# Deepak Kumar

Deepak Kumar is a remote worker on Himalayas, Senior Software Engineer at Clearwater Security, based in India.

Source: https://himalayas.app/@deepakkumar94

```text
Senior Software Engineer at Clearwater Security building an async LLM orchestration pipeline with FastAPI, LangGraph, and AWS Bedrock.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | India |
| Authorized to work in | India |
| Salary expectations | 4913k+ INR |
| Job categories | AI ML Engineer, Data Scientist |
| Skills | RAG, Large Language Models, LLM Inference, Information Retrieval, BM25, Reciprocal Rank Fusion (RRF), Model Versioning, Machine Learning, Natural Language Processing, Async Inference, Model Serving, fastAPI, LangGraph, AWS, Python |

## About

```text
At Clearwater Security, I built an async LLM orchestration pipeline using FastAPI, LangGraph, and AWS Bedrock, with parallel execution, checkpointing, and retry handling.

At Krista AI, I re-architected RAG retrieval with BM25 and RRF, improving file ranks by 25.6% and chunk ranks by 44% across 1,500 production benchmark queries. I also designed model versioning for 400 ML models and caching and async inference architecture that improved response time by 40% under peak production load.
```

## Experience

### Senior Software Engineer (current)

Clearwater Security. Apr 2026 - Present

```text
Built an async LLM orchestration pipeline using FastAPI, LangGraph, and AWS Bedrock with parallel execution, checkpointing, and retry handling.
```

Skills: fastAPI, LangGraph, AWS, LLM, Async-Programming

### Data Scientist

Krista AI. Nov 2024 - Mar 2026

```text
Re-architected RAG's retrieval architecture using BM25 + RRF, improving file ranks by 25.6% and chunk ranks by 44%. Designed robust model versioning system for 400 ML models and scalable caching and async inference architecture, improving end-to-end response time by 40% under peak load.
```

Skills: RAG, BM25, RRF, Model-Versioning, Caching, Celery, Async-Inference, Fcntl

### Software Engineer

Krista AI. Jul 2022 - Oct 2024

```text
Built no-code ML training infrastructure for FastText text classification models. Implemented model migration system for scikit-learn upgrades across 460+ models, fine-tuned GPT-4o Mini for structured JSON output, and built RAG system using BLOOM-7B and ChromaDB.
```

Skills: FastText, scikit-learn, GPT-4o-Mini, RAG, BLOOM-7B, ChromaDB, Java, Testing

## Education

### Indian Institute of Technology Kanpur

Bachelor of Science, Mathematics & Scientific Computing. 2018 - 2022

```text
Bachelor of Science in Mathematics & Scientific Computing from the Indian Institute of Technology Kanpur, completed in 2022.
```

## Tech stack

- Kubernetes
- Jenkins
- NumPy
- PostgreSQL
- MongoDB
- Redis
- Python
- Java
- C++
- TensorFlow
- PyTorch
- scikit-learn
- Celery
- Flask
- FastAPI
- Transformers
- Hibernate
- JUnit
- Git
- Docker
- XGBoost
- LangChain
- LlamaIndex
- ChromaDB
- LangGraph
- LangSmith
- Retrieval-Augmented Generation (RAG)
- AWS

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

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