SACHIN TIWARI 
Senior Software Engineer with 5+ years at Optum (UnitedHealth Group) specialising in full-stack development, enterprise process automation, and cloud optimisation. Delivered automation solutions managing $2.5M+ in contract revenue for 8,000+ vendor contracts, saved $25K/month in cloud costs, and impacted 40,000+ employees.
Experienced in AI integration (OpenAI), Azure, Power Apps Development (Power App, SharePoint, Power Automate, Dataverse) and leading end-to-end client engagements and in full-stack development in latest frontend technologies (Angular, React, NextJS), APIdevelopment (FastAPI, .NET 7) and database development (SQL Server).
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