ROHIT RAJAK

Senior Data Analyst & AI Specialist

13+ Years of Data Engineering.

Deploying robust GCP pipelines, automating ETL workflows, and building advanced predictive models.

Bridging data science & business.

Transforming massive datasets to uncover trends, optimize processes, and visualize actionable KPIs.

Professional Journey

03/2022 - 11/2023

Technical Lead

Cognizant Technology Solutions

Engineered scalable GCP pipelines using BigQuery and external APIs to optimize enterprise ETL workflows. Reduced processing time by 40%. Led a 55-member analytics team ensuring 98.7% SLA.

06/2019 - 03/2022

Team Lead

Wipro Limited

Designed scalable BI dashboards using Dremel SQL and automated reporting. Programmed CHAID models to uncover customer trends, boosting performance by 22%.

06/2018 - 12/2018

Health Economist

Skyward Analytics

Built complex cost-utility and cost-effectiveness Markov models and decision trees for oncology and atrial fibrillation market access across EMEA.

01/2011 - 06/2018

Healthcare & SAS Analytics Specialist

IBM India

Programmed budget impact models using SAS/SQL. Analyzed massive healthcare datasets for HTA reporting under NICE/EMA regulatory guidelines. Mentored junior analysts.

Core Competencies

PythonRSASSQLGoogle Cloud PlatformBigQueryDataflowMachine LearningMarkov ModelsDecision TreesETL AutomationTableauPower BIReactNode.jsSix Sigma Green Belt