Headline

BI & Data Engineer @ TCS (PepsiCo) | Power BI · Azure · SQL | Serving 10,000+ Users | Open to Data Engineering Roles

About

I'm Mahendra Singh — a Business Intelligence & Data professional with 4+ years at TCS, embedded within one of the world's largest FMCG companies, PepsiCo. My work lives at the crossroads of data engineering, BI development, and enterprise operations — where the stakes are real and the scale is massive. Here's what that looks like in practice: 📊 Built and deployed Power BI dashboards used by 1,500+ daily users — giving business stakeholders real-time visibility to make faster, smarter decisions 🔧 Led a Teradata-to-Azure cloud migration, implementing SQL fixes that cut data quality incidents by 40% ⚡ Optimized complex SQL queries that improved reporting efficiency for 6,000+ users and reduced data load volume by 25% ✅ Delivered SAP Crystal Reports to 10,000+ users with 100% on-time delivery and zero quality escalations 🔄 Spearheaded a zero-downtime job migration (Autosys → HWA) — keeping business operations running without a single interruption I've operated across the full data stack — from production support and ETL monitoring to Azure Synapse, ADF, and AI-powered analytics. I don't just fix problems; I build systems resilient enough that problems rarely happen. My Stack: SQL (Teradata · T-SQL · MySQL) · Power BI (DAX · Power Query) · Azure Synapse · Azure Data Factory · Python (Pandas · Matplotlib) · Tableau · SAP Crystal Reports · ServiceNow · Git Certifications: Microsoft Azure AI Fundamentals (AI-900) · Power BI Data Analyst Associate · Google Gen AI Competency · Tableau Proficiency B.Tech, Computer Science & Engineering — DIT University, 2021.

Location

Chamoli

Work experience

System Engineer at Tata Consultancy Services, Oct 2023 - Present · 2 yrs 8 mos, Delhi, India, Engineered Power BI dashboards adopted by 1,500+ daily users, transforming raw enterprise data into real-time decision intelligence for senior stakeholders across PepsiCo Spearheaded a zero-downtime migration from Autosys to HWA, safeguarding business continuity and delivering flawless UAT accuracy across all production workloads Supercharged SQL query performance for 6,000+ users, cutting data load volume by 25% and slashing reporting turnaround time across critical business functions Anchored data integrity during PepsiCo's Teradata-to-Azure cloud migration, resolving SQL-layer defects that drove a 40% reduction in data quality incidents post-migration

Assistant System Engineer at Tata Consultancy Services, Oct 2021 - Oct 2023 · 2 yrs 1 mo, On-site, Sustained 100% on-time delivery of SAP Crystal Reports to 10,000+ users across the enterprise with zero quality escalations across the entire tenure Dissected multi-million row datasets to uncover and resolve critical data discrepancies, directly strengthening the accuracy of business-critical reporting pipelines Guaranteed 100% data integrity through major infrastructure migrations and UAT cycles, ensuring zero data loss during high-stakes production releases Managed high-priority production incidents end-to-end via ServiceNow, minimising business downtime and maintaining transparent, real-time stakeholder communication

Education

Bachelor of Technology - BTech, Computer Science, DIT University