Financial modelling
Transaction, valuation and planning models, built from scratch or rebuilt from inherited workbooks, with clear structure, documented assumptions and checks that catch errors early.
I'm Aakash Vasa, a Chartered Accountant who spent nearly 12 years at Deloitte building financial models, pricing tools and analytics for teams in the UK, Europe, Australia, Canada and the Middle East. Through Aarna Insights I take on projects and part-time or fractional roles, working remotely or on-site in Mumbai.
Transaction, valuation and planning models, built from scratch or rebuilt from inherited workbooks, with clear structure, documented assumptions and checks that catch errors early.
Power BI dashboards, Power Query pipelines, SQL and Excel automation that turn scattered data into reporting people actually use.
Pricing models and pricing tools, from the commercial logic behind them to the tool your teams use every day.
Hands-on sessions in Excel, Power Query, Power BI and modelling practice for finance and consulting teams, built around the files they work with.
Delivered during my time at Deloitte. Clients are not named.
| Engagement | Scale | What it involved |
|---|---|---|
| Firmwide pricing tool | 20,000+ users, 8+ years | A pricing tool used across the UK and Swiss practices, developed and supported over more than eight years. |
| Loan portfolio valuation | 500,000+ loans | Valuation of a large loan portfolio, rebuilt into a hybrid SQL engine. |
| M&A purchase price allocation | Major transaction | Purchase price allocation for a significant acquisition, delivered on secondment in Saudi Arabia. |
| Power BI and Power Query training | 50+ sessions | A firmwide training programme in Power BI and Power Query. |
I started in audit at Deloitte in 2014 and moved into financial modelling and data analytics, where I spent most of the next decade. When I left in 2026 I was an Associate Director in the Modelling & Insights team and the geography lead for Australia, Canada, and the Netherlands and Belgium.
The work I enjoy most sits where finance meets data: models that have to scale, tools that thousands of people rely on, and slow spreadsheet processes rebuilt so they run faster and are easier to check. I also like teaching it.
A model, tool or dashboard with a clear scope, timeline and deliverables.
Set days each week or month, working as an extension of your finance or analytics team.
Sessions for your team, from a single workshop to a full programme.
Tell me what you're working on, when you need it, and where the numbers live today.
aakash@aarnainsights.com