Rohan Singh Email & Phone Number

Bengaluru, Karnataka, India

Part of WebEx Analytics platform> Built and deployed an Apache Spark Cron Job to join data from MongoDB, Postgres and Apache Iceberg format table. Joined data was stored in Apache Pinot and surfaced to end user using Spring boot APIs> Built and deployed a Flink Job to process and aggregate Calling Metrics data from Apache Kafka and store it in Apache Pinot. Data was surfaced to end user using Spring Boot APIs> Designed and Modelled Postgres DB for storing Contact Center… Show more Part of WebEx Analytics platform> Built and deployed an Apache Spark Cron Job to join data from MongoDB, Postgres and Apache Iceberg format table. Joined data was stored in Apache Pinot and surfaced to end user using Spring boot APIs> Built and deployed a Flink Job to process and aggregate Calling Metrics data from Apache Kafka and store it in Apache Pinot. Data was surfaced to end user using Spring Boot APIs> Designed and Modelled Postgres DB for storing Contact Center IVR/ Digital Data. Built and Deployed a Java Spring Boot Microservice on top of Postgres> Migrated Microservice from MongoDB environment to Postgres and also created a process to migrate data from MongoDB to Postgres. Making a 90% cost reduction> Built an ETL Pipeline to ingest aggregated data for Slido. Data was stored in Apache Iceberg format table and Apache Pinot. SQL queries were written on top of this Data to present insights to end-users Show less

Bengaluru, Karnataka, India

Webex Experience Management. Part of the CloudCherry acquisition by Cisco Systems Inc.(Oct'19).Webex XM is a Customer Experience Management platform for the Contact Center. We help improve Customer-Agent interaction experience.> Built an API Gateway on AWS integrated with AWS Lambda functions to split requests across microservices> Used Jenkins and AWS CLI to deploy/ update AWS services across multiple regions> Built a Speech-To-Text transcription service to… Show more Webex Experience Management. Part of the CloudCherry acquisition by Cisco Systems Inc.(Oct'19).Webex XM is a Customer Experience Management platform for the Contact Center. We help improve Customer-Agent interaction experience.> Built an API Gateway on AWS integrated with AWS Lambda functions to split requests across microservices> Used Jenkins and AWS CLI to deploy/ update AWS services across multiple regions> Built a Speech-To-Text transcription service to transcribe Customer-Agent conversations> Built an ETL pipeline to consolidate data from multiple sources for a large scale SMS/ Email survey dispatcher and provide analytics on top of this data> Worked on an open text AI Classification Engine on our platform using IBM Watson Studio Show less

Bengaluru, Karnataka, India

Lucy.law was a personal project with a Friend. Tech Stack- Python, MongoDB, Azure, NLTK, scikit-learn, Flask/JWT/RESTful> Shortlisted by Y-Combinator and Techstars> Built and architected the platformFeatures include-> ML based search engine for legal research> Petition builder MS word plug-in> Legal Contract Management System with support for User-Management and Data Encryption> OCR for processing legal documents in hard copies>… Show more Lucy.law was a personal project with a Friend. Tech Stack- Python, MongoDB, Azure, NLTK, scikit-learn, Flask/JWT/RESTful> Shortlisted by Y-Combinator and Techstars> Built and architected the platformFeatures include-> ML based search engine for legal research> Petition builder MS word plug-in> Legal Contract Management System with support for User-Management and Data Encryption> OCR for processing legal documents in hard copies> Legal clause compliance predictor Show less

Bengaluru, Karnataka, India

CloudCherry was an end-to-end Customer Experience Management solution for the enterprise. Tech Stack- .NET, R, Statistics, Python, MongoDB, Rest-APIs, Azure, R-Markdown> Built R-CloudCherry package to easily pull sampled and cleaned survey data directly into R-Studio> Built an API to help create better survey questionnaires> Built a R-Markdown template to present findings from survey data

Bengaluru Area, India

Tech stack- Regression, Sig-test, Python, R, MongoDB, C#, .NET, Azure, Rest-APIs> Built API in .NET from scratch for Relative Importance Analysis based on Relaimpo R package> Built APIs in .NET from scratch for Linear/ Logistic Regression using gradient descent, T-Test, Correlation Matrix etc.> Worked on an API for performing multi-dimensional path analysis

Bengaluru, Karnataka, India

Tech Stack- Python, R> Worked on a study to benchmark different text classification engines.> Built the logic for an API to detect fraud customer feedback data.> Worked on a ML model to predict if a customer would churn or not using the customer feedback data.

Bengaluru, Karnataka, India

> Part of the First Customer Success team at CloudCherry.> Handled 15+ Clients' Operations, Roll-Outs and Pilots across Retail, BFSI, Airlines, E-Commerce etc.