# vishwajit kumar vishnu

vishwajit kumar vishnu is a remote worker on Himalayas, Senior Analyst at Tiger Analytics, based in India.

Source: https://himalayas.app/@vishwajitkumarvishnu

```text
Senior Data Scientist at Blue Yonder building stockout forecasts with 0.82 precision.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | India |
| Authorized to work in | India |
| Salary expectations | 4294k+ INR |
| Job categories | Data Scientist, Machine Learning Engineer |
| Skills | Data Science, Machine Learning, Deep Learning, Machine Learning Systems, ML Model Architectures, Model Evaluation, Probabilistic Forecasting, Stock Forecasting, Natural Language Processing, RAG, graph neural networks, Semantic Search, Summarization, Column Extraction, TFX |

## About

```text
At Blue Yonder, I built TFX and Kubeflow pipelines for item- and location-level stockout risk forecasting, reaching 0.82 precision. I also developed alert-threshold tuning components so merchandising teams can balance precision and recall.

I developed probabilistic demand forecasts and a FastAPI scoring service for distribution-center stockouts, and rearchitected the transit lead-time model as a monotonic quantile network.

Previously, at Tiger Analytics, I implemented a RAG and Graph Neural Network system for SQL column extraction and built an invoice-intelligence pipeline. At RingCentral, I designed semantic search trackers and worked on meeting summarization; in research, I implemented Transformer-XL and proposed training methods that improved WikiText-103 perplexity.
```

## Experience

### Senior Analyst

[Tiger Analytics](https://himalayas.app/companies/tiger-analytics). Dec 2023 - Mar 2025

```text
Implemented a RAG system with a Graph Neural Network for SQL column extraction and built an end-to-end pipeline for automatic car part identification from documents.
```

Skills: RAG, graph-neural-networks, Databricks, PyTorch, Amazon-Textract, LLM, Python

### Data Scientist

[RingCentral](https://himalayas.app/companies/ringcentral). Jul 2022 - Nov 2023

```text
Designed semantic search trackers for sales conversations and enhanced meeting summarization using transformer models.
```

Skills: Sentence-BERT, PyTorch, Python, Hugging-Face, Flan-T5, BRIO, ChatGpt

### Senior Data Scientist

[Walmart](https://himalayas.app/companies/walmart-com)

```text
Developed probabilistic demand forecasts and stockout risk models using TensorFlow and TFX pipelines. Authored custom evaluators and built a FastAPI scoring service for revenue impact analysis.
```

Skills: TensorFlow, TFX, Kubeflow, Snowflake, Apache-Beam, fastAPI, Python, deep-neural-networks, Poisson-Loss, Quantile-Regression

## Education

### Indian Institute of Technology Madras

M.S. (Research), Computer Science. 2019 - 2022. Grade: 7.62

```text
Pursued M.S. (Research) in Computer Science with a GPA of 7.62.
```

### Maulana Abul Kalam Azad University of Technology

Bachelor of Technology, Computer Science. 2013 - 2017. Grade: 8.00

```text
Completed Bachelor of Technology in Computer Science with a GPA of 8.00.
```

## Tech stack

- Snowflake
- Pandas
- Databricks
- Python
- TensorFlow
- PyTorch
- scikit-learn
- Kubeflow
- FastAPI
- Apache Beam
- SQL
- Hugging Face
- Amazon Textract

To contact vishwajit kumar, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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