Our methodology

The rise of AI reinforces our conviction that technology can address the major challenges of our time. It offers the opportunity to design and deploy ingenious, sustainable solutions in service of clients, patients and citizens.
We believe in the Lean Tech® System: a strategy that combines the speed of the world’s best technology companies with the rigour of Toyota’s Lean Management.

We invest for the long term. We invest first in the development of people, before building products. This is how we build a high-performing company — one whose societal role is to learn, every day, how to better live together.

The Lean Tech® System brings together a set of principles and practices designed to help technology organisations scale an agile culture. It is the result of more than 15 years spent observing the most high-performing tech companies and experimenting in the field, while supporting our own growth at Theodo.
Inspired by the Agile Manifesto, Lean Tech® extends its spirit by incorporating the principles of Lean Management and best practices from the technology world. At the heart of the system lie five interdependent principles:
Clarifying the value sought by end users aligns the entire organisation — from tech teams to executive committees — around a shared compass.
It prevents us from wasting time on elegant but useless solutions, and pushes us to deliver early what truly matters.
What changes: we stop talking about “features” and start talking about impact. We build organisations oriented around problems to solve, rather than roadmaps to execute.
A Lean Tech® organisation is a network of autonomous, accountable and interconnected teams, supported by high-performing technology tools and a modular architecture.
Each team is able to deliver end-to-end value without relying on centralised processes.
What changes: fewer silos, greater responsiveness. Teams no longer suffer from complexity — they master it.
In a Lean Tech® organisation, quality is not a phase that comes after development.
It is a requirement embedded from the very start, at every level.
We put practices in place to detect issues as early as possible, address root causes, and prevent them from recurring — Dantotsu, code reviews, TDD, automation, observability tools, and more.
What changes: fewer bugs, less rework, teams proud of their products, and long-term customer satisfaction.
This pillar aims to synchronise the organisation’s efforts with real customer demand.
It relies on a pull-based workflow, work-in-progress limits, reduced feature inventory, and short delivery cycles.
Teams learn to deliver just what is needed, at the right time — without overload or bottlenecks.
What changes: faster learning from the market, without compromising quality. Greater predictability, smoother flow.

Enfin, le Lean Tech® est un système apprenant.
Là où beaucoup d’organisations s’enferment dans des process figés, le Lean Tech cherche à progresser en permanence, à partir des problèmes réels rencontrés sur le terrain.
Les équipes sont formées à la résolution de problèmes, les standards sont vivants, les savoirs partagés activement, et les améliorations portées par ceux qui font.
Ce que ça change : On transforme chaque problème en opportunité de progrès. L’organisation devient plus intelligente à mesure qu’elle grandit et reste flexible pour répondre aux besoins des clients.



Building Lean Tech® organisations that are both high-performing and human-centred cannot be done alone.
The Lean Tech® community brings together product, technology and transformation leaders who share a common vision: learning together to better serve our customers by developing our people.
The Lean Tech® community is active in London and Paris:
- Lean Tech® Circle Londres
- Lean Tech® Paris
