Your custom software, for a fixed budget.Every week, your priority features go to production.

The monthly budget is built with you, from your numbers and your objectives, during a second meeting. Your budget covers continuous development, maintenance and unlimited priority changes. Invoicing is monthly and fixed, with no surcharge for licences or number of users. You know your exact spend before you start.

A fixed-price project on a written specification freezes the scope on signing day; when the business need evolves, every adjustment goes through an addendum. Hiring in-house takes six to twelve months to recruit and onboard, and concentrates the knowledge of a role on a single person. The subscription replaces the estimate with a fixed monthly budget, a scope steered by delivered value, and a continuous delivery discipline written into the contract from day one.

The first 15 working days of work are a trial period. You accept features as they are delivered. If at the end you decide to proceed, you settle the invoice and the subscription starts. If you decide not to continue, no invoice is issued and you owe nothing. The code produced remains the property of DEVEDANOS during the trial period and is transferred to the client upon payment of the first invoice.

It covers the behaviour of features you have accepted and approved, for the duration of the subscription. If one of them starts behaving differently after a later modification to the application, we fix it and we lock the behaviour with an automated test. It does not cover change requests on existing features (that is an evolution), nor defects found during acceptance testing of a new feature (the feature is not yet delivered).

No minimum commitment duration. You can terminate the subscription in writing at any time, without justification. The subscription starts at 15 working days per month per team member. This volume can be adjusted by mutual agreement with 30 days written notice.

Software developers with the technical skills to cover the development process end to end: understanding your business, your information system and commercial objectives, aligning technical decisions with your strategy, specifying, developing, testing, deploying. When your project requires more than 15 days of work per month, we assemble a focused development team. Your developers understand your business, develop your software, and make the technical decisions on your project.

Each week, you decide your priorities: the next feature to specify, to develop, to deploy. We build it, you accept it, it ships. The scope adjusts week by week with what you learn from real usage.

Scrum, SAFe, ceremonies, sprints, estimates, release planning: these methods have become an industry in their own right. They often add bureaucracy where less is needed. They replace steering by outcomes with steering by velocity, and end up slowing down the teams they were supposed to accelerate.

We follow the Manifesto for Agile Software Development (do not be put off by its dated appearance). Sébastien Nobour, founder of DEVEDANOS, is co-signatory and certified by Dave Farley on the Continuous Delivery discipline. Our DevOps culture means the same people who develop are also the ones who deploy and monitor in production.

Concretely, every modification goes through a deployment pipeline in three stages: fast verification (unit tests, type checking, static analysis), business validation (acceptance tests), and quality control (performance, security, accessibility). Code is managed in a shared version history (Git). Rather than parallel versions isolated for weeks, we integrate our changes into the main version daily, because the more frequent the integrations, the simpler and safer they are. The result: at least one production deployment per week.

You can terminate the subscription in writing at any time, without justification. The source code, infrastructure, deployment pipeline and documentation are your intellectual property from the first payment. During the reversibility month, we support your team until they can build, test and deploy without us. The pipeline continues to protect every future change, regardless of which developer works on it.

Corrective maintenance (bug fixes), adaptive maintenance (dependency updates, security patches, browser compatibility), preventive maintenance (refactoring, performance optimisation), and evolutive maintenance (new features) are all part of the subscription.

In the traditional model, one provider builds and delivers, then another handles application maintenance under a different contract. The problem: a maintenance contract funds bug fixes rather than product evolution. Your software stops evolving while your market moves. The model creates a perverse incentive: fixes are billed per incident, so every bug not resolved at its root generates recurring revenue. When the same organisation delivers the project and wins the maintenance contract, the model rewards incident volume rather than their disappearance.

Software in production keeps evolving for as long as your business evolves. At DEVEDANOS, the same team develops, tests, deploys, and maintains your software continuously, in the same pipeline.