Open for Freelance Contracts

Stop wasting hours on
slow, broken Excel reports.

I build automated Power BI dashboards that load 65% faster — giving your leadership team data they can actually trust. 3+ years building enterprise BI systems, backed by an MBA in Marketing & Finance.

Book Free Discovery Call Get Free Dashboard Audit
Varun Chaubey

Varun Chaubey

BI Architect • MBA (Marketing & Finance)

65%

Speed Gain

700K+

Data Synced

3+ Years

Enterprise Exp.

14+ Dashboards

Production Ready

100%

On-Time Delivery

Zero

Broken Refreshes

The Impact

How I Optimize Reporting

Automating and streamlining complex pipelines to save time and reduce manual errors.

Before Optimization

  • • Slow-loading, fragmented Excel reports
  • • Prone to manual errors during data refreshes
  • • Outdated visuals lacking interactive analysis

With Power BI + Python + SQL

  • • Automated SQL & Python data pipelines
  • • Clean star-schema and high data accuracy
  • • Intuitive dashboards tailored for executives
Tech Stack

Tools & Technologies

Working with industry-standard technologies to ensure high performance and clean structures.

Power BI & Fabric

Modeling & Fabric Lakehouse

Python

ETL & Automation

SQL

Warehousing

dbt

Analytics Eng.

Snowflake

Cloud Data Lake

DAX Studio

Optimization

Free Resource

Is your Power BI Dashboard
running slow?

Download my Ultimate Power BI Performance Checklist. It’s a 1-page playbook filled with exact strategies I use to reduce load times by 65%.

  • 7-Step DAX Optimization Tuning guide
  • Star Schema Best Practices for cleaner models
  • How to slash memory usage & file sizes by 40%+

Get Instant Access

Enter details to download the free PDF

Executive Financial Dashboards

ROI tracking, revenue performance analytics, and cash flow visualization. I build the financial reporting that gives leadership absolute clarity.

Retainer / Professional Tier

Performance Optimization

Slow dashboards get abandoned. I re-architect slow reports to load 65% faster using advanced DAX tuning.

Starts at $600 (Project-Based)

End-to-End Pipelines

Raw data to clean warehouse. Automated Python/SQL ETL pipelines that handle 700k+ records reliably.

Starts at $1,800 (Professional)

Interactive Portfolio

Live Project Demos

Live Preview Global Operations

Global Food-Tech Analytics (Demo)

Converting 1M+ rows of public restaurant data into a real-time profitability engine across 15+ countries.

Problem 1M+ laggy rows
Solution DAX & Star Schema
Impact 65% Faster Loading
SQL Server + Power BI Open Full Report
Live Preview Music Intelligence

Spotify Streaming Analytics (Demo)

Analyzing global song streams and artist metrics with real-time performance tracking using the Spotify Web API.

Problem Manual API pipelines
Solution Python ETL Automation
Impact Daily Auto-Refreshes
Python Web API + Power BI Open Full Report
How We Can Work Together

Freelance Engagement Models

Flexible collaboration structures designed to meet your specific BI requirements.

Project-Based

Best for well-defined dashboards or pipelines. Fixed scope, clear milestones, and on-time delivery.

Starting from $600

Monthly BI Retainer

For ongoing support, report upgrades, and DAX adjustments. Guaranteed hours dedicated to your system every month.

Starts at $1,200/mo

Hourly Consulting

Perfect for code reviews, performance bottleneck debugging, or strategic DAX optimization sessions.

$50 - $75 / Hour

The 4-Phase Delivery Process

01

Discovery

30-min audit of your KPIs, messy data sources, and business goals.

02

Architecture

Star-schema design, ETL flow diagrams, and UI/UX wireframes.

03

Build

Advanced DAX dev, Python scripts, and performance validation.

04

Handoff

Documentation, training, and 30-day priority support.

Social Proof

What My Clients Say

"Varun's unique combination of a finance background and technical BI expertise completely transformed our executive meetings. Our dashboard loading times dropped by more than half, and we finally have single-source accuracy."

MR
Michael R.

Finance Lead • Gleuhr Contracts (London, UK)

"He eliminated weeks of manual Excel calculations. The new Python to Power BI data pipeline handles over 700k rows seamlessly without any data drops. Highly recommended for enterprise projects."

SK
Sanjay K.

Operations Director • Adglobal360 (Global Operations)

Starter

Executive KPI Portal

$600+
  • Star Schema Design
  • Up to 5 Report Pages
  • 7-Day Support & Loom Video
Start Project
Most Popular

Professional

Full BI Ecosystem

$1,800+
  • Python ETL Pipelines
  • Multi-Source Integration
  • Risk-Free Prototype Phase
Secure Spot

Enterprise

Strategy & Overhaul

$4,500+
  • 20+ Page Master Portal
  • Git-Based Version Control
  • 60-Day Support & Documentation
Book Discovery

Frequently Asked Questions

Do you sign NDAs?

Yes. I work with sensitive financial data daily. I'm happy to sign your standard NDA before we share credentials.

Who owns the code?

You do. You receive all PBIX files, Python scripts, and SQL queries. No vendor lock-in, ever.

Supported Data Sources?

I connect to Excel, SQL databases (PostgreSQL, MySQL, SQL Server), Cloud Warehouses (Snowflake, BigQuery), Web APIs, and Salesforce/CRMs.

Data Privacy & Security?

I design GDPR/CCPA-compliant pipelines. Your data is handled securely via standard Microsoft gateways with Row-Level Security (RLS).

Contract & Payments?

I contract securely via Upwork, Deel, or standard invoices. Payments are accepted in USD, EUR, or GBP via Wise/Bank Transfer.

Project Timelines?

Starter projects take 1 week. Retainers and complete enterprise BI setups typically range from 4 to 8 weeks.

Get In Touch

Let's build something
beautiful.

Ready to transition your business dashboard from a slow, manual tracker to a streamlined, automated BI system?

Book a Video Call

Calendly Session

Instant Message

Connect directly on LinkedIn for quick consulting queries.

Go to LinkedIn

Dashboard Audit

Send your report layout, and I will share performance recommendations.

Request Free Audit