BI & Data Analytics Expert

Rajkumar
Krishnan

Assistant Manager — Business Intelligence & Data Visualization

10+ years transforming complex enterprise data into strategic decisions. Specialized in Tableau, Snowflake, ETL automation, and AI-powered analytics at Flex Corporation, Chennai.

+91 8754433322
Rajkumar.krishnan86@outlook.com
Chennai, India
✉ Get In Touch View Journey ↓
RK
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Yrs Exp
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Faster Queries
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Effort Saved
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Companies
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Projects
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Data Integrity
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Query Turnaround
Improved via SQL AI Chatbot
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Manual Effort Reduced
ETL validation automation
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Data Integrity
Across Snowflake migration
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Years Experience
End-to-end BI delivery
// Technical Arsenal

Skills & Expertise

Tableau95%
SQL / Snowflake92%
ETL Design & Automation90%
Python (Pandas, Streamlit)85%
Supply Chain Analytics88%
Power BI / Grafana80%
VBA / Excel Automation82%
BI Tools
TableauPower BIGrafanaSQL AI Chatbot
Databases & Cloud
SnowflakeTeradataSQLOpenAI GPTStreamlit
Domain Expertise
Supply ChainMDMProcurement DataERP Migration
Methods
5 Why AnalysisPareto AnalysisLean Green BeltAgile
// Data Visualization

Analytics Dashboard

Career Progression
Roles & tenure across companies
Skill Domain Breakdown
Expertise distribution by area
Project Impact Metrics
Measurable outcomes from key projects
Technology Radar
Proficiency across tools & platforms
// Career Journey

Work Experience

Flex Corporation
📍 Chennai, India · Mar 2015 – Present · 9+ years
Assistant Manager — BI Development & Data Visualization
Feb 2022 – Present
  • Leading BI initiatives — Tableau, Snowflake, SQL & ETL pipeline development at enterprise scale.
  • Built SQL AI Chatbot enabling natural language querying with real-time enterprise data access.
  • Built scalable dashboards driving data-driven decisions across global business functions.
  • Managing stakeholder requirements, delivering actionable insights through customized BI solutions.
Team Lead — Supply Chain Data Solutions & ERP Migration
Jul 2018 – Jun 2019
  • Oversaw data architecture and reporting during major ERP system migration project.
  • Developed supply chain analytics — inventory visibility, demand forecasting, procurement tracking.
  • Partnered with IT teams for successful data mapping and migration.
Process Specialist — Master Data Management (MDM)
Mar 2015 – Jul 2018
  • Governed master data across enterprise systems ensuring accuracy and policy compliance.
  • Streamlined MDM processes reducing redundancy and improving data turnaround times.
  • Created data validation protocols and automated data workflows.
Visteon Corporation
📍 Chennai, India · Jun 2012 – Mar 2015 · 3 years
Senior Analyst — Procurement (Electronic Parts)
Jun 2012 – Mar 2015
  • Managed procurement analytics and sourcing strategies for electronic components — global operations.
  • Implemented spend analysis and supplier performance tracking models.
  • Collaborated with engineering & sourcing teams to optimize cost and lead time.
HCL Technologies
📍 Chennai, India · Feb 2010 – Jun 2012 · Client: KLA-Tencor
Senior MIS Executive — Procurement Analytics
Feb 2010 – Jun 2012
  • Developed and maintained procurement dashboards, KPIs, and vendor scorecards.
  • Delivered daily, weekly, monthly reports to client leadership with actionable insights.
  • Automated reporting processes improving efficiency and accuracy significantly.
TATA Teleservices Ltd.
📍 Chennai, India · Jun 2008 – Jun 2010
Executive — Data Analyst (Telecom Tower Operations)
Jun 2008 – Jun 2010
  • Analyzed mobile tower performance, network uptime, and energy consumption data.
  • Generated location-based performance reports for field operations and network planning.
  • Identified operational bottlenecks and proposed data-driven solutions.
// Featured Work

Key Projects

PythonOpenAI GPTStreamlitSnowflake
SQL AI Chatbot Assistant
  • Custom AI chatbot converting natural language queries to SQL for real-time enterprise data access.
  • Integrated with Snowflake/Teradata — business teams self-serve data without writing SQL.
  • Query turnaround improved by 70%, reducing BI team dependency.
  • Secure backend APIs with OpenAI GPT powering real-time responses.
SnowflakePythonSQL
ETL Validation Automation
  • Robust framework comparing migrated Snowflake tables with legacy systems during site migration.
  • Automated field-level validations: data type, nullability, length, spec alignment.
  • Ensured 100% data integrity with audit-ready mismatch reports.
  • Reduced manual validation effort by 80%, accelerating migration timeline.
TableauTeradataSQL
PO Automation Dashboard
  • Streamlined Purchase Order processes for enhanced efficiency in order management.
  • Tableau dashboards monitoring PO metrics daily and weekly across the organization.
  • Resolved blocking orders and non-transmitting orders to suppliers.
TableauSnowflake
Supplier Capability Analytics
  • Evaluated supplier performance across multiple EBS platforms.
  • Onboarded non-EBS suppliers improving system-wide efficiency.
  • Tableau dashboards tracking real-time supplier performance metrics.
VBAOutlookSharePoint
Supplier RFQ Automation
  • Automated RFQ consolidation process, reducing manual effort and improving accuracy.
  • Integrated VBA scripts with Outlook for streamlined supplier communication.
  • Auto-updated SharePoint folder with consolidated supplier responses via email.
// Credentials

Certifications & Education

🟢
Lean Green Belt
Lean Six Sigma Certified
📊
Tableau Data Science
Udemy
🐍
Data Science in Python
Simplilearn
🎓
Bachelor of Computer Applications
BCA Degree
🌐
Languages
English · Tamil
Let's Build Something Insightful

Open to BI, Data Analytics & AI-driven opportunities in Chennai or remote.

✉ Email Me 📞 +91 8754433322