Principal Data Scientist

Sorry, this job was removed at 12:19 p.m. (CST) on Friday, Oct 10, 2025
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Navi Mumbai, Thane, Maharashtra
Hybrid
Enterprise Web • Fintech • Financial Services
Empowering Investor Success
The Role
As an expectation a fitting candidate must have/be:
  • Ability to analyze business problem and cut through the data challenges.
  • Ability to churn the raw corpus and develop a data/ML model to provide business analytics (not just EDA), machine learning based document processing and information retrieval
  • Quick to develop the POCs and transform it to high scale production ready code.
  • Experience in extracting data through complex unstructured documents using NLP based technologies.

Good to have: Document analysis using Image processing/computer vision and geometric deep learning
Technology Stack:
Python as a primary programming language.
Conceptual understanding of classic ML/DL Algorithms like Regression, Support Vectors, Decision tree, Clustering, Random Forest, CART, Ensemble, Neural Networks, CNN, RNN, LSTM etc.
  • Programming:
    • Must Have: Must be hands-on with data structures using List, tuple, dictionary, collections, iterators, Pandas, NumPy and Object-oriented programming
    • Good to have: Design patterns/System design, cython
  • ML libraries:
    • Must Have: Scikit-learn, XGBoost, imblearn, SciPy, Gensim
    • Good to have: matplotlib/plotly, Lime/sharp
  • Data extraction and handling:
    • Must Have: DASK/Modin, beautifulsoup/scrappy, Multiprocessing
    • Good to have: Data Augmentation, Pyspark, Accelerate
  • NLP/Text analytics:
    • Must Have: Bag of words, text ranking algorithm, Word2vec, language model, entity recognition, CRF/HMM, topic modelling, Sequence to Sequence
    • Good to have: Machine comprehension, translation, elastic search

  • Deep learning:
    • Must Have: TensorFlow/PyTorch, Neural nets, Sequential models, CNN, LSTM/GRU/RNN, Attention, Transformers, Residual Networks
    • Good to have: Knowledge of optimization, Distributed training/computing, Language models
  • Software peripherals:
    • Must Have: REST services, SQL/NoSQL, UNIX, Code versioning
    • Good to have: Docker containers, data versioning
  • Research:
    • Must Have: Well verse with latest trends in ML and DL area. Zeal to research and implement cutting areas in AI segment to solve complex problems
    • Good to have: Contributed to research papers/patents and it is published on internet in ML and DL

Morningstar is an equal opportunity employer.
Morningstar's hybrid work environment gives you the opportunity to work remotely and collaborate in-person each week. We've found that we're at our best when we're purposely together on a regular basis, at least three days each week. A range of other benefits are also available to enhance flexibility as needs change. No matter where you are, you'll have tools and resources to engage meaningfully with your global colleagues.
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The Company
HQ: Chicago, IL
12,700 Employees
Year Founded: 1984

What We Do

At Morningstar, we believe in building great products in-house in a highly collaborative, agile environment where we focus on technical excellence, the user experience, and continuous improvement. Our technologists represent a range of skills and experience levels, but they all view their work as a craft and push technology’s boundaries.

Why Work With Us

Imagining big things is in our blood -- it's transformed us from a company with just a few employees in 1984 to a leading independent investment research company with a worldwide presence today. As of April 2020, we acquired Sustainalytics to drive long-term meaningful outcomes for investors in the ESG space. Join us on this exciting journey!

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Morningstar Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

Typical time on-site: 3 days a week
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