Finance Analyst turned Microsoft certified Fabric & Power BI expert • Ex-PwC Consultant

Build and deploy a finance data project for |

Migration, Dashboards, Training — everything you need to switch to Power BI. ROI guaranteed in 4 months.

10+ years finance
50+ projects
100% satisfied
Achille Segnou - Expert Power BI
Available
+50 projects
Microsoft Certified Data Analyst
0+
years of experience
Finance & Consulting
0+
projects delivered
Power BI & Power Platform
0M€+
saved
for my clients
0%
satisfied clients
recommendation

Sound familiar?

These problems slow down hundreds of finance departments every day

Reporting takes days

Your teams spend hours copying and pasting between Excel files, consolidating data from different sources, and reformatting the same tables every month.

Errors go unnoticed

You've already discovered a formula error... after presenting the numbers to the management committee. And you wonder how many other errors are still hidden.

No one knows which version is correct

"Budget_v3_final_FINAL2.xlsx" — sound familiar? Your files multiply, versions accumulate, and finding the right data becomes a puzzle.

Decisions wait for data

Reports always arrive late for committees. By the time the numbers are ready, they are already obsolete. You're driving with the rearview mirror.

The transformation

From Excel struggles to Power BI serenity

Before (Excel)

3 days for a report
Manual consolidation, copy-paste, verifications...
"Which version?"
Files multiply, nobody knows which one is up to date
Errors in meetings
A broken formula discovered at the worst moment
Already obsolete data
By the time you finalize the report, the numbers have changed

After (Power BI)

**
Real-time dashboard
Automatically updated, accessible in 1 click
Single source of truth
Everyone looks at the same numbers, always up to date
Reliable data
Centralized, auditable calculations, no formula errors
Teams that analyze
No more data entry — your talents focus on value

My services

Custom solutions to modernize your data management

Power BI Dashboards

Finance & Real Estate Reporting

Imagine opening your laptop Monday morning and instantly seeing the health of your business. No more manual consolidation, no more waiting — just the insights that matter, ready to use.

Real-time KPIs
Smart drill-down
Secure mobile access
Automatic refresh

Ideal for: Monthly reporting, budget tracking, profitability analysis

Automation

Power Automate & SharePoint

While you sleep, your processes work. Invoice validation, data consolidation, alerts... Free your teams from repetitive tasks so they can focus on what really matters.

Custom workflows
Smart notifications
Microsoft 365 integration
Zero manual intervention

Ideal for: Invoice validation, data consolidation, automatic alerts

Data Team Reinforcement

Business Analyst & Data Analyst

Your data project needs extra hands? I join your teams as a Business Analyst or Data Analyst to accelerate your sprints, unlock complex issues, and transfer skills.

Agile team integration
Finance business expertise
Skill development
Mission flexibility

Ideal for: Data projects requiring finance and BI expertise

Cognos/SAP/Yardi/Oracle Reports

Power BI & Report Builder

Your data is trapped in legacy systems? I create Power BI reports and Report Builder listings connected via ETL to your existing sources. Modernize your reporting without touching your ERPs.

Robust ETL connection
Interactive Power BI reports
Paginated Report Builder listings
Automatic refresh

Ideal for: Companies with legacy ERP wanting to modernize their reporting

Cost+ Costing Models

NRVAT, TP Margin & Audit Trail

Transfer pricing, internal recharging, intercompany margins... These complex topics deserve flawless traceability. Deploy costing models with complete audit trail, from costs to revenues.

Direct/indirect cost allocation
NRVAT & TP Margin calculation
Complete audit trail
Interco/intraco revenues

Ideal for: Groups with transfer pricing and internal recharging challenges

Excel/PowerPoint → Power BI Migration

Modernizing your reports

Your Excel files and PowerPoint presentations have served well, but they've reached their limits. Transform your static dashboards into interactive Power BI reports without losing your history or disrupting your teams.

Existing Excel/PPT audit
Progressive migration
Team training
Post-migration support

Ideal for: Companies with Excel files or PowerPoint reporting presentations

Custom Training

In-company

The best technology is worthless without the skills to use it. I train your teams on Power BI and Power Platform with your real data, for immediate autonomy.

Customized program
Business case studies
Post-training support
Certification possible

Ideal for: Finance, controlling, IT teams

Data & Power BI Coaching

Individual sessions

Accelerate your skill development with individual coaching adapted to your level. From discovery to advanced expertise, progress with an expert with 10+ years of experience.

Free discovery
Beginner to advanced
Teams / Zoom video
Hands-on exercises

Ideal for: Professionals looking to level up their Power BI skills

How it works

A simple and transparent process, from idea to production

01

Diagnosis

We analyze your needs, existing data, and objectives. Free, 30 minutes.

02

Proposal

I present a custom solution with timeline, budget, and estimated ROI.

03

Execution

I develop your solution in short sprints, with regular demos.

04

Training

Your teams are autonomous. I remain available for support.

What they say

Concrete results for companies like yours

We used to spend 3 days a month consolidating our Excel reports. Today, everything is automatic and updated in real-time. Our teams can finally focus on strategic analysis rather than data entry.

Jean-Marc D.
CFOAXA Group Operations
-70% reporting time
Power BI costing cube

Achille understood our business challenges from the first meeting. The dashboard he created has become the central tool for our board meetings. Even the most change-resistant have adopted it within weeks.

Sophie R.
IT ManagerVitura Cegereal
100% Adoption
Real estate dashboard

They trusted me

10+ years supporting Finance, Real Estate and IT departments

AXA Group Operations

AXA Group Operations

Finance

2 years 10 months mission

Power Platform & Data Consultant

Power BI costing model for subsidiaries with VAT/NRVAT allocation keys

Tech stack
Power BIDAXPower AppsMicrosoft Fabric
Achille Segnou
PL-300DSCGEx-PwC10+ ans XP

About

Achille Segnou

Microsoft Certified Data Analyst

After 5 years at PwC in finance consulting and 10 years of experience in financial management, I created ACS PowerData to help companies truly leverage their data.

Chartered accountant and Microsoft Power BI certified (PL-300), I speak both the language of finance professionals and data analysts. That's what makes the difference.

Follow me on LinkedIn
10+
Years XP
50+
Projects
100%
Satisfaction

Let's talk about your project

Book a free 30-minute consultation to discuss your needs.

Or email me directly contact@acs-dataformation.fr