Priyank Sahu

AI Researcher

Mumbai, Maharashtra, India5 yrs 5 mos experience

AI EnabledAI ML Practitioner

Key Highlights

Expert in building production-ready GenAI systems.
Strong foundation in Data Science and Machine Learning.
Proficient in NLP and predictive modeling techniques.

Stackforce AI infers this person is a GenAI and Data Science specialist with a focus on AI applications.

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Skills

Core Skills

GenaiRetrieval-augmented Generation (rag)SqlLanggraphNlpData SciencePredictive Modeling

Other Skills

ANNAgentic AIArtificial Intelligence (AI)AutoGenBayesian networkData MiningData visualisationForecastingGuide data modellingLangChainLinear RegressionMicrosoft Power BIMicrosoft SQL ServerPythonPython (Programming Language)

About

I am a GenAI engineer focused on building reliable, production-ready AI systems, not just demos. My primary work centers around Retrieval-Augmented Generation (RAG), Agentic AI, and LLM-powered analytics, where accuracy, traceability, and scalability matter. I have built: RAG-based chatbots with citation support to reduce hallucinations Text-to-SQL systems using AutoGen for natural language analytics Agentic AI workflows using LangChain, with a strong understanding of LangGraph for production orchestration Alongside GenAI, I have a strong foundation in classical Data Science and Machine Learning, having worked on: Regression models for prediction and business insights NLP pipelines for text processing and feature extraction Model evaluation, feature engineering, and error analysis This combination allows me to design GenAI systems with a deep understanding of data, modeling trade-offs, and evaluation, rather than treating LLMs as black boxes. Tech Stack: Python • GenAI • LangChain • LangGraph • AutoGen • Gemini API • Vector Databases • SQL • Machine Learning • NLP I am actively looking for opportunities where I can build and scale real-world GenAI applications.

Experience

Bristlecone

AI Engineer

Feb 2026 – Present · 1 mo · Mumbai, Maharashtra, India · Remote

Fractal

Consultant

Sep 2023 – Jan 2026 · 2 yrs 4 mos · Mumbai, Maharashtra, India · Remote

Project 1: RAG Chatbot with Citations
Built a Retrieval-Augmented Generation chatbot that provides grounded answers along with document citations, improving trust and reducing hallucinations.
Highlights:
Semantic chunking with overlap
Vector search using ANN
Citation via metadata
Evaluation pipeline
Project 2: Text-to-SQL using AutoGen
Built a multi-agent Text-to-SQL system where specialized agents collaboratively convert natural language queries into validated SQL.
Highlights:
Agent-based reasoning
SQL validation
Explainable outputs
Designed for business users
Project 3: Agentic AI / LangGraph
Designed LangGraph-based workflows to productionize GenAI pipelines with state management, retries, and validation.
Project 4 : NLP Sentiment Analysis
Developed a comprehensive Survey Analytics solution using
Python and R to integrate multi-source data, enhance
application performance, and drive data-informed client
decisions; applied NLP and prompt engineering to categorize
comments and perform sentiment analysis for deeper insights.
Improved survey response rates and stakeholder engagement
by implementing structured weekly/monthly reporting and
designing Excel dashboards to visualize key metrics and
sentiment trends.
Automated manual Excel tasks with Python scripts, saving over
20 hours per month, and supported efficient database
migration on Azure Databricks by developing PySpark scripts.

GenAIRetrieval-Augmented Generation (RAG)LangChainLangGraphAgentic AIANN+1

S&p global

Consulting Analyst (Data Science)

Feb 2021 – Jul 2023 · 2 yrs 5 mos · Mumbai, Maharashtra, India · Remote

Designed predictive models using linear regression, and time series analysis with the help of software like R and Python.
Worked on the Automation of data extraction from PDF files to Excel.
Built code for translation of various languages like Spanish, and Mandarin to English of Excel data files with the help of Google Translate API.
Update the Model backend query to align with the change of data structure for fresh deployment.
Built Snowflake/SQL Queries for creating View tables according to business needs and creating a dashboard thereafter.

Regression AnalysisRMicrosoft Power BISnowflakeTime Series AnalysisForecasting+6

Sbi mutual fund

Risk Consultant

Dec 2020 – Jan 2021 · 1 mo · Mumbai, Maharashtra, India

Worked on Portfolio Analysis of Investment policies and defined the problem, scope, and goals, identify data metrics and build a data set.
Developed an intent classification model to classify the user text according to the intent and a customized named entity extraction model to extract the entities in the user text, assisting in the database retrieval of the needed query.

Automotive research association of india (arai)

Data Analyst Intern

Jan 2020 – Jul 2020 · 6 mos · Pune, Maharashtra, India

Utilised Predictive modelling on a Sensor-based dataset for testing of pre-launched vehicles in the market; regression techniques while tackling problems of Multicollinearity to achieve the best accuracy of the model.
The expected business impact was the elimination of a Sensor that cost Rs. 2 Crores.