Rohan Choudhary

Data Scientist

Gurgaon, Haryana, India4 yrs experience

AI EnabledAI ML Practitioner

Key Highlights

3.5+ years of experience in AI and Data Science.
Led multiple high-impact projects in machine learning and data engineering.
Filed an A1-grade patent for innovative ML solutions.

Stackforce AI infers this person is a Data Scientist with expertise in AI and Data Engineering.

Contact

Skills

Core Skills

Machine LearningData Engineering

Other Skills

AWS GlueAWS LambdaAWS S3AWS SageMakerAirflowAlgorithmsAmazon AthenaAmazon RedshiftAmazon S3Amazon Web Services (AWS)Analytical SkillsAnalyticsApache KafkaApache SparkApplication Programming Interfaces (API)

About

Rohan has more than 3.5+ years of Experience in field of AI and Data Science. Being hard working, efficient, and a quality-driven professional he always aims to go an extra mile in every task given to him with full responsibility. His career priority is to get more industrial experience in the field of AWS Data Engineering as well as AI (NLP/LLM/Machine learning/Deep learning with Sagemaker). He is very thorough in his technical and analytical skills alongside quick learning skills as demonstrated by getting accolades in the workspace.

Experience

4 yrs

Total Experience

2 yrs 9 mos

Average Tenure

1 yr 3 mos

Current Experience

Mastercard

Data Scientist - 2

Mar 2025 – Present · 1 yr 3 mos · Gurugram, Haryana, India · Hybrid

Samsung r&d institute india

Data Science Engineer - 1

Jun 2022 – Mar 2025 · 2 yrs 9 mos · Noida, Uttar Pradesh, India · Hybrid

● Led a sleep audio segmentation project, leveraging MLFlow for pipeline management for experiment tracking and feature bank creation after engineering audio features. Developed a deep learning model using CNN, LSTM, and TimeDistributed layers to enable end-to-end lifecycle management.
● Filed an A1-grade patent as the Main Inventor in Wearable Sensor Accuracy Improvement using novel ML modules.
● Developed a high-performance AWS backend integrating with the Government of India and Samsung Cloud VPC. Implemented AWS Lambda functions for optimized database management and API operations, achieving scalable, cost-effective execution of large-scale data tasks.
● Fine-tuned and quantized the Mixtral 8x7B LLM model over a dataset of research papers using TensorRT on CUDA-based bare-metal GPUs. Designed advanced prompts and LLM function calling to enhance user journeys in retrieving relevant papers. Utilized LangChain for efficient dataset generation for fine-tuning.
● Built an AWS Glue data catalog (on AWS EMR using Hadoop HDFS and MapReduce) and an ETL pipeline to streamline research papers processing from AWS S3 data lake to Redshift and Quicksight. Combined with Athena, this enabled efficient querying, empowering stakeholders with real-time insights. Automated the pipeline using AWS MWAA with DAG triggers based on S3 size thresholds.
● Developed a sensor-based activity detection system, utilizing smartwatch and ring data. Implemented a Kafka-Databricks pipeline with AWS S3 (parquet storage) for real-time ingestion, transforming signals into actionable features via Fourier transforms.

MLFlowCNNLSTMAWS LambdaTensorRTLangChain+7

Ofbusiness

Software Engineer Intern

Oct 2021 – Jun 2022 · 8 mos · Gurugram, Haryana, India

● Worked on Bidassist application (1 Lakh+ downloads) & SME Loans-Raw Materials application (10k+ downloads).
● Completed 70+ tasks/tickets related to feature creation/modification & existing bug fixes.
● Became one of the biggest contributor in the github repository.
● Implemented various analytics events for better analysis of user behaviour.