Tanisha Pattnaik is a Senior Analyst currently at Shell since September 2025. Previously worked as a Senior Analyst at Prescience Decision Solutions in September 2025 and at Mu Sigma Inc. from July 2021 to September 2025, with notable contributions in commodity price forecasting and supplier cost management for Australia's leading liquor retailer. Developed a SARIMA-based time series forecasting model using Python, improving supplier negotiations and cost-saving opportunities. Tanisha also created an Excel-based CPI Analysis Dashboard, monitoring over 500 SKUs, and analyzed cost drivers affecting price fluctuations. Earlier experience includes marketing analytics for America’s largest home improvement retailer and credit card analytics for a leading global bank. Tanisha holds a Bachelor of Technology in Computer Science from SRM IST Chennai, completed in 2021.
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