Training for the complete finance stack: fundamentals, real-world practice, and continuous improvement. Turn numbers into decisions, systems into outcomes, and teams into progress. Community-first and built for the greater good. Start free. Fair pricing.
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Build strong foundations, better workflows, and the confidence to lead change.
Master real finance foundations with CPA, CMA, and CFA logic applied to planning, control, and decisions.
Learn SAP, Power BI, M365, automation, and data flows to build reliable reporting and smarter decisions.
Use Lean, operations, and change management to fix processes, align teams, and drive better execution.
I’m Arnaud. More than a decade in finance and operations (call it 30 with overtime). I've seen patterns repeat everywhere: smart teams buried in busywork; data drifting from operations; tools over-engineered and under-used; and incentives that reward optics over outcomes, letting politics and short-term career plays win while the business pays in delay and rework. GoFast.Finance exists to flip that with sound foundations, usable frameworks, and healthy standards.
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Clean data, faster closes, better decisions.
Standardized workflows that cut rework
Fewer spreadsheets, more automation
One source of truth your team trusts
KPIs that tell one clear story
Dashboards driving action, not confusion
Forecasts that update in minutes, not days
Clarity on roles and priorities
Smoother collaboration finance & ops
Visible progress people feel and sustain
Not kidding, no bribe involved !
Anonymised excerpts from public LinkedIn recommendations. You can read the full versions and many more on my LinkedIn profile.
"Arnaud played a key role in developing and analysing KPIs for more than 20 production sites. Clear, reliable, and always focused on moving projects forward: a trusted partner for our team."
Senior leader in Technology, Quality & Processes @ Global manufacturing group
"Arnaud supported our management team with numerical analyses and business simulations. He understood the business very quickly and turned complex topics into clear scenarios and recommendations."
Global business development leader @ Robotics & automation
"Brilliant controller with strong SAP know-how and business acumen. Arnaud was central in turning our factory’s results around, improving predictability, and training project managers on financials."
Site & global product line leader @ Large industrial plant