

gradient-atlas.chandrima-das.com
Screenshot of the Gradient Atlas website
Open live site

Interactive ML course

Gradient Atlas

Learn ML by building it, not memorising it.

24 chapters of classical machine learning as an explorable map, study route, flashcards and a Python-style console. You write each algorithm in plain NumPy, then check it against scikit-learn.

  • 439linked sections
  • 512flashcards
  • 665quiz questions
  • Classical ML
  • NumPy
  • Interactive graph
  • Spaced repetition
neutron-gamma-detector.chandrima-das.com
Screenshot of the InDEx neutron/gamma dashboard
Open dashboard

Physics research with SINP

InDEx n/γ Discrimination

A neutron's acoustic signature versus a gamma ray's.

My thesis work for a superheated-liquid dark-matter detector: pulse localisation, STFT features, and logistic regression and SVM written from scratch. Drop in a waveform and it classifies it in your browser.

  • 512-DSTFT features
  • 200real detector events
  • 100%peak accuracy
  • Signal processing
  • STFT
  • SVM
  • In-browser ML
cad.chandrima-das.com
Screenshot of Construction Copilot
Open app

LLM agent for CAD drawings

Construction Copilot

Measured, not guessed.

Ask building plans, distribution boards and circuits anything in plain English. Deterministic tools measure every number from the DXF, and hybrid search cites the exact spec clause for pass or fail checks.

  • 20measurement tools
  • HybridBM25 + vector search
  • Offlinedesktop mode
  • Python
  • ezdxf
  • Tool calling
  • RAG
  • Vision model
rag-doc-qa-by-chandrima.netlify.app
Screenshot of Marginalia
Try it

Retrieval-augmented Q&A

Marginalia

Ask the document, not the internet.

Upload a PDF and get answers grounded only in its most relevant passages. Parsing happens in the browser, and embeddings live in Netlify Blobs, so there's no external vector database.

  • Top 4passages per answer
  • 0servers to manage
  • Geminiembeddings
  • RAG
  • pdf.js
  • Netlify Functions

There's more on GitHub

Computer vision, robotics and AutoML experiments, plus hackathon work.

All repositories

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© 2026 Chandrima DasProgress is a thousand small gaps, closed.

Experience

Industry data science, physics research, and a master's degree in robotics running alongside both.

3roles in industry and research
2engineering degrees
1publication in preparation
  1. Dec 2025 to present
    WorkCurrentDec 2025 to present

    Junior Data Scientist

    Calsoft Inc.

    • Clean and analyse real-world datasets from end to end.
    • Build Power BI dashboards that product teams use to make decisions.
    • Python
    • Pandas
    • Power BI
    • EDA
  2. Ongoing
    EducationOngoing

    Master's in Robotics & Artificial Intelligence

    Indian Institute of Technology Guwahati

    • Postgraduate study in robotics and artificial intelligence.
    • Robotics
    • Machine learning
    • AI
  3. In preparation
    PublicationIn preparation

    ML-based discrimination of neutron and gamma-ray acoustic signals

    With the Saha Institute of Nuclear Physics

    • Machine Learning–Based Discrimination of Neutron and Gamma-Ray Induced Acoustic Signals in Superheated Liquid Detectors.
    • Writing up the thesis results for publication.
    • Manuscript in preparation
  4. Mar 2025 to Jul 2026
    ResearchMar 2025 to Jul 2026

    Thesis Researcher

    Saha Institute of Nuclear Physics

    • Built an end-to-end neutron/gamma classification pipeline for a superheated-liquid dark-matter detector.
    • Extracted 512-D STFT features from 200 real detector events.
    • Wrote logistic regression and SVM from scratch, reaching up to 100% accuracy.
    • Signal processing
    • STFT
    • SVM
    • Research
    See the live dashboard
  5. Jun 2025 to Dec 2025
    WorkJun 2025 to Dec 2025

    AI/ML Intern

    Calsoft Inc.

    • Developed machine learning, deep learning and LLM solutions in Python.
    • Validated models and dashboards before release.
    • Deep learning
    • LLMs
    • Model validation
  6. B.Tech
    EducationB.Tech

    B.Tech in Electronics & Communication Engineering

    RCC Institute of Information Technology

    • Graduated with a CGPA of 8.2.
    • The signals and systems foundation behind my signal-processing work.
    • Electronics
    • Signals & systems
    • Communication

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© 2026 Chandrima DasProgress is a thousand small gaps, closed.

Skills

Six areas I work across. Hover or tap a panel to open it.

Machine learning

Machine learning

Classical ML from scratch, SVMs, logistic regression, AutoML pipelines and careful model validation.

  • scikit-learn
  • NumPy
  • TensorFlow
Pythonscikit-learnNumPyPandasTensorFlowOpenCVYOLOv8LangChainGeminiPower BIPythonscikit-learnNumPyPandasTensorFlowOpenCVYOLOv8LangChainGeminiPower BI
JavaScriptHTMLCSSTailwindFlaskMatplotlibEasyOCRNetlifyVercelGitLinuxJavaScriptHTMLCSSTailwindFlaskMatplotlibEasyOCRNetlifyVercelGitLinux

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© 2026 Chandrima DasProgress is a thousand small gaps, closed.

Contact

Whether it's a role, a research collaboration or a question about my work, I'd be glad to hear from you.

Let's work together.

I'm open to opportunities in data science, machine learning and analytics, as well as research collaborations and roles in education. Email is the quickest way to reach me.

Open to

  • Data science & analytics roles
  • Machine learning projects
  • Research collaborations
  • Teaching & education

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© 2026 Chandrima DasProgress is a thousand small gaps, closed.