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Soham Das

@sohamdas6

Machine Learning Engineer at Cognizant who deployed predictive models and built AI systems, data pipelines, and RAG applications.

India

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At Cognizant, I engineered an end-to-end machine learning pipeline with Python, SQL, and PySpark, processing GB-scale datasets across a distributed cluster. I trained, validated, and deployed predictive models in a mock production environment.

At ThinkDeck, I built web-scraping workflows across 100+ sources and designed ThinkDeck-api, a FastAPI backend for data requests and model interactions. I also engineered an OpenAI GPT API fallback that sustained approximately 99% availability.

On projects including ZKredit and BandGate, I’ve worked on privacy-preserving risk scoring and an evidence-grounded, multi-agent system for enterprise RFPs. My work also includes data engineering, applied AI, and blockchain projects, including a lakehouse for Kolkata AQI data.

Experience

Work history, roles, and key accomplishments

AI/ML Intern

Cognizant

Jan 2026 - Apr 2026 (3 months)

Engineered an end-to-end machine learning pipeline using Python, SQL, and PySpark, running feature engineering and transformations on GB-scale datasets across a distributed PySpark cluster. Trained, validated, and deployed 3–5 predictive models into a mock production environment, applying core MLOps and scalable-architecture practices.

Python SQL PySpark MLOps Machine Learning Feature Engineering Model Deployment

Data Science Intern

SpiritualData

Jun 2025 - Sep 2025 (3 months)

Architected and co-developed the foundational ETL pipeline for the ConceptAI initiative, ingesting GB-scale raw data into structured formats. Evaluated database technologies (Neo4j), configured a GCP production server, and built an LLM-based categorization system to automate labeling across 4–5 domain categories.

ETL Neo4j GCP LLM Data Engineering Python

ML Intern

ThinkDeck

Jun 2025 - Sep 2025 (3 months)

Built web-scraping workflows across 100+ sources to curate datasets for model fine-tuning and database population. Designed ThinkDeck-api, a FastAPI backend serving data requests and model interactions via REST APIs, and engineered a dynamic fallback layer using the OpenAI GPT API to sustain ~99% availability.

Web Scraping fastAPI REST APIs OpenAI GPT API Python

AI/ML Lead Engineer (Apprenticeship)

Omdena — CropCycle

May 2025 - Jul 2025 (2 months)

Led a team of 5 in data collection, merging, governance, and augmentation on large multi-source datasets for a mobile AI system in Rwanda. Designed and developed the backend AI model and system architecture, reaching 88% model accuracy on predictive tasks.

Data Collection Data Governance Data Augmentation AI Model Development System Architecture Python

Education

Degrees, certifications, and relevant coursework

Heritage Institute of Technology, Kolkata

B.Tech, Computer Science and Engineering (Data Science)

2022 - 2026

Grade: 8.80/10.0

Activities and societies: Certifications: IBM Data Science Professional Certificate; Stanford Machine Learning & Deep Learning Specializations; AWS Certificate

Pursuing a B.Tech in Computer Science and Engineering with a focus on Data Science, maintaining a GPA of 8.80/10.0.