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Achintya Joy

@achintyajoy

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I build NLP, RAG, and data platforms that turn complex data into decisions.

India

Message

What I'm looking for

I'm looking to build data science and Generative AI products where I can apply LLMs, RAG, statistical modeling, and MLOps to deploy reliable applications that create measurable business or policy impact.

At Chicago Education Advocacy Cooperative, I deployed PyTorch SBERT NLP pipelines and geospatial analyses that uncovered transit service and accessibility gaps across train lines, bus routes, and neighborhoods for policy recommendations.

Previously at Tata Consultancy Services, I built PowerShell and SQL ETL workflows that cut reporting time by 90%, created Power BI dashboards that reduced storage-related support tickets by 30%, and resolved SQL and C#/.NET defects preventing monthly data loss.

I'm building production-minded AI systems, including CodeExplore, a Python RAG application using OpenAI embeddings, Pinecone, PostgreSQL, FastAPI, Redis, and LangSmith.

Experience

Work history, roles, and key accomplishments

Data Scientist

Chicago Education Advocacy Cooperative

Aug 2025 - Jun 2026 (10 months)

Deployed NLP pipelines with PyTorch-based SBERT and pandas to create annotated transit complaint datasets, uncovering service gaps across 8 train lines and 100+ bus routes to inform policy recommendations via a Streamlit dashboard. Performed Python geospatial analysis (GeoPandas, Folium) to map transit equity gaps across 70+ neighbourhoods, identifying accessibility barriers that informed cross-fu

PyTorch Pandas Geopandas Streamlit AWS Terraform Docker GitHub Actions fastAPI PostgreSQL S3 CI CD

Systems Engineer (Data Analytics)

Tata Consultancy Services

Jun 2021 - Jul 2023 (2 years 1 month)

Engineered PowerShell & SQL ETL pipelines automating data retrieval workflows, cutting reporting time by 90%. Created Power BI dashboards to monitor infrastructure health, reducing storage related support tickets by 30% and enabling data-driven decisions for technical and business stakeholders. Resolved critical SQL and C#/.NET defects to prevent 500,000+ record data loss monthly, improving report

PowerShell SQL Power BI C#.NET VBA Excel ServiceNow ETL Data Analysis

Software Developer - Intern

Pinnacle Seven Technologies

May 2019 - Jun 2019 (1 month)

Developed Python modules in Odoo to automate HR appraisal workflows, reducing processing time by 50%. Built Python automations that accelerated module delivery by 25%, improving team development efficiency.

Python Odoo Automation

Education

Degrees, certifications, and relevant coursework

Rochester Institute of Technology

Master of Science, Data Science

2023 - 2025

Pursuing a Master of Science in Data Science with coursework in applied data science, database design, neural networks, and data warehousing.

SRM Institute of Science and Technology

Bachelor of Technology, Computer Science

2017 - 2021

Earned a Bachelor of Technology in Computer Science and Technology with coursework in Python, machine learning, database management systems, and big data analytics.