Custom SaaS · MVP · B2B web applications
You have a product idea, a market to test or an existing SaaS to improve. SDX Development helps define the first useful release and build a working product around it, with discovery, development and technical leadership for European and international teams.
From the idea to a product people use
The aim is to put a complete core workflow in the hands of real users so you can learn. Account creation, business value, data, security and operation already need to work together. Additional features belong in the roadmap until their value has been established.
Turn an idea into a usable first release that tests the value proposition with users and the market.
Build an online service for customer organisations and their users, with operational requirements considered from the start.
Stabilise an initial release, clarify its architecture or prepare the next stage while assessing what can be retained.
A scope that tests a clear hypothesis
The MVP keeps the workflow needed to test the main product hypothesis. Helpful but non-essential features stay in the roadmap to protect budget and timescale while retaining sound technical foundations. The team agrees what constitutes a successful first use before development starts.
Looking to improve a process used only by your own team? The custom business software service is a better starting point for that need.
Authentication, invitations, roles, permissions and data separation appropriate to users and customer organisations.
A clear introduction to the product’s value, with understandable states and consistent actions throughout the core workflow.
Plans, trials, payments, invoicing and access rules aligned with the chosen commercial model and the agreed scope.
Data models, APIs, imports, exports and connections to the services needed by the priority workflow.
Environments, backups, logs, error reporting and indicators that make day-to-day operation observable.
Least-privilege access, protected secrets, traceability and data handling considered during discovery.
Progress through verifiable releases
Each stage produces something the team can review before committing to the next one.
B2B web product
A business ERP connecting jobs, constraint-based scheduling, stock, invoicing and a customer extranet, with ITS Report for video inspection.
Explore the platform ↗Explore the case study →
Deployed business application
ITS Report on inspection equipment: local video, captures and reports, with a guided mode and an interface adapted to operators.
View the product presentation ↗Explore the case study →
Custom B2B application
An IoT supervision platform connecting equipment, operational incident reports, commands and resolution tracking.
Explore the project →I work remotely with product founders, SMEs and teams through discovery workshops, working demonstrations, written decisions and shared priorities. We agree review times, decision-makers and the release plan around your team’s location. Target languages, hosting preferences and market-specific integrations are identified before they affect delivery.
Development supports commercial validation; it does not replace it. The MVP lets you confront a proposed use with real feedback and choose the next improvements. Scope, budget and acceptance criteria are agreed before each stage, with external subscriptions and operating costs made explicit.
Business software usually supports one organisation’s internal processes. SaaS is a product offered to multiple companies or users, with account management, plans, operations and often subscriptions. Technical foundations can overlap, but the product and commercial objectives differ.
The workflow delivering the main value, necessary accounts and permissions, useful data, minimal administration, security, tests and ways to gather feedback. A clickable mock-up can validate a design, but a usable MVP also needs working application behaviour.
The starting point on the pricing page is €25,000 excluding VAT for a very basic SaaS. The budget depends on roles, business rules, payments, integrations, data migration and the required level of finish. Hosting, external services, maintenance and later releases are scoped separately.
The current indicative range is three to six months for a professional MVP, including discovery, design, development, testing and production release. More complex requirements, content preparation or external approvals can extend that timescale; the project plan follows the agreed scope.
Yes, after reviewing code, data, access, infrastructure and dependencies. That review identifies what can be kept, stabilised or rebuilt before a realistic delivery scope is confirmed.
The agreement defines intellectual property, third-party components and code handover conditions. Repository access, documentation and operational access are planned to support continuity and future maintenance of the product.
Personal data, access rights, backups and external services are reviewed during discovery. European hosting can be selected according to project needs, suppliers and budget; data location is an explicit architecture decision.
Usage observations, incidents and user feedback guide the roadmap. Maintenance, monitoring and new features are distinguished so commitments and recurring costs remain clear.
My work as CTO at Groupe WE informs architecture and delivery decisions. Technical support can complement development: roadmap prioritisation, cost and maintainability trade-offs, security, integrations and technical debt, in coordination with your own team and suppliers.
The role and time commitment are agreed with your team. The aim is to maintain continuity between product decisions, operational constraints and the ability to deliver the next useful release, with written decisions that remain accessible across time zones.
Business softwareA business ERP connecting jobs, constraint-based scheduling, stock, invoicing and a customer extranet, with ITS Report for video inspection.
Read the case study →SupervisionAn IoT supervision platform connecting equipment, operational incident reports, commands and resolution tracking.
Read the case study →Describe the problem, target users, validation already completed, planned features and deadline. We can define a coherent first product for your European or international market, with direct technical contact from France.
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